Journal articles: 'Audiometry, Impedance'

1

Chung, Myung-Hyun. "Impedance Audiometry." Journal of Clinical Otolaryngology Head and Neck Surgery 7, no. 2 (1996): 261–73. http://dx.doi.org/10.35420/jcohns.1996.7.2.261.

Full text

APA, Harvard, Vancouver, ISO, and other styles

2

Kanzaki, Jin. "Impedance Audiometry." AUDIOLOGY JAPAN 51, no. 2 (2008): 99–105. http://dx.doi.org/10.4295/audiology.51.99.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Bernstein, Joel M. "Clinical Impedance Audiometry." Allergy and Asthma Proceedings 9, no. 2 (1988): 123–28. http://dx.doi.org/10.2500/108854188778994931.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Biswas, Anirban. "Quiz on impedance audiometry." Indian Journal of Otolaryngology and Head and Neck Surgery 46, no. 2 (1994): 105–6. http://dx.doi.org/10.1007/bf03048884.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Thomsen, K. A. "The Origin of Impedance Audiometry." Acta Oto-Laryngologica 119, no. 2 (1999): 163–65. http://dx.doi.org/10.1080/00016489950181585.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

M, Lejska. "Impedance audiometry: Stapedial reflex eliciting conditions." Heighpubs Otolaryngology and Rhinology 1, no. 3 (2017): 060–68. http://dx.doi.org/10.29328/journal.hor.1001011.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Levine, A. Paul, Moises A. Arriaga, and William M. Luxford. "Impedance Audiometry and Iatrogenic Hearing Loss." Otolaryngology–Head and Neck Surgery 108, no. 1 (1993): 70–72. http://dx.doi.org/10.1177/019459989310800109.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Peterson, M. Kathleen. "IMPEDANCE AUDIOMETRY AND THE BRAIN-DAMAGED CHILD." Developmental Medicine & Child Neurology 20, no. 6 (2008): 800–802. http://dx.doi.org/10.1111/j.1469-8749.1978.tb15314.x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Kitsera, Ol Ol. "Karhart’s notch in ear diseases." OTORHINOLARYNGOLOGY №5-6(3) 2020, no. 5-6(3) 2020 (November 4, 2020): 58–63. http://dx.doi.org/10.37219/2528-8253-2020-6-58.

Full text

Abstract:

According to the literature and our research, Karhart’s notch, as a local increase in bone conduction thresholds at frequencies of 500-3000 Hz, is observed not only in otosclerosis, but also in other diseases of the middle ear, especially – with adhesive and secretory otitis. Therefore, it is not appropriate to use the presence of a Karhart’s notch as a pathognomonic sign of otosclerosis. Audiometric diagnostics of non-purulent ear diseases should definitely be supplemented with impedance audiometry.

APA, Harvard, Vancouver, ISO, and other styles

10

Sanu, Sanoop, Shilpa Divakaran, Sabarinath Vijayakumar, Sunil Saxena, Arun Alexander, and Suryanarayanan Gopalakrishnan. "Dynamic Slow Motion Video Endoscopy as an Adjunct to Impedance Audiometry in the Assessment of Eustachian Tube Function." International Archives of Otorhinolaryngology 22, no. 02 (2017): 141–45. http://dx.doi.org/10.1055/s-0037-1603920.

Full text

Abstract:

Introduction Eustachian tube (ET) dysfunction plays an important role not only in the pathophysiology of various middle ear disorders, but also in predicting the outcome of the treatment. As there is no single test that assesses both the anatomic and physiological functions of the ET, a combination of tympanometry and dynamic slow motion video endoscopy may improve the sensitivity of ET function assessment. Objective To find out if there is any correlation between dynamic slow motion nasal video endoscopy and impedance audiometry in assessing ET function in patients with middle ear diseases. Methods Ours was a descriptive study performed with 106 patients attending the Ear, Nose and Throat (ENT) Outpatient Department of a tertiary care center in South India with features suggestive of middle ear disease. All patients underwent impedance audiometry and dynamic slow motion nasal video endoscopy, and were graded based on the severity of the ET pathology. Results A total of 47 out of 97 patients with abnormal endoscopy findings also had abnormal impedance audiometry. The correlation was greater among the patients with higher grades of ET dysfunction. The endoscopy findings of 106 cases, when correlated with middle ear manometry, revealed that 56 cases showed complete agreement, and 50 cases showed disagreement. The nasal endoscopy results, when correlated with middle ear manometry studies by using McNemar's chi-squared (χ2) test, showed a significant association between the 2 tests (p = 0.017). Conclusion There is a significant alteration in middle ear pressure as the severity of the ET tube dysfunction increases. Impedance audiometry and nasal endoscopy provide a better measure of ET function.

