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Journal articles on the topic 'Spirometry'
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1
Jankowski, Piotr, Katarzyna Mycroft, Katarzyna Górska, Piotr Korczyński, and Rafał Krenke. "How to Enhance the Diagnosis of Early Stages of Chronic Obstructive Pulmonary Disease (COPD)? The Role of Mobile Spirometry in COPD Screening and Diagnosis—A Systematic Review." Advances in Respiratory Medicine 92, no. 2 (March 27, 2024): 158–74. http://dx.doi.org/10.3390/arm92020018.
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COPD is the third leading cause of death worldwide. Its diagnosis can be made with spirometry, which is underused due to its limited accessibility. Portable spirometry holds promise for enhancing the efficacy of COPD diagnoses. The study aimed to estimate COPD prevalence diagnosed with a portable spirometer in high-risk patients and compare it with COPD prevalence based on data from conventional, on-site spirometry. We also evaluated the strategy of a proactive approach to identify COPD in high-risk individuals. We conducted a systematic review of original studies on COPD targeted screening and diagnosis with portable and conventional spirometers selected from 8496 publications initially found in three databases: Cochrane, PubMed, and Embase. The inclusion criteria were met by 28 studies. COPD prevalence evaluated with the use of portable spirometers reached 20.27% and was lower compared to that estimated with the use of conventional spirometers (24.67%). In 11 included studies, postbronchodilator tests were performed with portable spirometers, which enabled a bedside COPD diagnosis. Portable spirometers can be successfully used in COPD targeted screening and diagnosis and thus enhance the detection of COPD at early stages.
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Calice, Ivana, and Yves Moens. "Modern Spirometry Supports Anesthetic Management in Small Animal Clinical Practice: A Case Series." Journal of the American Animal Hospital Association 52, no. 5 (September 1, 2016): 305–11. http://dx.doi.org/10.5326/jaaha-ms-6374.
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ABSTRACT Modern spirometry, like no other monitoring technique, allows insight into breath-to-breath respiratory mechanics. Spirometers continuously measure volume, airway pressure, and flow while calculating and continuously displaying respiratory system compliance and resistance in the form of loops. The aim of this case series is to show how observation of spirometric loops, similar to electrocardiogram or CO2 curve monitoring, can improve safety of anesthetic management in small animals. Spirometric monitoring cases described in this case series are based on use of the anaesthesia monitor Capnomac Ultima with a side stream spirometry sensor. The cases illustrate how recognition and understanding of spirometric loops allows for easy diagnosis of iatrogenic pneumothorax, incorrect ventilator settings, leaks in the system, kinked or partially obstructed endotracheal tube, and spontaneous breathing interfering with intermittent positive-pressure ventilation. The case series demonstrates the potential of spirometry to improve the quality and safety of anesthetic management, and, hence, its use can be recommended during intermittent positive-pressure ventilation and procedures in which interference with ventilation can be expected.
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Kouri, Andrew, Ronald J. Dandurand, Omar S. Usmani, and Chung-Wai Chow. "Exploring the 175-year history of spirometry and the vital lessons it can teach us today." European Respiratory Review 30, no. 162 (October 5, 2021): 210081. http://dx.doi.org/10.1183/16000617.0081-2021.
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175 years have elapsed since John Hutchinson introduced the world to his version of an apparatus that had been in development for nearly two centuries, the spirometer. Though he was not the first to build a device that sought to measure breathing and quantify the impact of disease and occupation on lung function, Hutchison coined the terms spirometer and vital capacity that are still in use today, securing his place in medical history. As Hutchinson envisioned, spirometry would become crucial to our growing knowledge of respiratory pathophysiology, from Tiffeneau and Pinelli's work on forced expiratory volumes, to Fry and Hyatt's description of the flow–volume curve. In the 20th century, standardization of spirometry further broadened its reach and prognostic potential. Today, spirometry is recognized as essential to respiratory disease diagnosis, management and research. However, controversy exists in some of its applications, uptake in primary care remains sub-optimal and there are concerns related to the way in which race is factored into interpretation. Moving forward, these failings must be addressed, and innovations like Internet-enabled portable spirometers may present novel opportunities. We must also consider the physiologic and practical limitations inherent to spirometry and further investigate complementary technologies such as respiratory oscillometry and other emerging technologies that assess lung function. Through an exploration of the storied history of spirometry, we can better contextualize its current landscape and appreciate the trends that have repeatedly arisen over time. This may help to improve our current use of spirometry and may allow us to anticipate the obstacles confronting emerging pulmonary function technologies.
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Hajare, Ruchita B., Raziya Nagarwala, Ashok Shyam, and Parag Sancheti. "Correlation between 6-minute walk distance and spirometry parameters in stable chronic obstructive pulmonary disease patients." International Journal of Research in Medical Sciences 7, no. 1 (December 26, 2018): 34. http://dx.doi.org/10.18203/2320-6012.ijrms20185359.
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Background: Six minute walk test (6MWT) is a sub-maximal exercise test, used as a clinical indicator of the functional capacity, in patients with cardiopulmonary diseases. It is simple, objective and reproducible test. The present study was designed to assess correlation of six minute walk test with spirometry parameters, in patients with chronic obstructive pulmonary disease.Methods: In this cross sectional study, fifty patients diagnosed with chronic obstructive pulmonary disease (GOLD criteria) coming to tertiary center were recruited according to inclusion and exclusion criteria. All patients underwent spirometric measurement. Spirometric indices including FEV1, FVC, FEV1/FVC and MVV were tested using computerized spirometer. 6MWT was performed following American Thoracic Society (ATS) guidelines. Percent (%) predicted 6MWD was calculated. Correlation between spirometry and 6MWT was assessed.Results: It was found that correlation between 6MWT and spirometry is statistically significant. There is significant strong positive correlation between percent predicted 6MWD and FEV1 (r=0.850 and p= <0.001), whereas there is significant moderate correlation between percent predicted 6MWD and FVC (r=0.554 and p= <0.001), FEV1/FVC (r=0.509 and p= <0.001) and MVV (r=0.615 and p= <0.001).Conclusions: In chronic obstructive pulmonary disease, percent predicted 6mwd significantly correlated with the spirometry parameters (FEV1, FVC, FEV1/FVC, and MVV). 6MWD decreases as there is decline in the pulmonary function. 6MWT can be a useful replacement of spirometry in assessment of severity of COPD.
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Farhadi, M., H. Ghanbari, F. Izadi, E. Amintehran, M. S. Eikani, and Y. Ghavami. "Role of spirometry in detection of nasal obstruction." Journal of Laryngology & Otology 127, no. 3 (January 23, 2013): 271–73. http://dx.doi.org/10.1017/s0022215112003283.
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AbstractBackground:A subjective feeling of nasal airflow obstruction is a common symptom. An objective method for quantitative measurement of nasal airflow has long been desired. Rhinomanometry and acoustic rhinometry have been developed for anatomical and physiological evaluation of nasal obstruction. This study was designed to determine the usefulness of a portable spirometer in assessing upper airway obstruction.Methods:One hundred and ninety-six patients were assessed with nasal inspiratory spirometry to determine nasal airflow. All patients also underwent paranasal sinus computed tomography to determine anatomical abnormalities. Spirometry was performed on each nostril separately.Results:Sensitivity and specificity levels were high. This portable and easy to use device may be useful in respiratory assessment. Correlation between anatomical obstructions and subjects' complaints was statistically significant (p < 0.001), but no definite correlation between septal deviation severity and spirometric values was found.Conclusion:Portable spirometry is an objective and useful method of evaluating nasal obstruction, but needs more investigation to establish a standardised test.
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Kuznetsova, Olga Yu, Dmitry V. Chentsov, Sofya P. Drovnina, and Karina V. Ovakimyan. "Problems of spirometry in the framework of the second stage of medical examination of the adult population." Russian Family Doctor 25, no. 4 (December 15, 2021): 15–22. http://dx.doi.org/10.17816/rfd79259.
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BACKGROUND: Spirometry is a method of studying the function of external respiration, which is widely used for the diagnosis of various bronchial obstructive diseases. This diagnostic method was included in the list of studies required for the second stage of medical examination of the adult population for the purpose of additional examination and clarification of the diagnosis. The correct organization of the study increases its effectiveness: it affects the quality of the conduct, on the result of which early diagnosis and timely appointment of treatment depends on the detection of bronchopulmonary disease.
AIM: To evaluate the organization of spirometry during the second stage of medical examination in real practice in outpatient medical organizations.
