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Relevant bibliographies by topics / Autonomic Function Tests (AFTS)

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Academic literature on the topic 'Autonomic Function Tests (AFTS)'

Author: Grafiati

Published: 5 June 2025

Last updated: 25 June 2025

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Journal articles on the topic "Autonomic Function Tests (AFTS)"

1

Sharma, Vanshika, Jyotsna Shukla, Premlata Mittal, and Amita. "The Comparison of Cardiac Autonomic Functions in Patients with Polycystic Ovarian Syndrome and Healthy Controls." International Journal of Pharmaceutical and Clinical Research 15, no. 4 (2023): 435–40. https://doi.org/10.5281/zenodo.12667475.

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<strong>Introduction:</strong> Polycystic ovarian syndrome (PCOS) is a prevalent heterogeneous endocrine condition that affects 5-10% of women of reproductive age. It is one of the most prevalent reasons for female infertility. Autonomic function testing (AFT) is a non-invasive technique used to assess cardiac autonomic dysfunction. AFT might assist us in identifying PCOS women who are more likely to suffer cardiovascular issues. <strong>Aim and Objectives:</strong> To evaluate and compare cardiac autonomic function tests in polycystic ovarian syndrome patients and age-matched healthy women. <strong>Material and Methods:</strong> 60 women between the ages of 18 and 35 were recruited for this research. The research group was divided into two groups. Women with PCOS who had a BMI of 23 were classified cases (n = 30), while healthy women with the same BMI were labelled controls (n = 30). They were tested for autonomic function. <strong>Results:</strong> When compared to healthy controls, women with PCOS had an autonomic imbalance with higher sympathetic discharge (p < 0.05). When compared to healthy controls, there was less vagal drive. <strong>Conclusion:</strong> Autonomic dysfunction was seen in women with PCOS, with increased resting sympathetic and reduced parasympathetic activity.      

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Baskar, Dipti, Pooja Mailankody, Talakad Narasappa Sathyaprabha, P. S. Mathuranath, Rohan R. Mahale, and Hansashree Padmanabha. "Postural Orthostatic Tachycardia Syndrome (POTS) as a Cause of Dizziness – Expanding the Etiological Spectrum." Neurology India 72, no. 5 (2024): 1035–39. http://dx.doi.org/10.4103/neurol-india.ni_651_22.

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Background and Objectives: Dizziness is a frequent complaint encountered in neurology clinics. Dizziness can be spontaneous or triggered, which includes orthostatic dizziness. Orthostatic dizziness can be acute (reflex/vasovagal syncope), chronic (orthostatic hypotension (OH), or postural orthostatic tachycardia syndrome (POTS). Since dizziness has numerous causes, these patients undergo extensive investigations before a diagnosis is made. Here, we describe five patients who presented with dizziness and were diagnosed to have POTS on evaluation. Materials and Methods: We conducted a retrospective study of patients who presented to the Department of Neurology from August 2020 to November 2021 with the complaint of dizziness and were diagnosed with POTS. The clinical history, neurological examination, treatment response, routine blood investigations, magnetic resonance imaging (MRI) brain, and autonomic function tests (AFTs) of the patients were reviewed from patients’ clinical records. Patients with dizziness and with diagnosis other than POTS were excluded from the study. Results: Among the five patients, males were predominant with a male to female ratio of 3:2. All the patients were in their early fourth decade with a mean age of 35.4 years. The presenting symptom was dizziness, and the key associated symptoms were anxiety and headache. Due to the orthostatic nature of symptoms and absence of orthostatic fall in blood pressure (BP), a detailed AFT was carried out, leading to the diagnosis of POTS. Patients were assessed at 3–6 months after treatment and there was a moderate response in one and no response in the remaining four patients. Conclusion: POTS should be considered a possible etiology when patients present with orthostatic dizziness in the absence of orthostatic fall in BP. Anxiety and headache may be associated with this type of dizziness.

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Chow, Kevin E., Ruchi Dhyani, and Thomas C. Chelimsky. "Basic Tests of Autonomic Function." Journal of Clinical Neurophysiology 38, no. 4 (2021): 252–61. http://dx.doi.org/10.1097/wnp.0000000000000789.