APA, Harvard, Vancouver, ISO, and other styles

11

Ohno, Fumio, Haruhiro Suzuki, and Kenshi Katsuda. "Preoperative determination of attic block. Examined by impedance audiometry." Practica Oto-Rhino-Laryngologica 83, no. 10 (1990): 1503–9. http://dx.doi.org/10.5631/jibirin.83.1503.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Pelmear, P. L., D. Leong, L. Wong, J. Roos, and M. Pike. "Hand-Arm Vibration Syndrome and Hearing Loss in Hard Rock Miners." Journal of Low Frequency Noise, Vibration and Active Control 6, no. 2 (1987): 49–66. http://dx.doi.org/10.1177/026309238700600201.

Full text

Abstract:

The audiometric data of hard-rock miners exposed to hand-arm vibration from jack-leg hammers obtained in surveys two years apart has been analyzed. Both air condition and impedance audiometry was used. The workers were also examined to determine the presence and severity of vibration white finger. (VWF). The hearing levels for both ears were combined, and by multiple regression analysis it is shown that there is a significant association between hearing level (at 4kHz) and stage of VWF; hearing loss and age; and hearing loss and vibration exposure years. The hearing loss was significantly greater in miners with VWF who had less than 11 years vibration exposure.

APA, Harvard, Vancouver, ISO, and other styles

13

Sharma, Shilpam, Abhinav Srivastava, and Chander Mohan Sharma. "Middle Ear Dysfunction: Connection to Allergic Rhinitis." An International Journal Clinical Rhinology 9, no. 2 (2016): 65–67. http://dx.doi.org/10.5005/jp-journals-10013-1270.

Full text

Abstract:

ABSTRACT Introduction The correlation between middle ear pathology due to Eustachian tube dysfunction and nasal allergy has been a topic of debate since long. Studies of the pathogenesis of otitis media have identified interactions among infection, allergic reactions and Eustachian tube dysfunction. AIMS- The aim of this study was to evaluate the relationship between Eustachian tube dysfunction and nasal allergy and to evaluate the efficacy of oral steroids and intranasal steroidal spray on Eustachian tube dysfunction. Materials and methods The patients were diagnosed according to the diagnostic criteria of allergic rhinitis. A total of 50 patients having moderate/severe symptoms who had not taken any treatment for allergic rhinitis in the past 6 weeks with deranged middle ear function were included in the study. Group I patients were given Prednisolone, 30 mg once daily for 10 days in tapering dose along with intranasal steroid spray for 6 weeks. Group II patients were given only intranasal steroid spray for 6 weeks. Impedance audiometry was repeated at the end of 6 weeks and results were statistically analyzed. Result This study demonstrated the outcome of systemic steroids and intranasal steroidal spray in the treatment of middle ear dysfunction. In our study impedance audiometry was done at the start of study and showed type B tympanogram in 36% ears in group I and 21% in group II and type C tympanogram in 60% in group I and 50% in group II. Impedance audiometry was repeated at 10 days of treatment and showed reversal to type A curve in 26% of ears in group I and 14% of ears in group II. Impedance audiometry at the end of treatment demonstrated reversal to type A tympanogram in 64% of ears in group I and 48 % of ears in group II. How to cite this article Sharma S, Srivastava A, Sharma CM. Middle Ear Dysfunction: Connection to Allergic Rhinitis. Clin Rhinol An Int J 2016;9(2):65-67.

APA, Harvard, Vancouver, ISO, and other styles

14

Rama Sridhar, M. "A clinical study to determine the effects of adenoidectomy in cases of secretory otitis media in school going children." International Journal of Otorhinolaryngology and Head and Neck Surgery 4, no. 6 (2018): 1427. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20184180.