MATERIALS AND METHODS: The study involved 9 polyclinics selected randomly from the list of polyclinics and polyclinic departments in St. Petersburg, which participated in the medical examination of the adult population in 2020 (n = 97). The evaluation of the process of conducting a spirometric study, as well as the analysis of the dispensary records of patients who underwent spirometry, were carried out according to pre-developed checklists.
RESULTS: Among the medical organizations that took part in the study (n = 9), only in one polyclinic the prevention department was equipped with a spirometer. Employees of only four polyclinics (50%) had a certificate of training in spirometry or functional diagnostics. As part of the second stage of medical examination of the adult population, 251 spirometric studies were conducted, although there should have been much more, since the smoking factor in these polyclinics was established in 10,829 people according to the reporting form 131 Information on the medical examination of certain groups of the adult population for 2020.
CONCLUSIONS: The results obtained indicate a low efficiency of the organization of the spirometry procedure.
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Borges, Ritta de Cássia Canedo Oliveira, José Cerqueira Barros Júnior, Fabrício Borges Oliveira, Marisa Andrade Brunherotti, and Paulo Roberto Veiga Quemelo. "Evaluation of pulmonary function and respiratory symptoms in pyrochlore mine workers." Jornal Brasileiro de Pneumologia 42, no. 4 (August 2016): 279–85. http://dx.doi.org/10.1590/s1806-37562015000000221.
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ABSTRACT Objective: To identify respiratory symptoms and evaluate lung function in mine workers. Methods: This was a cross-sectional observational study involving production sector workers of a pyrochlore mining company. The subjects completed the British Medical Research Council questionnaire, which is designed to evaluate respiratory symptoms, occupational exposure factors, and smoking status. In addition, they underwent pulmonary function tests with a portable spirometer. Results: The study involved 147 workers (all male). The mean age was 41.37 ± 8.71 years, and the mean duration of occupational exposure was 12.26 ± 7.09 years. We found that 33 (22.44%) of the workers had respiratory symptoms and that 26 (17.69%) showed abnormalities in the spirometry results. However, we found that the spirometry results did not correlate significantly with the presence of respiratory symptoms or with the duration of occupational exposure. Conclusions: The frequencies of respiratory symptoms and spirometric changes were low when compared with those reported in other studies involving occupational exposure to dust. No significant associations were observed between respiratory symptoms and spirometry results.
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Ponnathota, Vindhya, Sujatha Gogineni, and Silpa Kasireddy. "Evaluation of efficacy and utility of spirometry data in elderly (>65years) individuals with or without lung diseases." International Journal of Advances in Medicine 6, no. 1 (January 23, 2019): 1. http://dx.doi.org/10.18203/2349-3933.ijam20185109.
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Background: Spirometry is an important diagnostic monitoring tool for various lung disorders. Ventilatory function can be assessed by spirometry. Also, we can find whether it is obstructive or restrictive disease. An appropriate technique is essential to ensure accurate results. Spirometry requires proper understanding and cooperation of the patient while doing the test. The objective was to evaluate the efficacy and utility of spirometry data in elderly (>65years) individuals with or without lung diseases.Methods: A hospital based cross sectional study was carried out among 199 subjects who were then divided into 100 controls and 99 cases. Spirometry was carried out among all subjects. The values of spirometry were compared among cases and controls as well as across age and sex groups. Student’s t-test was applied.Results: After studying the spirometric data in elderly population with or without lung disease, there was significant difference between cases and controls as far as pack years of smoking was concerned. There was significant difference in FEV1, FVC and FEV1/FVC between the cases and controls. As the age increased the spirometric values decreased. The spirometry was normal in controls in majority compared to none in cases.Conclusions: Spirometry should be used by all primary care and specialist physicians even in elderly population.
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Enright, P. "Provide GPs with spirometry, not spirometers." Thorax 63, no. 5 (May 1, 2008): 387–88. http://dx.doi.org/10.1136/thx.2007.092916.
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Patil, Pratibha M., and Manisha Chavan. "Study on to assess pulmonary function test changes in asthmatic child using spirometry and its diagnostic and prognostic value." International Journal of Contemporary Pediatrics 4, no. 3 (April 25, 2017): 762. http://dx.doi.org/10.18203/2349-3291.ijcp20171459.
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Background: Asthma is a disease that has become increasingly common over the last century making it now one of the commonest chronic disorders in the world. Spirometric lung function tests are playing a key role in the diagnosis and management of asthma in children. Considering the usefulness of spirometer in the diagnosis of asthma and scarcity of the literature regarding the role of spirometer in the diagnosis of Asthma especially in Indian context, the present study was undertaken to assess pulmonary function test changes in asthmatic child using spirometry and its diagnostic and prognostic value.Methods: The present study was conducted at Department of Paediatrics, Ashwini Rural Medical College, Hospital and Research Centre, Kumbhari during the study period of 2015 to 2016. Children presenting symptoms suggestive of asthma were included in the study.Results: In the present study, the commonest presentations included cough, breathing difficulty and recurrent wheeze in all the children (100%) followed by chest tightness (23%) and fever (11%). In the present study, the clinical and spirometry diagnosis of moderate asthma showed total positive correlation (100%). The positive correlation of mild persistent and intermittent asthma was limited to 97.30% and 91.18%. Severe persistent asthma positively correlated in 76.77%.Conclusions: It may be concluded that, the spirometry is not only helps to diagnose the asthma accurately, but also helps in assessing the severity which has the key role in the successful management.
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Shkundin, Semyon, and Valentina Rumyantseva. "Acoustic devices for breathing investigations." MATEC Web of Conferences 211 (2018): 04004. http://dx.doi.org/10.1051/matecconf/201821104004.
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The problem of spirometry control in medicine and medical engineering still remains urgent. The necessity of getting more and more information from spirometry investigations imposes more and more stringent requirements for spirometers, volumeters and bodypletizmographs, first of all, to the primary spiroflow transdusers. Practice shows that these requirements cannot be met by improving devices which use conventional spirometric principles. The new acoustic means for pulsating air-gas flow rate measurement has been created in Russia and is described in the paper. The main feature is special air-metric channel, supplied with ceramics electroacoustic transducers. The principle of its operation is based on the dependence of the acoustic vibrations arriving at the receiver velocity upon the air-gas flow rate. The device does not disturb the air dynamic structure of the flow, has no inertia or moving elements and unsurpassed sensitivity and precision.
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Lin, Ching-Hsiung, Shih-Lung Cheng, Hao-Chien Wang, Wu-Huei Hsu, Kang-Yun Lee, Diahn-Warng Perng, Hen-I. Lin, et al. "Novel App-Based Portable Spirometer for the Early Detection of COPD." Diagnostics 11, no. 5 (April 27, 2021): 785. http://dx.doi.org/10.3390/diagnostics11050785.
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Chronic obstructive pulmonary disease (COPD) is preventable and treatable. However, many patients remain undiagnosed and untreated due to the underutilization or unavailability of spirometers. Accordingly, we used Spirobank Smart, an app-based spirometer, for facilitating the early detection of COPD in outpatient clinics. This prospective study recruited individuals who were at risk of COPD (i.e., with age of ≥40 years, ≥10 pack-years of smoking, and at least one respiratory symptoms) but had no previous COPD diagnosis. Eligible participants were examined with Spirobank Smart and then underwent confirmatory spirometry (performed using a diagnostic spirometer), regardless of their Spirobank Smart test results. COPD was defined and confirmed using the postbronchodilator forced expiratory volume in 1 s/forced vital capacity values of <0.70 as measured by confirmatory spirometry. A total of 767 participants were enrolled and examined using Spirobank Smart; 370 participants (94.3% men, mean age of 60.9 years and mean 42.6 pack-years of smoking) underwent confirmatory spirometry. Confirmatory spirometry identified COPD in 103 participants (27.8%). At the optimal cutoff point of 0.74 that was determined using Spirobank Smart for COPD diagnosis, the area under the receiver operating characteristic was 0.903 (95% confidence interval (CI) = 0.860–0.947). Multivariate logistic regression revealed that participants who have an FEV1/FVC ratio of <74% that was determined using Spirobank Smart (odds ratio (OR) = 58.58, 95% CI = 27.29–125.75) and old age (OR = 3.23, 95% CI = 1.04–10.07 for 60 ≤ age < 65; OR = 5.82, 95% CI = 2.22–15.27 for age ≥ 65) had a higher risk of COPD. The Spirobank Smart is a simple and adequate tool for early COPD detection in outpatient clinics. Early diagnosis and appropriate therapy based on GOLD guidelines can positively influence respiratory symptoms and quality of life.