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M.Janet Sugantha, M.Sivaraj. "Autonomic Function Tests in Young Obese Individuals." International Journal of Physiology 7, no. 3 (2019): 129–34. http://dx.doi.org/10.37506/ijop.v7i3.145.

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                                         Obesity is a leading preventable cause of death worldwide, with increasing prevalence in adults and children. Obesity is a complex disorder characterized by autonomic dysfunction in addition to alteration in sympathetic and parasympathetic activity of the heart. It is being recognized that the autonomic nervous system derangement takes place in obese persons. With this background we studied cardiac autonomic function in young obese individuals. The study and control group were subjected to battery of autonomic function tests using standard techniques. The cardio vascular autonomic reflex tests (Orthostatic standing test, Deep Breathing, Valsalva Manoeuvre, Isometric Hand Grip Test and Cold Pressor Test) are considered to predict the autonomic dysfunction if three out of five tests are abnormal. Based on these criteria, our study was able to quantify the autonomic dysfunction in young obese individuals.                                        

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van Vliet, JA, AA Vein, MD Ferrari, and JG van Dijk. "Cardiovascular Autonomic Function Tests in Cluster Headache." Cephalalgia 26, no. 3 (2006): 329–31. http://dx.doi.org/10.1111/j.1468-2982.2006.01004.x.

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While facial autonomic signs are prominent during cluster headache (CH) attacks, cardiovascular autonomic changes have been described in few CH patients. Cardiovascular autonomic function tests (AFT) can be used to assess general autonomic function in CH patients in different stages of the disease. We aimed to assess whether general autonomic function is changed in CH patients during a cluster period. AFT was performed both during a cluster period, but outside an actual attack, and outside a cluster period in 18 patients. Heart rate variability was studied at rest, during deep breathing, after standing up and during a Valsalva manoeuvre. Blood pressure (BP) changes were recorded at rest, during standing up and during sustained handgrip. Measurements during and outside the cluster period were compared using the paired t-test. AFT measurements revealed no significant differences between the two measurements, except for diastolic BP in rest, which was higher during the cluster period [80.3 (SD 12.2) vs. 74.8 (SD 9.0), P = 0.04]. Autonomic dysfunction during a cluster period, but outside an attack, does not include systemic cardiovascular control.

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Uribe, William, Adrián Baranchuk, and Federico Botero. "Syncope: electrocardiogram and autonomic function tests." Medwave 16, Suppl4 (2016): e6816-e6816. http://dx.doi.org/10.5867/medwave.2016.6816.

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Low, Phillip A., Victoria A. Tomalia, and Ki-Jong Park. "Autonomic Function Tests: Some Clinical Applications." Journal of Clinical Neurology 9, no. 1 (2013): 1. http://dx.doi.org/10.3988/jcn.2013.9.1.1.

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Jin, Heung Yong, and Tae Sun Park. "Autonomic Nerve Function Tests in Patients with Diabetes." Journal of Korean Diabetes 24, no. 2 (2023): 71–75. http://dx.doi.org/10.4093/jkd.2023.24.2.71.

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The autonomic nervous system (ANS) regulates the internal functions of the body organs, such as heart rate, digestion, respiratory rate, pupil response, urination, and sexual arousal. The ANS is divided into two parts: the sympathetic and parasympathetic nervous systems. However, the ANS can be damaged or degenerated by metabolic problems including hyperglycemia, leading to diabetic autonomic neuropathy (DAN), which is a prevalent complication among diabetic patients. Cardiac autonomic neuropathy is an important form of DAN that results from an imbalance between the sympathetic and parasympathetic nerve responses. This imbalance can lead to symptoms such as resting tachycardia, postural hypotension, and orthostatic tachycardia along with other types of autonomic neuropathy. Special tests can be performed to evaluate and diagnose this condition, including cardiovascular autonomic function tests. The aim of this review is to discuss the various tests used to diagnose and monitor autonomic neuropathy in diabetic patients and how to use and interpret them effectively.