Full text

Abstract:

Background: Secretory otitis media (SOM) is common otological symptom in children. If left untreated it leads to hearing and speech impairment. Surgical management is effective in serious cases. The present study was done with the objective to assess the effect of adenoidectomy by pure tone and impedance audiometry in cases of SOM with hypertrophied adenoids.Methods: This study comprised 50 cases, who were aged 5-12 years and diagnosed as SOM with adenoid hypertrophy. It was carried out for a period one and half years from December 2015 to July 2017 at Mamata Medical College and Research Hospital, Khammam, Telangana. After detailed history and clinical examination, investigations such as pure tone audiogram, impedance audiometry, X-ray nasopharynx and diagnostic nasal endoscopy were carried out to confirm the diagnosis. All patients were posted for adenoidectomy and when indication was present tonsillectomy was also done. They were followed up at 1st, 3rd and 6th month for pure tone audiometry and impedance was done at 6th month of surgery.Results: In this study, maximum number (60%) of cases belonged to 5-7 years age group, with slight male preponderance (56%). On pure tone audiometry 68% had 16-25 dB and 32% had 26-40 dB hearing loss and average being 24.95 dB. On impedance only 14% had peak preoperatively. Postoperatively, no peak/peak conversion was seen in 33% of cases and mean A-B gap improvement at 1st, 3rd and 6th month was 13 dB, 13.2 dB and 12.7 dB respectively (p value is 0.0001,&lt;5%) when compared to preoperative findings.Conclusion: Adenoidectomy is effective in the management of middle ear infection in children having hypertrophied adenoids.

APA, Harvard, Vancouver, ISO, and other styles

15

Van Deelen, G. W., J. Hulk, and E. H. Huizing. "The use of the underpressure chamber in the treatment of patients with Menière's disease." Journal of Laryngology & Otology 101, no. 3 (1987): 229–35. http://dx.doi.org/10.1017/s0022215100101586.

Full text

Abstract:

AbstractThirty-four Menière patients (43 ears) were treated in an underpressure chamber. Békésy audiometry and impedance audiometry were performed immediately before and after the exposure to underpressure. A hearing gain of more than 10 dB. was found in 19 per cent of the ears (8/43). In five ears this improvement lasted for a few days. Only one patient (2 per cent) reported a relief of tinnitus. In 9 out of the 30 patients (30 per cent) with recent vertiginous attacks a positive subjective effect on the vertigo was obtained.

APA, Harvard, Vancouver, ISO, and other styles

16

Santosh, Dr B. Krishna, Dr K. Krishna Sumanth, Dr Panda Veeranjaneyulu, Dr B. Deepthi, and Dr K. Mamatha. "A clinical study to determine the effects of adenoidectomy in cases of secretory otitis media in school going children." Tropical Journal of Ophthalmology and Otolaryngology 5, no. 8 (2020): 200–206. http://dx.doi.org/10.17511/jooo.2020.i08.01.

Full text

Abstract:

Introduction: Secretory Otitis media (SOM) is the leading cause of hearing loss in children. Despitenumerous studies on the prevention and treatment of SOM during the past decades, itsmanagement remains challenging and controversial. A study was conducted to find the effect ofadenoidectomy in cases of SOM with hypertrophied adenoids and to determine the effect ofadenoidectomy on hearing as assessed by the pure tone and impedance audiometry. Material andMethods: Children aged 5 – 12 years, diagnosed as SOM with adenoid hypertrophy were included.The study was conducted from April 2019 to May 2020, in the department of ENT, GSL MedicalCollege. A detailed history and clinical examination were done. Investigations such as pure toneaudiogram, impedance audiometry, X-ray nasopharynx, and diagnostic nasal endoscopy were carriedout to confirm the diagnosis. Results: Out of the 50 participants, a maximum (60%) belonged tothe 5 – 7 years age group, the male-female ratio was 1.2. Hard of hearing was a common symptomin 66%, tonsillitis, and sinusitis in 36% and 18% respectively. On pure tone audiometry, the averagehearing loss was 24.95dB. Conclusion: Adenoidectomy in children having hypertrophied adenoidswith SOM, not only relieves Eustachian tube obstruction but also removes the source of infection.This leads to clearance of middle ear effusion and improvement in hearing postoperatively.