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Almirall, José, and Paul Bégin. "Exclusion Spirometry: An Initiative to Increase Lung Function Assessment in Primary Care." Canadian Respiratory Journal 11, no. 3 (2004): 195–96. http://dx.doi.org/10.1155/2004/295357.
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Ongoing spirometry quality standards are difficult to bring into the daily routine of general practice. As a result, spirometry is rarely performed by primary care physicians. A new approach is proposed: exclusion spirometry. Acceptable and reproducible results are sought. However, the goal of the test is to try to reach values within normal limits, even if results do not reach quality standards. Normal results would be sufficient to exclude respiratory impairment, except in asthma. Abnormal results would require further testing in a diagnostic spirometry laboratory. The aim of the initiative is to enhance the compliance of general practitioners in using spirometers for screening.
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Onisor, Maria Octavia, and Steve Turner. "Routine FEV1measurement is essential in diagnosis and monitoring of childhood asthma: myth or maxim?" Breathe 19, no. 2 (June 2023): 230048. http://dx.doi.org/10.1183/20734735.0048-2023.
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Childhood asthma is a common condition in children. This review describes the evidence from seven asthma guidelines for using spirometry in the diagnosis and monitoring of childhood asthma. All guidelines recommend spirometry as the primary test to be performed for diagnosing asthma in children aged >5 years. Spirometry is often normal in children with asthma. Guidelines are not consistent with respect to whether forced expiratory volume in 1 s (FEV1) or FEV1/forced vital capacity (FVC) should be measured, or their threshold for “abnormal” spirometry, and we describe the sensitivity and specificity for these different cut-offs. The role of spirometry in monitoring asthma is less clear in the guidelines, and some do not suggest spirometry should be done. There is no consensus on what spirometric measurement should be used, how often it should be measured and what is a minimum clinically important change in spirometry. The role of spirometry in diagnosing asthma is more clearly established when compared to its role in monitoring asthma. The potential of spirometry to aid decision making for asthma diagnosis and monitoring in children remains to be fully evaluated.Educational aimsTo provide knowledge of the commonly used guidelines for asthma diagnosis and management.To give insight into the opportunities and challenges in using spirometry to diagnose and monitor asthma in children.To provide an understanding of the precision of spirometry for diagnosing asthma.
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Ilić, Miroslav, Jovan Javorac, Ana Milenković, Dejan Živanović, Dejan Miljković, Svetlana Kašiković Lečić, Nevena Savić, et al. "Home-Based Spirometry in Patients with Interstitial Lung Diseases: A Real-Life Pilot “FACT” Study from Serbia." Journal of Personalized Medicine 13, no. 5 (May 5, 2023): 793. http://dx.doi.org/10.3390/jpm13050793.
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(1) Background: home-based spirometry, as a form of telemedicine in pulmonology, was previously successfully implemented in clinical practice in developed countries. However, experiences from developing countries are lacking. The aim of this study was to assess the reliability and feasibility of home-based spirometry in patients with interstitial lung diseases from Serbia. (2) Methods: 10 patients were given a personal hand-held spirometer with operating instructions and asked to perform daily domiciliary spirometry for the next 24 weeks. The K-BILD questionnaire was used to assess patients’ quality of life, while the questionnaire designed specifically for this study was used to assess their attitudes toward and satisfaction with domiciliary spirometry. (3) Results: there was a significant positive correlation between office- and home-based spirometry at the beginning (r = 0.946; p < 0.001) and end of the study (r = 0.719; p = 0.019). The compliance rate was nearly 70%. The domiciliary spirometry did not affect patients’ overall quality of life or anxiety levels, as measured via different domains of the K-BILD. Patients expressed positive experiences and high satisfaction with the home spirometry program. (4) Conclusions: home-based spirometry may represent a reliable form of spirometry, exploited in routine clinical practice; however, additional research in developing countries with a larger sample size is required.
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Chaudhary, Anshu, Satyam Khare, Shilpi Jain, Alok Tripathi, and Pratisha Mishra. "Association of six minute walk test with spirometry parameters in patients with chronic obstructive pulmonary diseases." Journal of Anatomical Sciences 31, no. 1 (June 2, 2023): 32–39. http://dx.doi.org/10.46351/jas.v31i1pp32-39.
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Introduction: A significant health issue on a global scale is chronic obstructive pulmonary disease (COPD). The gold standard for determining a COPD diagnosis and severity is spirometry. The patient's functional ability is evaluated using the 6MWT, a basic, reliable test. It aids in prognostic prediction and management. The purpose of this study was to determine whether the results of the 6MWT correlated with the patient's clinical and spirometric characteristics. The study also examined whether the six-minute walk distance (6MWD) may serve as a substitute for spirometry in determining the severity of COPD in settings with scarce resources. Materials and methods: This cross-sectional study was conducted in a hospital. Following the application of inclusion and exclusion criteria, 70 consecutive patients with proven COPD (according to GOLD recommendations) were included in the study. Pre- and post-bronchodilator spirometry tests were used to gauge severity. According to ATS recommendations, 6MWT was then performed and noted. The 6MWT results were associated with the patients' spirometric and clinical data. Results: It was found that, there was a statistically positive and highly significant (p<0.01) correlation between 6minute walk test values and % predicted FEV1, FVC and FEV1/FVC ratio of spirometry in COPD study participants. Conclusions: This study found a significant positive association between patients’ spirometry parameters (%FEV1, FVC, FEV/FVC) and 6MWD. Thus, 6MWT can be used to determine the severity of COPD. Keywords: Chronic Obstructive Pulmonary Disease, 6-minute walk test, Spirometry
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Fung, Tan, Duong, Schivo, Littlefield, Delplanque, Davis, and Kenyon. "Design and Benchmark Testing for Open Architecture Reconfigurable Mobile Spirometer and Exhaled Breath Monitor with GPS and Data Telemetry." Diagnostics 9, no. 3 (August 21, 2019): 100. http://dx.doi.org/10.3390/diagnostics9030100.
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Portable and wearable medical instruments are poised to play an increasingly important role in health monitoring. Mobile spirometers are available commercially, and are used to monitor patients with advanced lung disease. However, these commercial monitors have a fixed product architecture determined by the manufacturer, and researchers cannot easily experiment with new configurations or add additional novel sensors over time. Spirometry combined with exhaled breath metabolite monitoring has the potential to transform healthcare and improve clinical management strategies. This research provides an updated design and benchmark testing for a flexible, portable, open access architecture to measure lung function, using common Arduino/Android microcontroller technologies. To demonstrate the feasibility and the proof-of-concept of this easily-adaptable platform technology, we had 43 subjects (healthy, and those with lung diseases) perform three spirometry maneuvers using our reconfigurable device and an office-based commercial spirometer. We found that our system compared favorably with the traditional spirometer, with high accuracy and agreement for forced expiratory volume in 1 s (FEV1) and forced vital capacity (FVC), and gas measurements were feasible. This provides an adaptable/reconfigurable open access “personalized medicine” platform for researchers and patients, and new chemical sensors and other modular instrumentation can extend the flexibility of the device in the future.
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Joo, Sunghee, Kyeongjin Lee, and Changho Song. "A Comparative Study of Smartphone Game with Spirometry for Pulmonary Function Assessment in Stroke Patients." BioMed Research International 2018 (November 4, 2018): 1–6. http://dx.doi.org/10.1155/2018/2439312.
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Background. The monitoring and rehabilitation of pulmonary function can be immensely important for long-term performance of daily life activities in stroke patients. In recent times, smartphone game-based assessment (SGA) has been gaining in popularity as an alternative to laboratory assessments. Hence, the aims of this study were (1) to quantify the reliability and validity of SGA for pulmonary function and (2) to assess the validity of SGA in comparison to spirometry. Materials/Methods. Thirty-four stroke subjects (age = 49.24 ± 8.25 years) performed spirometry and the smartphone game on different days. Spirometric values were obtained using a spirometer (SP-1, Schiller, USA). A breathing game application (Breathing+ package, Breathing Labs, Slovenia) was used to obtain the values for the SGA of pulmonary function. The concurrent validity was determined by comparing data collected from the 2 systems, and the reliability was determined by comparing data collected from 3 sessions of using the breathing game on a smartphone. Results. All parameters demonstrated excellent agreement with intraclass correlation coefficients (ICC (2.1)) values for reliability and concurrent validity. Conclusion. We compared the relationship between the SGA and the spirometry as certified pulmonary function test. The SGA data were statistically significant and reliable for pulmonary function assessment in stroke patients. It will therefore be useful during rehabilitation to improve pulmonary function and clinical monitoring in stroke patients.