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Park, Kee Hong, and Eun Hee Sohn. "Interpretation of Autonomic Function Test." Journal of the Korean Neurological Association 39, no. 2 (2021): 61–67. http://dx.doi.org/10.17340/jkna.2021.2.1.

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The autonomic function test consists of the tests that evaluate the sudomotor, cardiovascular adrenergic, and parasympathetic functions. As its importance grows, more and more medical institutions want to evaluate it properly. However, there are many variables to consider and difficulties in interpreting ambiguous results, which may lead to incorrect screening. This paper is intended to help provide an appropriate interpretation of autonomic function tests in clinical settings.

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Sugantha, M. Janet, and M. Sivaraj. "Autonomic Function Tests in Young Obese Individuals." International Journal of Physiology 7, no. 3 (2019): 129. http://dx.doi.org/10.5958/2320-608x.2019.00099.4.

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Dissertations / Theses on the topic "Autonomic Function Tests (AFTS)"

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Gautschy, Beat. "Autonomic function tests as related to age and gender in normal man /." [S.l : s.n.], 1985. http://www.ub.unibe.ch/content/bibliotheken_sammlungen/sondersammlungen/dissen_bestellformular/index_ger.html.

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Negrao, Bianca Lee. "Autonomic correlates at rest and during evoked attention in children with attention-deficit/hyperactivity disorder and effects of sympathomimetic medication." Diss., Pretoria : [s.n.], 2009. http://upetd.up.ac.za/thesis/available/etd-07072009-163036/.

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Malley, Mary T. "The influence of aerobic fitness on the baroreflex responses to tests of autonomic function in healthy young women." 1987. http://catalog.hathitrust.org/api/volumes/oclc/15609567.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1987.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 81-89).

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Books on the topic "Autonomic Function Tests (AFTS)"

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Piha, Sampo Juhana. Cardiovascular autonomic function tests: Responses in healthy subjects and determination of the age-related reference values. Rehabilitation Research Centre of the Social Insurance Institution, 1988.

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2

Malik, Marek. Clinical Guide to Cardiac Autonomic Tests. M Malik, 2010.

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Heart rate variability (HRV) signal analysis: Clinical applications. Taylor & Francis, 2013.

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4

Watanabe, Mari, Markad V. Kamath, Adrian R. M. Upton, and Carlos A. Morillo. Heart Rate Variability (Hrv) Signal Analysis. Taylor & Francis Group, 2012.

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Cohen, Jeffrey A., Justin J. Mowchun, Victoria H. Lawson, and Nathaniel M. Robbins. A 30-Year-Old Male Requiring Management of Progressive Weakness. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780190491901.003.0006.

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Management of Guillain-Barré syndrome involves several factors. Pulmonary function tests are important to monitor. Telemetry and blood pressure must be monitored because of the significant risk of autonomic dysfunction. Intravenous immunoglobulin is the immunotherapy of choice for this disease, as it is less complicated to administer than plasma exchange. Supportive management issues to address include deep vein thrombosis prophylaxis, bowel/bladder care as ileus and urinary retention may be develop secondary to dysautonomia, physical/occupational/speech therapy consults, nutrition, and pain control. Gabapentin can also be helpful for GBS-related pain. This chapter discusses an approach to treatment that includes the role of respiratory and autonomic monitoring as well as immunotherapy considerations.

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Woodford, Henry J., and James George. Examining the nervous system of an older patient. Oxford University Press, 2017. http://dx.doi.org/10.1093/med/9780198701590.003.0111.

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Ageing is associated with changes in the nervous system, especially the accumulation of neurodegenerative and white matter lesions within the brain. Abnormalities are commonly found when examining older people and some of these are associated with functional impairment and a higher risk of death. In order to reliably interpret examination findings it is important to assess cognition, hearing, vision, and speech first. Clarity of instruction is key. Interpretation of findings must take into account common age-related changes. For example, genuine increased tone should be distinguished from paratonia. Power testing should look for asymmetry within the individual, rather than compare to the strength of the examiner. Parkinsonism should be looked for and gait should be observed. Neurological assessment can incorporate a range of cortical abilities and tests of autonomic function, but the extent of these assessments is likely to be determined by the clinical situation and time available.