APA, Harvard, Vancouver, ISO, and other styles

17

Olthoff, Arno, Rainer Laskawi, and Eberhard Kruse. "Successful Treatment of Autophonia with Botulinum Toxin: Case Report." Annals of Otology, Rhinology & Laryngology 116, no. 8 (2007): 594–98. http://dx.doi.org/10.1177/000348940711600807.

Full text

Abstract:

Objectives: We sought to treat autophonia due to a patulous eustachian tube using botulinum toxin. Methods: Because we assumed that the patulous eustachian tube was caused by abnormal activity of paratubal muscles (tensor and levator veli palatini muscles and salpingopharyngeus muscle), paralysis was performed via injection of botulinum toxin type A in a 45-year-old female professional musician who had had chronic unilateral autophonia for 20 years. In addition to a patient interview, an endoscopic examination of the nasopharynx (posterior rhinoscopy), ear microscopy, and impedance audiometry were performed to verify the diagnosis and the outcome after treatment. Results: The autophonia disappeared 1 week after treatment. Normalized tympanic ventilation was verified by impedance audiometry after 8 weeks. The period of symptom relief was 9 months. Conclusions: The administration of botulinum toxin type A provides a new option in the treatment of patulous eustachian tube. The reliability of this method and the effect of repeated injections remains to be proved in future studies.

APA, Harvard, Vancouver, ISO, and other styles

18

Holtby, I., and D. P. Forster. "Evaluation of pure tone audiometry and impedance screening in infant schoolchildren." Journal of Epidemiology & Community Health 46, no. 1 (1992): 21–25. http://dx.doi.org/10.1136/jech.46.1.21.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Nowak, Małgorzata, Beata Wolnowska, and Alicja Sekula. "Monitoring of conductive hearing loss due to because of eustachian tube dysfunction preservative treated with the Otovent pneumotherapy method." Journal of Medical Science 87, no. 3 (2018): 133–37. http://dx.doi.org/10.20883/jms.2018.302.

Full text

Abstract:

INTRODUCTION. A conductive hearing loss is a very common problem in childhood. It is possible to indicate many reasons for the problem, but most of the times it is caused by the infectious process, as well as the typical adenoid hypertrophy in children. Very often this disease is associated with obstruction of the eustachian tube.OBJECTIVE. In this study, the authors present the results of the hearing tests of patients who underwent the treatment of the eustachian tube obstruction by pneumotherapy with otovent. The aim of the work was to monitor the effectiveness of this method of OME treatment.RESEARCH GROUP AND METHODOLOGY. The research group consisted of 54 children aged 4 to 15 years, including 23 girls and 31 boys. The control group consisted of 16 children. Pure tone audiometry and impedance audiometry were performed before and after the therapy, for all of the participants.RESULTS. Obtained results of the study showed improvement in hearing in children correctly using the Otovent set. Hearing improvement was recorded both in the results of pure tone audiometry and impedance audiometry.CONCLUSIONS. The obtained results showed the effectiveness of the pneumotherapy method. In the case of the research group, 81.4% of children achieved the auditory norm (44 people). In the case of the control group, after a fixed period of application of the Otovent set, this value was 0%. The intergroup comparative analysis clearly shows that the research group obtained significantly better results within all of the parameters assessed, than the control group.

APA, Harvard, Vancouver, ISO, and other styles

20

Qiu, William W., Shengguang S. Yin, Fred J. Stucker, and Mardjohan Hardjasudarma. "Audiological findings in glomus tumours." Journal of Laryngology & Otology 111, no. 3 (1997): 218–22. http://dx.doi.org/10.1017/s0022215100136953.

Full text

Abstract:

AbstractGlomus tumours involving the middle ear and the cerebellopontine angle are reported with emphasis on audiological findings. Magnetic resonance imaging (MRI), angiographic and pathological results are presented. Audiological tests, including impedance audiometry, evoked otoacoustic emissions and auditory brainstem responses, are valuable in evaluation of the effect of glomus tumours on the auditory system as well as their pathological extent.

APA, Harvard, Vancouver, ISO, and other styles

21

Painton, Stephen W., and Michael B. Shaw. "Aural Pain Resulting from Acoustic Reflex." Annals of Otology, Rhinology & Laryngology 97, no. 2 (1988): 131–32. http://dx.doi.org/10.1177/000348948809700207.