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Prata, Tarciane Aline, Eliane Mancuzo, Carlos Alberto de Castro Pereira, Silvana Spíndola de Miranda, Larissa Voss Sadigursky, Camila Hirotsu, and Sérgio Tufik. "Spirometry reference values for Black adults in Brazil." Jornal Brasileiro de Pneumologia 44, no. 6 (December 2018): 449–55. http://dx.doi.org/10.1590/s1806-37562018000000082.
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ABSTRACT Objective: To derive reference equations for spirometry in healthy Black adult never smokers in Brazil, comparing them with those published in 2007 for White adults in the country. Methods: The examinations followed the standards recommended by the Brazilian Thoracic Association, and the spirometers employed met the technical requirements set forth in the guidelines of the American Thoracic Society/European Respiratory Society. The lower limits were defined as the 5th percentile of the residuals. Results: Reference equations and limits were derived from a sample of 120 men and 124 women, inhabitants of eight Brazilian cities, all of whom were evaluated with a flow spirometer. The predicted values for FVC, FEV1, FEV1/FVC ratio, and PEF were better described by linear equations, whereas the flows were better described by logarithmic equations. The FEV1 and FVC reference values derived for Black adults were significantly lower than were those previously derived for White adults, regardless of gender. Conclusions: The fact that the predicted spirometry values derived for the population of Black adults in Brazil were lower than those previously derived for White adults in the country justifies the use of an equation specific to the former population.
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Xu, Matthew, John D. Brannan, Vincent Ho, and Jerry Zhou. "Mechanism of spirometry associated gastro-esophageal reflux in individuals undergoing esophageal assessment." PLOS ONE 18, no. 9 (September 13, 2023): e0291445. http://dx.doi.org/10.1371/journal.pone.0291445.
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Persistent variability observed during spirometry, even when technical and personal factors are controlled, has prompted interest in uncovering its underlying mechanisms. Notably, our prior investigations have unveiled that spirometry has the potential to trigger gastro-esophageal reflux in a susceptible population. This current study embarks on elucidating the intricate mechanisms orchestrating reflux induced by spirometry. To achieve this, we enlisted twenty-four (24) participants exhibiting reflux symptoms for esophageal assessment. These participants underwent two sets of spirometry sessions, interspersed with a 10-minute intermission, during which we closely scrutinized fluid flow dynamics and esophageal function through high-resolution impedance esophageal manometry. Our comprehensive evaluation juxtaposed baseline manometric parameters against their equivalents during the initial spirometry session, the intervening rest period, and the subsequent spirometry session. Remarkably, impedance values, serving as a metric for fluid quantity, exhibited a substantial elevation during each spirometry session and the ensuing recovery interval in the pan-esophageal and hypopharyngeal regions when compared to baseline levels. Additionally, the resting pressure of the lower esophageal sphincter experienced a noteworthy reduction subsequent to the first bout of spirometry (13.6 ± 8.8 mmHg) in comparison to the baseline pressure (22.5 ± 13.3 mmHg). Furthermore, our observations unveiled a decline in spirometric parameters—FEV1 (0.14 ± 0.24 L, P = 0.042) and PEFR (0.67 L/s, P = 0.34)—during the second spirometry session when contrasted with the first session. Collectively, our study underscores the compelling evidence that spirometry maneuvers can elicit gastro-esophageal reflux by eliciting intra-esophageal pressure differentials and inducing temporary relaxation of the lower esophageal sphincter.
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Schnieders, Elena, Elyesa Ünal, Volker Winkler, Peter Dambach, Valérie R. Louis, Olaf Horstick, Florian Neuhann, and Andreas Deckert. "Performance of alternative COPD case-finding tools: a systematic review and meta-analysis." European Respiratory Review 30, no. 160 (May 25, 2021): 200350. http://dx.doi.org/10.1183/16000617.0350-2020.
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RationaleGuidelines recommend pre-/post-bronchodilator spirometry for diagnosing COPD, but resource constraints limit the availability of spirometry in primary care in low- and middle-income countries. Although spirometry is the diagnostic gold standard, we shall assess alternative tools for settings without spirometry.MethodsA systematic literature review and meta-analysis was conducted, utilising Cochrane, CINAHL, Google Scholar, PubMed and Web of Science (search cut-off was May 01, 2020). Published studies comparing the accuracy of diagnostic tools for COPD with post-bronchodilator spirometry were considered. Studies without sensitivity/specificity data, without a separate validation sample and outside of primary care were excluded. Sensitivity, specificity and area under the curve (AUC) were assessed.ResultsOf 7578 studies, 24 were included (14 635 participants). Hand devices yielded a larger AUC than questionnaires. The meta-analysis included 17 studies and the overall AUC of micro-spirometers (0.84, 95% CI 0.80–0.89) was larger when compared to the COPD population screener (COPD-PS) questionnaire (0.77, 95% CI 0.63–0.85) and the COPD diagnostic questionnaire (CDQ) (0.72, 95% CI 0.64–0.78). However, only the difference between micro-spirometers and the CDQ was significant.ConclusionsThe CDQ and the COPD-PS questionnaire were approximately equally accurate tools. Questionnaires ensured testing of symptomatic patients, but micro-spirometers were more accurate. A combination could increase accuracy but was not evaluated in the meta-analysis.
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Kumar, Prasanna, and Mohd Asif Hussain. "The Effect of Glycemic Control on Spirometric Variables in Patients of Type 2 Diabetes Mellitus." Indian Journal of Emergency Medicine 7, no. 1 (March 15, 2021): 9–13. http://dx.doi.org/10.21088/ijem.2395.311x.7121.1.
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Introduction: Pulmonary function tests (PFTs) is a generic term used to indicate a battery of studies or manoeuvres that may be performed using standardized equipment to measure lung function. PFTs can include simple screening spirometry, formal lung volume measurement, diffusing capacity for carbon monoxide, and arterial blood gases. These studies may collectively be referred to as a complete pulmonary function survey. Methodology: Information was collected through a pre tested and structured proforma for each patient Qualifying patients will be undergoing detailed history, clinical examination, routine investigations like FBS, PPBS, HBA1c, fundus evaluation and spirometric evaluation using a easy one flow spirometer. Glycemic control is taken as HBA1C below 7.5 and HBA1C more than 7.5 is considered as uncontrolled sugars Diabetic patients of different durations are selected Using criteria laid down. Results: In our study, 2(10%)patients with HBA1C < 7.5 had restrictive pattern and out of 26 patients with HBA1C >7.5, restrictive pattern was seen in 21 patients in group 2. Conclusion: Spirometry is the most commonly used lung function screening study. It generally should be the clinicians first option.
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Pokhaznikova, M. A., E. A. Andreeva, and O. Yu Kuznetsova. "An experience of performing spirometry by trained general practitioners." Medical alphabet, no. 25 (October 26, 2020): 34–36. http://dx.doi.org/10.33667/2078-5631-2020-25-34-36.
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The article discusses the experience of teaching and conducting spirometry of general practitioners as part of the RESPECT study (RESearch on the PrEvalence and the diagnosis of COPD and its Tobacco-related aetiology). A total of 33 trained in spirometry general practitioners performed a study of 3119 patients. Quality criteria met 84.1% of spirometric studies. The analysis of the most common mistakes made by doctors during the forced expiratory maneuver is included. The most frequent errors were expiration exhalation of less than 6s (54%), non-maximal effort throughout the test and lack of reproducibility (11.3%). Independent predictors of poor spirogram quality were male gender, obstruction (FEV1 /FVC<0.7), and the center where the study was performed. The number of good-quality spirograms ranged from 96.1% (95% CI 83.2–110.4) to 59.8% (95% CI 49.6–71.4) depending on the center. Subsequently, an analysis of the reasons behind the poor quality of research in individual centers was conducted and the identified shortcomings were eliminated. The poor quality of the spirograms was associated either with the errors of the doctors who undertook the study or with the technical malfunctions of the spirometer.
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Sonawane, Nilesh S., Sanjay M. Gour, Radha P. Munje, and Vandana P. B. "Spirometric evaluation in patients with allergic rhinitis- emphasising need of early diagnosis: a tertiary care experience from Central India." International Journal of Advances in Medicine 5, no. 6 (November 22, 2018): 1460. http://dx.doi.org/10.18203/2349-3933.ijam20184757.