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Book chapters on the topic "Autonomic Function Tests (AFTS)"

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Pal, Gopal, Pravati Pal, and Nivedita Nanda. "Autonomic Function Tests." In Comprehensive Textbook of Medical Physiology (Volume 1). Jaypee Brothers Medical Publishers (P) Ltd., 2017. http://dx.doi.org/10.5005/jp/books/12960_35.

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Novak, Peter. "Autonomic Tests." In Autonomic Testing, edited by Peter Novak. Oxford University Press, 2019. http://dx.doi.org/10.1093/med/9780190889227.003.0004.

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Autonomic tests are focused on the cardiovascular and sudomotor systems. Established cardiovascular reflex function tests are heart rate variability during paced deep breathing, Valsalva maneuver, and tilt test. Transcranial Doppler is essential to assess cerebral vasculature and blood flow regulation to orthostatic stress. Skin biopsy also assesses small sensory and sudomotor fibers. The test results can be graded by a quantitative scale for grading of cardiovascular reflex tests, transcranial Doppler, quantitative sudomotor axon reflex test, and small fiber (epidermal sensory and sweat gland) densities from skin biopsies (QASAT). The QASAT is the validated objective instrument for grading of dysautonomia, related small fiber neuropathy, and cerebral blood flow.

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Low, Phillip A., and Wolfgang Singer. "Evaluation of Adrenergic Function." In Clinical Neurophysiology, 5th ed., edited by Devon I. Rubin. Oxford University PressNew York, 2021. http://dx.doi.org/10.1093/med/9780190067854.003.0044.

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Abstract The purpose and role of adrenergic function testing in the clinical setting is to assess for autonomic disorders that involve maintenance and regulation of blood pressure and heart rate; it furthermore adds to the assessment of other domains of autonomic function in order to define the distribution of autonomic deficits. Simple, accurate, and reproducible tests of adrenergic function are now routinely used in clinical autonomic laboratories. This chapter focuses on the most widely used tests to evaluate adrenergic function in an autonomic laboratory, namely, beat-to-beat blood pressure and heart rate responses to the Valsalva maneuver and head-up tilt. It is possible to separately evaluate the vagal and adrenergic components of baroreflex sensitivity.

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"Quantitative Tests of Sensory, Motor, and Autonomic Function." In Essentials of Spinal Cord Injury, edited by Michael G. Fehlings, Maxwell Boakye, John F. Ditunno Jr., Alexander R. Vaccaro, Serge Rossignol, and Anthony S. Burns. Georg Thieme Verlag, 2013. http://dx.doi.org/10.1055/b-0034-83881.

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Low, Phillip A. "Evaluation of Adrenergic Function." In Clinical Neurophysiology. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780190259631.003.0037.

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Peripheral adrenergic function is important in the maintenance of postural normotension. It may be impaired in peripheral neuropathies, and this may be manifested as alterations in acral temperature, color, or sweating. Simple, accurate, and reproducible tests of peripheral adrenergic function are now routinely used in clinical autonomic laboratories. For noninvasive evaluation of autonomic function, tests of peripheral adrenergic function can be used to separately evaluate the vagal and adrenergic components of baroreflex sensitivity. The vagal component is derived from the heart period response to blood pressure change and the adrenergic component by the blood pressure recovery time in response to the preceding fall in blood pressure, induced by the Valsalva maneuver.This chapter describes methods used to determine peripheral adrenergic function and their value and shortcomings.

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Novak, Vera, and Jerry R. Mendell. "Evaluation of the Peripheral Neuropathy Patient Using Autonomic Reflex Tests." In Diagnosis and Management of Peripheral Nerve Disorders. Oxford University PressNew York, NY, 2001. http://dx.doi.org/10.1093/oso/9780195133011.003.0005.