Full text

Abstract:

We present an unusual case of physical discomfort, as opposed to objective or subjective tinnitus, caused by a unilateral acoustic reflex. The cause of the discomfort was identified audiologically by the use of acoustic impedance audiometry. The dull pain that was elicited upon contraction and relaxation of the stapedius muscle was eliminated with sectioning of the stapedial tendon. No explanation of the mechanism for the pain is suggested at present.

APA, Harvard, Vancouver, ISO, and other styles

22

Tonini, Ross, Charles Ballay, and Spiros Manolidis. "Auditory Steady-State Response Audiometry in Profound SNHL: The Impact of Abnormal Middle Ear Function." Ear, Nose & Throat Journal 84, no. 5 (2005): 282–88. http://dx.doi.org/10.1177/014556130508400511.

Full text

Abstract:

Auditory steady-state response (ASSR) audiometry is a commercially available tool that is used to predict behavioral auditory threshold levels. Its particular value stems from the technology's ability to measure frequency-specific responses in the background electroencephalogram to auditory stimuli presented across a broad range of frequencies and sound pressure levels. It is clearly of benefit when used to assess threshold levels in infants and children with severe-to-profound hearing impairment (i. e., cochlear implant candidates). Although numerous authors have provided evidence of the usefulness of ASSR testing, their reports have concerned patients whose middle ear impedance measures were normal. We report the cases of 2 patients who, following improvement of abnormal middle ear impedance values, experienced a marked improvement in measurable thresholds by ASSR testing.

APA, Harvard, Vancouver, ISO, and other styles

23

Tsunoda, Koichi, Shizue Takahashi, Minako Takanosawa, and Yoshitaka Shimoji. "The influence of pregnancy on sensation of ear problems – ear problems associated with healthy pregnancy." Journal of Laryngology & Otology 113, no. 4 (1999): 318–20. http://dx.doi.org/10.1017/s0022215100143877.

Full text

Abstract:

AbstractWe wondered how many women had experienced a sensation of fullness in the ear during pregnancy. To address this question, data were obtained from a group of healthy women who attended the gynaecology clinic in our hospital as pregnancy cases between February 1995 and January 1998 and who volunteered to participate in our study. A control group was drawn from healthy female co-medical staff members of our hospital who had never been pregnant. The data used for comparing the two groups were taken from a questionnaire about ear problems that was presented to all subjects. The results suggest that ear problems may be increased in pregnancy, particularly for hypotensive pregnant women. However, even for pregnant women complaining of ear problems, pure-tone audiometry and impedance audiometry showed normal hearing in all cases. Furthermore, these women's complaints resolved completely on delivery of their babies.

APA, Harvard, Vancouver, ISO, and other styles

24

Subramaniam, Vijayalakshmi, Manuprasad S, Hebin H. Kallikkadan, and Vijay Kumar K. "Otological and audiological manifestations in cleft lip and cleft palate children: a clinical study." International Journal of Otorhinolaryngology and Head and Neck Surgery 1, no. 1 (2015): 7. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20150579.

Full text

Abstract:

Background: Cleft lip and cleft palate are the commonest congenital anomalies of the orofacial region. The incidence of middle ear problems and hearing loss is reported to be higher in children with cleft palate &amp;/or cleft lip.Methods: A prospective, observational case-control study comprising 80 subjects (40 cases and 40 controls) was undertaken at Yenepoya Medical College Hospital, Mangalore, Karnataka, India. All subjects enrolled were subjected to detailed ENT examination including otoscopy, pure tone audiometry and impedance audiometry. Results: Retracted tympanic membrane suggestive of Otitis Media with Effusion (OME) and conductive hearing loss was observed in more than 50% of patients with cleft palate &amp;/or cleft lip. Tympanogram of B type suggesting OME was observed in 27% of cases. Chronic otitis media was observed in 32.5% of cases.Conclusions: The prevalence of OME, Chronic otitis media and hearing loss was observed to be higher among children with cleft palate &amp;/or cleft lip. Otological and audiometric assessment should be performed for all patients having cleft palate &amp;/or cleft lip atleast before surgery in order to facilitate early identification and intervention for middle ear problems particularly middle ear effusion.