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Background: Allergic rhinitis is predecessor of Bronchial asthma in most of the cases. Present study was aimed to understand the prevalence of the impaired spirometric changes in patients with allergic rhinitis and to find association with various demographic factors, sputum eosinophilia and eosinophil count in the blood with the impaired Spirometry of these patients.Methods: Authors conducted a cross sectional study among the patients of allergic rhinitis presented to us in our outpatient department from January 2016 to July 2017. The patient’s with allergic rhinitis either newly diagnosed or already on treatment were included in the study. Standard guidelines as given by ARIA were followed in defining a case of allergic rhinitis. The detailed clinical history was taken, and examination was performed of all the patients and documented. Spirometric evaluation was done using the standard guidelines by a desktop based Spirometry.Results: The mean age of the study subjects was 30.22±13.13 years with male: female ratio of 0.96. The mean duration of the allergic rhinitis in our study was 3.86±3.34years. The most common complaint was itching sensation of nose followed by paroxysmal sneezing and watering of eyes. About 22.15% of the study subjects have impaired Spirometry. Upon bronchodilator therapy 30% of the study subjects had significant reversibility in FEV1.Conclusions: About ¼ of present study subjects had impaired Spirometry and about 30% of them had reversibility after bronchodilator therapy. Authors also found that the higher age study subjects had significantly higher impaired Spirometry; persistent allergic rhinitis patients had higher impairment of Spirometry and the patients with higher the sputum eosinophilia had higher impairment in Spirometry.
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Kaur, Akashdeep, C. Vasantha Kalyani, and Kusum K. "Effect of Incentive Spirometry on Recovery of Post-Operative Patients: Pre Experimental Study." Journal Of Nursing Practice 3, no. 2 (April 29, 2020): 220–25. http://dx.doi.org/10.30994/jnp.v3i2.90.
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Background: Post-operative care is management of patients after any surgery. The main goal of post-operative care is to prevent complications i.e. atelectasis and infection. The other objective is early healing of the surgical incision and return of patient to a state of health. About 17% to 88% of people in postoperative duration will have decreased lung volumes. This decreased lung volume problem can be solved with use of incentive spirometry in postoperative period on Day 1. Incentive spirometer is perioperative respiratory therapy given to postoperative patients to improve lung volume of patients and hasten recovery of patients also.Purpose: This study aimed to identify effect of Incentive spirometry on postoperative patient’s recovery.Methods: It was pre-experimental study with pretest- posttest design only, which was done on post-operative patients at All India Institute of Medical Sciences (AIIMS), Rishikesh.Results: Majority (52 %) of participants were 41 to 50 years age group. Male and female ratio for participants were 46:54. Paired ‘t’ test p value i.e. 0.00* with CI [0.72, 1.03] showed that on Pretest and Day 3 Performance level on incentive spirometry of participants showed a significant value, which indicate that spirometer enhance recovery of post-operative patients by increasing their lung volumes.Conclusions: This study revealed that incentive spirometry is effective in improving of pulmonary function among post-operative patients, which further improves blood circulation and hasten early recovery of surgical wound. This spirometry should be integral part of Post-operative care. All nurses who are involved in Postoperative units should encourage patients to do it on regular basis and document it as a vital sign. Good compliance to incentive spirometry can improve better outcome of patient’s
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Leocádio, Rodolfo Rocha Vieira, Alan Kardek Rêgo Segundo, and Cibelle Ferreira Louzada. "A Sensor for Spirometric Feedback in Ventilation Maneuvers during Cardiopulmonary Resuscitation Training." Sensors 19, no. 23 (November 21, 2019): 5095. http://dx.doi.org/10.3390/s19235095.
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This work proposes adapting an existing sensor and embedding it on mannequins used in cardiopulmonary resuscitation (CPR) training to accurately measure the amount of air supplied to the lungs during ventilation. Mathematical modeling, calibration, and validation of the sensor along with metrology, statistical inference, and spirometry techniques were used as a base for aquiring scientific knowledge of the system. The system directly measures the variable of interest (air volume) and refers to spirometric techniques in the elaboration of its model. This improves the realism of the dummies during the CPR training, because it estimates, in real-time, not only the volume of air entering in the lungs but also the Forced Vital Capacity (FVC), Forced Expiratory Volume (FEVt) and Medium Forced Expiratory Flow (FEF20–75%). The validation of the sensor achieved results that address the requirements for this application, that is, the error below 3.4% of full scale. During the spirometric tests, the system presented the measurement results of (305 ± 22, 450 ± 23, 603 ± 24, 751 ± 26, 922 ± 27, 1021 ± 30, 1182 ± 33, 1326 ± 36, 1476 ± 37, 1618 ± 45 and 1786 ± 56) × 10−6 m3 for reference values of (300, 450, 600, 750, 900, 1050, 1200, 1350, 1500, 1650 and 1800) × 10−6 m3, respectively. Therefore, considering the spirometry and pressure boundary conditions of the manikin lungs, the system achieves the objective of simulating valid spirometric data for debriefings, that is, there is an agreement between the measurement results when compared to the signal generated by a commercial spirometer (Koko brand). The main advantages that this work presents in relation to the sensors commonly used for this purpose are: (i) the reduced cost, which makes it possible, for the first time, to use a respiratory volume sensor in medical simulators or training dummies; (ii) the direct measurement of air entering the lung using a noninvasive method, which makes it possible to use spirometry parameters to characterize simulated human respiration during the CPR training; and (iii) the measurement of spirometric parameters (FVC, FEVt, and FEF20–75%), in real-time, during the CPR training, to achieve optimal ventilation performance. Therefore, the system developed in this work addresses the minimum requirements for the practice of ventilation in the CPR maneuvers and has great potential in several future applications.
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Patra, Sucharita, and Rajesh Khyalappa. "A correlation of the spirometric outcomes of follow up patients of COVID-19 pneumonia with their admission time computed tomography severity score on high resolution computed tomography thorax." International Journal of Research in Medical Sciences 11, no. 2 (January 25, 2023): 558–61. http://dx.doi.org/10.18203/2320-6012.ijrms20230163.
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Background: Coronavirus disease (COVID-19) is an infectious disease caused by the SARS-CoV-2 virus. Most people who fall sick with COVID-19 experience mild to moderate symptoms and recover without any special treatment. However, some become seriously ill and require serious medical attention. The respiratory system has been the main organ affected by COVID-19 along with other organs such as heart, kidneys and liver. Spirometry is the most common of the pulmonary function tests. Spirometry is helpful in assessing respiratory outcomes that identify conditions such as asthma, pulmonary fibrosis, cystic fibrosis, and COPD. Methods: A total of 100 COVID-19 pneumonia patients coming for follow-up 6-10 weeks post-discharge in OPD at Department of General Medicine, Dr. D. Y. Patil Medical College Hospital and Research Institute, Kolhapur, Maharashtra, satisfying the inclusion criteria and exclusion criteria were enrolled. High resolution computed tomography (HRCT) thorax reports during their admission were collected and Computed tomography severity score (CTSS) was noted. Their spirometry was done and pattern of spirometric outcome noted. Admission-time CTSS and spirometric outcome were correlated. Results: In majority of the patients, CT severity score during course of illness had strong correlation with spirometric outcome after 6 weeks of follow up and the association was statistically significant. Conclusions: CT severity score during course of illness had strong correlation with spirometry findings after 6 weeks of follow up. Higher age and higher HRCT score are good predictors for impaired pulmonary function after discharge.
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Kameneva, M. Yu, L. D. Kiryukhina, and P. V. Struchkov. "Updated national guidelines for spirometry. Part 1. Test rules and quality criterias." Medical alphabet 1, no. 22 (November 8, 2023): 7–18. http://dx.doi.org/10.33667/2078-5631-2023-22-7-18.
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Improved approaches to quality assurance have led to the need to update the technical standards of spirometry taking into account modern technical capabilities. The aim of the study is to present updated recommendations on spirometry with explanations and additions that are important for everyday work in practical healthcare. Analysis of documents on technical standards of spirometry developed by an joint task force of specialists with expertise in conducting and analyzing lung function tests and ensuring laboratory quality, appointed by the Russian Respiratory Society, the Russian Association of Functional Diagnostics Specialists, the Russian Scientific Medical Society of Therapists, as well as a joint group of the American Thoracic Society and the European Respiratory Society. The 1st part presents sections on indications and contraindications to spirometry; technical conditions of the procedure, including infection control; methods of spirometry; describes the main indicators and criteria for the quality of the study. The implementation of the presented standards and consensus recommendations for clinicians, operators and researchers is necessary for improving the accuracy of spirometric measurements and the patient experience.