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Abstract Autonomic nervous system involvement is an important feature of many acute and chronic peripheral neuropathies (Table 5-1). Neuropathies may affect both somatic and autonomic nerves, or less often, autonomic nervous system failure may be the major or sole manifestation of the condition. In either case, autonomic reflex testing has emerged as an important diagnostic tool. Examples where autonomic reflex tests are valuable include acute panautonomia (Chapter 9), pure autonomic failure, and paraneoplastic intestinal pseudoobstruction. In patients with small cell carcinoma of the lung, autonomic failure may precede other manifestations of the disease. In other patients, such as those with small-fiber sensory neuropathies, loss of a particular autonomic nervous system function, like sudomotor function of the distal extremity; can provide objective evidence of nerve fiber damage that may be difficult to substantiate by other means (see Case Report 1: Idiopathic Painful Sensory Neuropathy).

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Low, Phillip A. "Evaluation of Adrenergic function." In Clinical Neurophysiology. Oxford University Press, 2009. http://dx.doi.org/10.1093/med/9780195385113.003.0037.

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For noninvasive evaluation of autonomic function, tests of peripheral adrenergic function have recently been developed so that it is possible to separately evaluate the vagal and adrenergic components of baroreflex sensitivity. The vagal component is derived from the heart period response to BP change and the adrenergic component by the PRT in response to the preceding fall in BP, induced by the VM.

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Low, Phillip A. "Quantitative Sudomotor Axon Reflex and Related Tests." In Clinical Neurophysiology. Oxford University Press, 2009. http://dx.doi.org/10.1093/med/9780195385113.003.0036.

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The application of noninvasive, sensitive, quantitative, and dynamic tests of sudomotor function enhances significantly our ability to quantitate one aspect of the autonomic deficit. The QSART has an important role in clinical applications to better definition of the course of neuropathy, its response to treatment, and further exploration of sudomotor physiology.

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Low, Phillip A. "Quantitative Sudomotor Axon Reflex and Related Tests." In Clinical Neurophysiology. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780190259631.003.0036.

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Small distal nerve fibers are often selectively involved in some patients with axonal neuropathies (distal small-fiber neuropathy). One method of testing the integrity of these small nerve fibers is to study the postganglionic sympathetic sudomotor “C” fiber function. The application of noninvasive, sensitive, quantitative, and dynamic tests of sudomotor function significantly enhances the ability to quantitate one aspect of the autonomic deficit. The quantitative sudomotor axon reflex test (QSART) has an important role in clinical applications to better definition of the course of neuropathy, its response to treatment, and further exploration of sudomotor physiology. Simpler methods are available as screening tests. This chapter reviews the use of methods to measure sudomotor fiber function.

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Sandroni, Paola. "Electrophysiology of Pain." In Clinical Neurophysiology. Oxford University Press, 2016. http://dx.doi.org/10.1093/med/9780190259631.003.0040.

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The diagnosis of neuropathic pain is a challenge for physicians.The incompletely understood and complex mechanisms of neuropathic pain contribute to the difficulty. As pain is a subjective experience, there is no test that can assess it.. However various neurophysiological tests can assess the integrity, or lack of thereof, of the somatosensory pathways. Although some tests are used routinely (i.e., the quantitative sensory test and the autonomic testing), others have failed to reach widespread use in clinical practice, although they have provided very interesting data in the research field. This chapter reviews various neurophysiologic techniques used to study the function and dysfunction of the nociceptive system in humans, including quantitative sensory tests (QSTs), autonomic tests, microneurography (MCNG), laser evoked potentials (LEPs) and contact heat evoked potential stimulator (CHEPS).

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Conference papers on the topic "Autonomic Function Tests (AFTS)"

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Singh, Dilbag, B. S. Saini, Vinod Kumar, and Kishore K. Deepak. "Time-Evolution of Cardiovascular Variability During Autonomic Function Tests in Physiological Investigations." In Conference Proceedings. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2006. http://dx.doi.org/10.1109/iembs.2006.259322.

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Singh, Dilbag, B. S. Saini, Vinod Kumar, and Kishore K. Deepak. "Time-Evolution of Cardiovascular Variability During Autonomic Function Tests in Physiological Investigations." In Conference Proceedings. Annual International Conference of the IEEE Engineering in Medicine and Biology Society. IEEE, 2006. http://dx.doi.org/10.1109/iembs.2006.4397767.

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