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Lopata, V. A., YU S. Sinekop, and M.-A. A. El Shebakh. "Algorithm and calibration procedure in software spirometric equipment." Electronics and Communications 16, no. 2 (March 28, 2011): 126–29. http://dx.doi.org/10.20535/2312-1807.2011.16.2.268327.
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KL, Bansal, Bansal SS, Bansal S, and Sahay S. "Prevalence of preserved ratio impaired spirometry (PRISM) in patients undergoing spirometry in a medical college hospital." Journal of Medical and Scientific Research 11, no. 4 (October 2, 2023): 296–300. http://dx.doi.org/10.17727/jmsr.2023/11-55.
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Background: Many patients come with respiratory symptoms of cough, expectoration and shortness of breath. They also exhibit history of risk factors like smoking etc. but on spirometry they do not meet spirometric criteria of chronic obstructive pulmonary disease (COPD). GOLD 2023 updates have considered such patients in the category of pre-COPD and preserved ratio impaired spirometry (PRISm) and advised to treat and follow these patients and try to prevent them from progressing to COPD. With this objective we tried to look for PRISm and its characteristics in our area. Material and methods: We analyzed the spirometric pattern of all the patients who underwent spirometry in our institution (GS Medical College & Hospital, Pilkhuwa) from January 2022 to December 2022. After applying inclusion and exclusion criteria, the patients were divided into three groups: (I) Normal Group: Patients having post bronchodilator FEV1/FVC ratio ≥ 0.7 and normal FEV1 and FVC. (II) PRISm Group: Patients having post bronchodilator FEV1/FVC ratio ≥ 0.7 but decreased FEV1 (< 80 %) and / or FVC (< 80 %). (III) Unrevealed COPD Group: Patients having post bronchodilator FEV1/FVC ratio < 0.7 irrespective of FEV1 and FVC. Data observed was compared among various groups and analyzed for various parameters. Results: A total of 986 patients underwent spirometry between 1st January 2022 and 31st December 2022. Of this, 302 patients were not considered for study because of exclusion criteria. 684 patients were considered for the study, of whom 261 (38.16%) had normal spirometry, 207 (30.26%) were in the PRISm group and 216 (31.58%) were found to have unrevealed COPD. Conclusion: Occurrence of PRISm is quite high (30.26%) in patients undergoing spirometry for various reasons in our area. Higher age and higher BMI may have contributed to the observations. Additionally, a considerable number of patients (31.58%) were found to have unrevealed COPD. Another finding is that smoking history is seen in more than 70% of male subjects in both PRISm and unrevealed COPD groups. However, the results need confirmation in more studies from different geographical areas. Keywords: spirometry; PRISm; COPD; pulmonary disease
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Aslam, Waqas, M. Zubair Ashraf, M. Saqib Saeed, and Fariha Salman. "Spirometric Values of petrol pump workers of Lahore - A cross sectional study." Pakistan Journal of Medical and Health Sciences 15, no. 7 (July 26, 2021): 1614–16. http://dx.doi.org/10.53350/pjmhs211571614.
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Background: Petrol pump workers are exposed to air pollution and fumes of petrol and diesel that may lead to poor lung function followed by chronic diseases, where the city is highly polluted. Aim: To determine lung functioning capacity by spirometry among petrol pump workers Methods: A cross sectional study was designed and conducted in the pulmonology department of Mayo, hospital Lahore. Two seventy five (275) subjects were enrolled in the study after fulfilling the inclusion/exclusion criteria and giving informed consent by consecutive sampling. Information like name, age, weight, height, duration of working was recorded. Spirometry was performed to calculate FEV1, FVC and FEV1/FVC ratio. Data was entered and analyzed by statistical software SPSS version 23. Mean and standard deviation of age, height, weight, and work duration, Spirometric values for lung functions (FEV1, FVC and FEV1/FVC Ratio) were calculated. Data was divided into groups by age and work duration and spirometric values for lung functions were compared in these groups. T test & Pearson correlation was used for analysis and p value less than 0.05 was considered significant. Results: Participant age was 28.75±6.89.FEV1 was2.35±0.44, FVC 3.18±0.66 and FVC 74.91+9.40. FEV1 & FEV1/FVC ratio were significantly different (p<0.05) in age groups(<30, ≥30) & work duration groups(<8, ≥8yeras). Negative Correlation was found between work duration & lung functions (FEV1, FEV1/FVC ratio). Conclusion: Spirometric values were lower in petrol pump workers. Age and working duration further affects lung function of petrol pump workers. Keywords: FVC, FEV1, Spirometer, Petrol Pump Workers, Pulmonology
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Aslam, Waqas, M. Zubair Ashraf, M. Saqib Saeed, and Fariha Salman. "Spirometric Values of petrol pump workers of Lahore: A cross sectional study." Pakistan Journal of Medical and Health Sciences 15, no. 8 (August 26, 2021): 1935–37. http://dx.doi.org/10.53350/pjmhs211581935.
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Background: Petrol pump workers are exposed to air pollution and fumes of petrol and diesel that may lead to poor lung function followed by chronic diseases, where the city is highly polluted. Aim: To determine lung functioning capacity by spirometry among petrol pump workers Methods: A cross sectional study was designed and conducted in the pulmonology department of Mayo, hospital Lahore. Two seventy five (275) subjects were enrolled in the study after fulfilling the inclusion/exclusion criteria and giving informed consent by consecutive sampling. Information like name, age, weight, height, duration of working was recorded. Spirometry was performed to calculate FEV1, FVC and FEV1/FVC ratio. Data was entered and analyzed by SPSS version 23. Mean and standard deviation of age, height, weight, and work duration, Spirometric values for lung functions (FEV1, FVC and FEV1/FVC Ratio) were calculated. Data was divided into groups by age and work duration and spirometric values for lung functions were compared in these groups. T test & Pearson correlation was used for analysis and p value less than 0.05 was considered significant. Results: Participant age was 28.75±6.89.FEV1 was2.35±0.44, FVC 3.18±0.66 and FVC 74.91+9.40. FEV1 & FEV1/FVC ratio were significantly different (p<0.05) in age groups (<30, ≥30) & work duration groups(<8, ≥8yeras). Negative Correlation was found between work duration & lung functions (FEV1, FEV1/FVC ratio). Conclusion: Spirometric values were lower in petrol pump workers. Age and working duration further affects lung function of petrol pump workers. Keywords: FVC, FEV1, Spirometer, Petrol Pump Workers, Pulmonology
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Raillard, Mathieu, Olivier Levionnois, and Martina Mosing. "A Survey on the Use of Spirometry in Small Animal Anaesthesia and Critical Care." Animals 12, no. 3 (January 19, 2022): 239. http://dx.doi.org/10.3390/ani12030239.
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The objective was to document the use of spirometry and ventilation settings in small animal anaesthesia and intensive care through a descriptive, open, online, anonymous survey. The survey was advertised on social media and via email. Participation was voluntary. The google forms platform was used. It consisted of eight sections in English: demographic information, use of spirometry in spontaneously ventilating/mechanically ventilated dogs, need for spirometry, equipment available and calibration status, ventilation modes, spirometry displays, compliance (CRS) and resistance (RRS) of the respiratory system. Simple descriptive analyses were applied. There were 128 respondents. Respondents used spirometry more in ventilated dogs than during spontaneous breathing. Over 3/4 of the respondents considered spirometry essential in “selected” (43%) or “most” cases (33%). Multiple devices and technologies were used. The majority of the respondents were not directly involved in or informed about the calibration of their equipment. Of all displays, pressure-volume loops were the most common. Values of CRS and RRS were specifically monitored in more than 50% of cases by 44% of the respondents only. A variety of ventilation modes was used. Intensivists tend to use smaller VT than anaesthetists. More information on reference intervals of CRS and RRS and technical background on spirometers is required
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Logie, Karla, Liam Welsh, and Sarath C. Ranganathan. "Telehealth spirometry for children with cystic fibrosis." Archives of Disease in Childhood 105, no. 12 (November 6, 2019): 1203–5. http://dx.doi.org/10.1136/archdischild-2019-317147.
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AimWe assessed the feasibility of telehealth spirometry assessments for children with cystic fibrosis (CF) living in a regional setting.MethodPatients with acceptable computer hardware at home were provided with a SpiroUSB (Vyaire) spirometer. Spirometry was performed during ‘home admissions’ or for ongoing home monitoring in children living outside metropolitan Melbourne. At the end of the session, the family forwarded the data to the Royal Children’s Hospital, Melbourne.ResultsTwenty-two patients aged 7 to 17 years participated, with spirometry successful in 55 of 59 (93%) attempted sessions according to American Thoracic Society/European Respiratory Society criteria. The median distance between the subject’s home and the hospital was 238 km (range 62–537 km) which equated to a travel time saving of 5 hours and 34 min per hospital visit.ConclusionHome-based telehealth spirometry is feasible in children with CF and can support the CF team during home-based admissions and for ongoing outpatient monitoring.
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Wouters, E. F. M., and R. Breyer-Kohansal. "Spirometry." Chest 161, no. 3 (March 2022): 593–94. http://dx.doi.org/10.1016/j.chest.2022.01.004.
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Lange, Nancy E., Mary Mulholland, and Mary Elizabeth Kreider. "Spirometry." Chest 136, no. 2 (August 2009): 608–14. http://dx.doi.org/10.1378/chest.08-2315.
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Davis, Stephanie. "Spirometry." Paediatric Respiratory Reviews 7 (January 2006): S11—S13. http://dx.doi.org/10.1016/j.prrv.2006.04.020.
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Liou, Theodore G., and Richard E. Kanner. "Spirometry." Clinical Reviews in Allergy & Immunology 37, no. 3 (April 4, 2009): 137–52. http://dx.doi.org/10.1007/s12016-009-8128-z.
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Lusk, Sally L. "Spirometry." AAOHN Journal 45, no. 6 (June 1997): 319–21. http://dx.doi.org/10.1177/216507999704500607.
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Honesto, Andrea L., and Heather Sams. "Spirometry." Journal of Asthma & Allergy Educators 3, no. 2 (March 30, 2012): 83–84. http://dx.doi.org/10.1177/2150129712439295.
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García-Río, Francisco, Myriam Calle, Felip Burgos, Pere Casan, Félix del Campo, Juan B. Galdiz, Jordi Giner, Nicolás González-Mangado, Francisco Ortega, and Luis Puente Maestu. "Spirometry." Archivos de Bronconeumología (English Edition) 49, no. 9 (September 2013): 388–401. http://dx.doi.org/10.1016/j.arbr.2013.07.007.
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Mcivor, Andrew. "Exclusion Spirometry: A Bad Idea." Canadian Respiratory Journal 11, no. 3 (2004): 186–87. http://dx.doi.org/10.1155/2004/609730.
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No single item or combination of items from the bedside clinical examination can rule out airflow obstruction; for this purpose, spirometry is essential. I, like my colleagues, visually conceptualize chronic obstructive pulmonary disease patients using objective lung function testing. I am well aware that spirometry has neither been accepted nor widely performed outside of specialist practice (1). In this issue of theCanadian Respiratory Journal, Almirall and Bégin (pages 195 to 196) provide a very reasoned argument suggesting that obtaining isolated normal values of spirometric indexes can exclude certain conditions.
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Arjun, Padmanabhan, Sanjeev Nair, Veena Babu, Ashwin S. Nair, Soumya Gopakumar, Krishnapillai Vijayakumar, and Vellappillil Raman Kutty. "Peak Flow and Mini-spirometry in the Diagnosis of Obstructive Airway Diseases." HAP Journal of Public Health and Clinical Medicine 1, no. 1 (January 1, 2023): 22–27. http://dx.doi.org/10.1177/jpm.221135948.
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Background: India is initiating measures to address Chronic Obstructive Pulmonary Disease(COPD) and Asthma, major causes of mortality and morbidity, at the primary care level. The efforts are limited by the lack of access to spirometry. Various alternatives are being tried out in resource limited countries. Methods: A hospital based cross-sectional study was done at two tertiary care hospitals in Trivandrum, South India, in patients with a clinical diagnosis of COPD or Asthma. Spirometry was done by a trained spirometry technician, along with peak-flow recording and a recording on portable mini-spirometer (COPD6 ®). The values obtained by the latter two were compared to those obtained by spirometry. Results: The study included 360 patients. PEFR showed a positive correlation with both FEV1/FVC as well as FEV1 (R2 of 0.35 and 0.65, respectively). FEV1/FEV6 and FEV1 on COPD6 also correlated positivity with FEV1 and FEV1/FVC on spirometry (R2 of 0.68 and 0.89, respectively). Sensitivity and specificity of PEFR to diagnose obstruction was best at a cut-off of 74% of predicted, as determined by ROC, giving sensitivity of 84.8% and specificity of 85.1%. Sensitivity and specificity of COPD6 to detect obstruction was 75.9% and 95.7%, respectively. Conclusion: Mini-spirometry (COPD6) and peak-flow measurement may be used as alternatives to spirometry in resource limited settings as in the primary care centers of India for the diagnosis of obstructive airway diseases.
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Fechter-Leggett, Ethan D., Sandra K. White, Kathleen B. Fedan, Jean M. Cox-Ganser, and Kristin J. Cummings. "Burden of respiratory abnormalities in microwave popcorn and flavouring manufacturing workers." Occupational and Environmental Medicine 75, no. 10 (July 25, 2018): 709–15. http://dx.doi.org/10.1136/oemed-2018-105150.
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ObjectivesDiacetyl, a butter flavour compound used in food and flavouring production, is a respiratory toxin. We characterised the burden of respiratory abnormalities in workers at popcorn and flavouring manufacturing facilities that used diacetyl as evaluated through US National Institute for Occupational Safety and Health (NIOSH) health hazard evaluations.MethodsWe performed analyses describing the number and percentage of current and former workers from popcorn and flavouring manufacturing facilities where NIOSH administered a respiratory health questionnaire and spirometry testing who met case definitions of suspected flavouring-related lung disease. Case definitions were pathologist reported: lung biopsy pathology report stating supportive of/consistent with constrictive bronchiolitis or bronchiolitis obliterans; probable: obstructive/mixed spirometric pattern with forced expiratory volume in 1 s (FEV1) <60% predicted; possible: obstructive/mixed spirometric pattern with FEV1 ≥60% or any spirometric restriction; symptoms only: normal spirometry plus exertional dyspnoea or usual cough.ResultsDuring 2000–2012, NIOSH collected questionnaire and spirometry data on 1407 workers (87.0% current, 13.0% former) at nine facilities in eight states. After applying case definitions, 4 (0.3%) were classified as pathologist reported, 48 (3.4%) as probable, 234 (16.6%) as possible and 404 (28.7%) as symptoms only. The remaining 717 (51.0%) workers had normal spirometry without exertional dyspnoea or usual cough. Seven of 11 workers with biopsies did not meet the pathologist-reported case definition, although four met probable and three met possible.ConclusionsThis approach demonstrates the substantial burden of respiratory abnormalities in these workers. A similar approach could quantify the burden of respiratory abnormalities in other industries that use diacetyl.
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Hanif, Junaid, Ron Eccles, and Suhair S. M. Jawad. "Use of a Portable Spirometer for Studies on the Nasal Cycle." American Journal of Rhinology 15, no. 5 (September 2001): 303–6. http://dx.doi.org/10.1177/194589240101500503.
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Studies based on the nasal cycle are difficult because multiple measurements of nasal patency need to be made over many hours. There is a great need for a simple portable instrument that can be used away from the clinical laboratory for studies on the nasal cycle. Our aim was to investigate the usefulness of a small portable spirometer in studying the nasal cycle. The Mir Spirobank spirometer was fitted with a nasal adapter to measure the volume of air expired from each nasal passage during a slow vital capacity (VC). The spirometer was used to measure the fractions of the slow VC volume of air expired through the right and left nasal passage in turn. Hourly measurements were made over a 5-hour period in six healthy volunteers. The spirometry measurements of the volume of air expired from each nasal passage were compared with nasal conductance of each nasal passage (airflow at 75 Pa) obtained by posterior rhinomanometry. The spirometer was found easy to use by both the investigator and the patients. Simple regression analysis of the spirometer and rhinomanometer measures of airflow partitioning found a correlation coefficient of r = 0.827 (p < 0.0001; n = 36). These results indicate that the partitioning of nasal expired volume measured by spirometry is directly comparable with partitioning of nasal airflow obtained with rhinomanometry. Spirometry has considerable advantages over rhinomanometry for studies on the nasal cycle because of portability and ease of use.
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Tan, WC, J. Bourbeau, P. Hernandez, K. Chapman, R. Cowie, MJ FitzGerald, S. Aaron, et al. "Canadian Prediction Equations of Spirometric Lung Function for Caucasian Adults 20 to 90 Years of Age: Results from the Canadian Obstructive Lung Disease (COLD) Study and the Lung Health Canadian Environment (LHCE) Study." Canadian Respiratory Journal 18, no. 6 (2011): 321–26. http://dx.doi.org/10.1155/2011/540396.
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BACKGROUND: Currently, no reference or normative values for spirometry based on a randomly selected Canadian population exist.OBJECTIVE: The aim of the present analysis was to construct spirometric reference values for Canadian adults 20 to 90 years of age by combining data collected from healthy lifelong nonsmokers in two population-based studies.METHOD: Both studies similarly used random population sampling, conducted using validated epidemiological protocols in the Canadian Obstructive Lung Disease study, and the Lung Health Canadian Environment study. Spirometric lung function data were available from 3042 subjects in the COLD study, which was completed in 2009, and from 2571 subjects in the LHCE study completed in 1995. A total of 844 subjects 40 to 90 years of age, and 812 subjects 20 to 44 years of age, were identified as healthy, asymptomatic, lifelong nonsmokers, and provided normative reference values for spirometry. Multiple regression models were constructed separately for Caucasian men and women for the following spirometric parameters: forced expiratory volume in 1 s (FEV1), forced vital capacity (FVC) and FEV1/FVC ratio, with covariates of height, sex and age. Comparison with published regression equations showed that the best agreement was obtained from data derived from random populations.RESULTS: The best-fitting regression models for healthy, never-smoking, asymptomatic European-Canadian men and women 20 to 90 years of age were constructed. When age- and height-corrected FEV1, FVC and FEV1/FVC ratio were compared with other spirometry reference studies, mean values were similar, with the closest being derived from population-based studies.CONCLUSION: These spirometry reference equations, derived from randomly selected population-based cohorts with stringently monitored lung function measurements, provide data currently lacking in Canada.
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Kossyvaki, Vasiliki, Nektarios Anagnostopoulos, Georgios Kaltsakas, Philip Emmanouil, Abir Alsaid, Abdelfattah Touman, Chara Tzavara, Nikolaos Koulouris, and Grigoris Stratakos. "The Value of Dyspnea and Spirometry in Detecting Relapse of Benign Tracheal Stenosis." Respiration 101, no. 2 (October 6, 2021): 174–83. http://dx.doi.org/10.1159/000519216.
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<b><i>Background:</i></b> Benign tracheal stenosis may relapse after management. <b><i>Objectives:</i></b> This study aimed to assess the value of dyspnea and spirometry in detecting relapse of benign tracheal stenosis. <b><i>Methods:</i></b> Patients with benign tracheal stenosis were evaluated post-management, at regular follow-up and emergency visits, with the Medical Research Council (MRC) dyspnea scale, spirometry, and flexible bronchoscopy. Patient visits were categorized and compared, in terms of change in clinical and functional parameters, in 2 groups: visits with relapse (case group) and visits with no relapse (control group). The ability of the MRC dyspnea scale and spirometry to predict relapse was evaluated. <b><i>Results:</i></b> Thirty-five patients with benign tracheal stenosis were included. Mean follow-up duration was 3.2 years (standard deviation = 3.3). Spirometry data were analyzed from 43 relapse visits (23 patients) versus 90 nonrelapse visits. The MRC dyspnea score and most spirometric indices were associated with relapse. In the receiver operating characteristic analysis, forced expiratory volume in 1 s, forced expiratory flow when 25% of forced vital capacity has been expired, peak expiratory flow (PEF), and total peak flow were superior to the MRC dyspnea score in predicting relapse. Among spirometric indices, >10.8% of PEF reduction has been very sensitive and specific. <b><i>Conclusions:</i></b> This study supports the role of dyspnea and spirometry in monitoring benign tracheal stenosis, with spirometry predicting relapse even in clinically stable patients. PEF being a very sensitive index has the additional advantage of being assessed by peak flow meter and could potentially be used for remote monitoring.
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Nazarov, B. M., K. A. Zykov, L. G. Ratova, O. Yu Agapova, Yu A. Dolgusheva, and I. E. Chazova. "Do spirometry for patients with cardiovascular diseases?" Systemic Hypertension 10, no. 2 (June 15, 2013): 69–74. http://dx.doi.org/10.26442/sg28973.
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In recent decades cardiovascular (CVD) and COPD diseases are widespread around the world, leading to a high prevalence of patients with comorbidity, especially arterial hypertension (AH) and chronic obstructive pulmonary disease (COPD) and/or bronchial asthma (BA). The growing number of patients with this comorbidity is due to increased hypertension, COPD, and asthma comorbidities, with the increase of the geriatric population of patients with these pathologies. Epidemiological studies have shown that the deterioration of lung function is as strong a predictor of cardiovascular mortality, as well as major cardiovascular risk factors. However, spirometry in patients with CVD is carried out infrequently. Inadequate spirometric diagnostics of COPD and asthma, especially in patients with cardiovascular disease, affects the clinical course of both diseases, leading to inappropriate treatment and poor prognosis for the patient. The need for extensive screening spirometry in all patients with CVD is not proven. Thera are no spirometry reference values in patients with CVD, which makes it almost impossible to use these parameters in stratification of CV risk. This dictates the need for further research to clarify the relationship between the severity and characteristics of the various CVD and spirometric parameters.
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Ayuk, Adaeze C., Samuel N. Uwaezuoke, Chizalu I. Ndukwu, Ikenna K. Ndu, Kenechukwu K. Iloh, and Chinyere V. Okoli. "Spirometry in Asthma Care: A Review of the Trends and Challenges in Pediatric Practice." Clinical Medicine Insights: Pediatrics 11 (January 1, 2017): 117955651772067. http://dx.doi.org/10.1177/1179556517720675.
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Background: Given the rising incidence of noncommunicable diseases (NCDs) globally, especially bronchial asthma, there is the need to reduce the associated morbidity and mortality by adopting an objective means of diagnosis and monitoring. Aim: This article aims to review the trends and challenges in the use of spirometry for managing childhood bronchial asthma especially in developing countries. Methods: We conducted a literature search of published data on the use of spirometry for the diagnosis of childhood bronchial asthma with special emphasis resource-poor countries. Results: Guidelines for the diagnosis and treatment of childhood asthma recommend the use of spirometry, but this is currently underused in both tertiary and primary care settings especially in developing countries. Lack of spirometers and proper training in their use and interpretation of findings as well as a dearth of asthma guidelines remains core to the underuse of spirometry in managing children with asthma. Targeting education of health care staff was, however, observed to improve its utility, and practical implementable strategies are highlighted. Conclusions: Spirometry is not frequently used for asthma diagnosis in pediatric practice especially in resource-poor countries where the NCD burden is higher. Strategies to overcome the obstacles are implementable and can make a difference in reducing the burden of NCD.
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Sathe, Anil M., and Sushama A. Bhandare. "Comparison of Effect of Flow and Volume Incentive Spirometry on Peak Expiratory Flow Rate and Single Breath Count in Post Sternotomy." International Journal of Health Sciences and Research 12, no. 8 (August 10, 2022): 167–80. http://dx.doi.org/10.52403/ijhsr.20220824.
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Background: Thoracic surgery may cause reduce respiratory function and pulmonary complications, with associated increased risk of mortality. Devices like Flow and Volume incentive spirometry play an important role to improve lung function hence physiotherapy aims to improve respiratory function. Aim: To compare the effect of 2 devices (flow & Volume incentive spirometers) on peak expiratory flow rate and single breath count. Method: In this a Comparative, interventional study of 38 postoperative patients, between the age group of 18-60 years, admitted in the intensive care units and step down units of a tertiary care hospital, who were able to perform flow & Volume incentive spirometers on PEFR and SBC from day 1 to day 5. The patients were asked to perform PEFR & SBC before & after each treatment session, for both groups that is FIS and VIS groups from post-operative day 1 to day 5. PEFR and SBC were recorded pre and post treatment session from day 1 to day 5. The difference between day1 and day 5 were statistically analysed to study the effectiveness of the intervention. Result: Comparison between group A and group B for all parameters was done by using Mann-Whitney U test. The p value is not statistically significant on comparing between the groups, but the improvement in PEFR and SBC from day 1 to day 5 is clinically significant, which indicates that both the devices contribute equally in improving the pulmonary status. Conclusion: The present study concludes that flow targeted incentive spirometry and volume targeted incentive spirometry were equally effective in Improving peak expiratory flow rate and single breath count in post sternotomy for valve replacement. Key words: Flow incentive spirometry, Volume incentive spirometry, Peak expiratory flow rate, Single Breath Count.