APA, Harvard, Vancouver, ISO, and other styles

25

Hullar, Timothy E. "Vascular Pulsations on Impedance Audiometry as a Sign of a Third-Mobile Window Lesion." Otology & Neurotology 31, no. 4 (2010): 565–66. http://dx.doi.org/10.1097/mao.0b013e3181db7324.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

K., Vinod M., Amanjot Kaur, Jagdeepak Singh, et al. "A study of clinical and audiometric profile in patients presenting with sudden sensorineural hearing loss." International Journal of Otorhinolaryngology and Head and Neck Surgery 3, no. 2 (2017): 336. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20171189.

Full text

Abstract:

Background: To assess the clinical and audiometric profile in patients presenting with sudden sensorineural hearing loss (SSNHL).The study also aimed to find out any possible etiology of SSNHL, prognostic factors and effectiveness of treatment. Prospective, open label, randomized study conducted in department of ENT at the Ram Lal eye and ENT hospital attached to Government medical college, Amritsar, Punjab, India.Methods: 50 patients of either sex aged between 18 to 50 years suffering from unilateral or bilateral onset SSNHL included in the study on the basis of predetermined clinical criteria. The hearing assessments of patients were done before and after the treatment with tuning fork tests, pure-tone and impedance audiometry. Results: Most of the patients of SSNHL presented with unknown etiology. Steroid treatment gave a statistically significant improvement in pure tone averages. Maximum improvement is observed in patients who started treatment within one month of developing SSNHL. Post-treatment outcomes were not influenced by age of the patient and type of the pure tone audiometry graph. The presence of vertigo and diabetes are bad prognostic factors for hearing outcome in SSNHL.Conclusions: Most of the cases of sudden sensorineural hearing loss have unknown etiology. Patients with associated DM and vertigo are having poor recovery of hearing. Early starting of treatment gives maximum improvement of hearing.

APA, Harvard, Vancouver, ISO, and other styles

27

Pooja, Pradeep, Karuthedeth Sridevi, Anie Melootil Thomas, Ariyamparampil Rajagopalan Vinayakumar, and Pulakkil Arun. "Changes in the hearing threshold using high frequency audiometry in medical personnel exposed to ionizing radiation." International Journal of Otorhinolaryngology and Head and Neck Surgery 4, no. 6 (2018): 1411. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20184352.

Full text

Abstract:

Background: Effect on sensorineural hearing loss by low dose ionizing radiation exposure in radiation workers has been rarely evaluated. A case control study was done among the radiation associated workers and normal subjects.Methods: The study was designed in low dose of radiation exposing healthy medical personnel. Age and sex matched healthy control group of subjects were selected. Groups were evaluated by normal otoscopic evaluation; normal tuning fork test and normal standard pure tone audiogram at frequencies from 250 to 8000 Hz. They underwent impedance audiometry, transient evoked otoacoustic emissions, and high frequency audiometry (from frequencies 10000 to 20000 Hz) was done. Results: No statistically significant difference was found in the results of impedance audiometry, transient evoked otoacoustic emissions and standard pure tone audiogram from 250 to 8000 Hz between cases and controls. In the high frequency range, statistically significant difference was observed (p=0.0001). Mean thresholds were higher at all frequencies in cases compared to controls, except at 4000 Hz. A statistically significant correlation was found between duration of exposure and thresholds at 500 Hz (p=0.014) and 10000 Hz (p=0.048). Tinnitus, vertigo, ear block, hard of hearing and loss of appetite were seen more in cases, but was not significant.Conclusions: Taking account of the very low incidence of nerve and parathyroid injury in this series, the authors suggest that meticulous capsular dissection is superior to dissection of the entire nerve in avoiding transcient nerve damage as well as temporary hypocalcemia. However it is stated that a deliberate search for the nerve is definitely indicated in cases where there is likely to be distorted anatomy, as in infiltrating malignancies and recurrent thyroidectomies.

APA, Harvard, Vancouver, ISO, and other styles

28

Zipfel, Terrence E., Srinivas R. Kaza, and J. Scott Greene. "Middle-ear myoclonus." Journal of Laryngology & Otology 114, no. 3 (2000): 207–9. http://dx.doi.org/10.1258/0022215001905120.

Full text

Abstract:

Tinnitus produced by repetitive contraction of the middle-ear muscles is a rare condition. We present an interesting case of bilateral middle-ear myoclonus causing incapacitating tinnitus in a patient with multiple sclerosis. Otological examination demonstrated rhythmic involuntary movement of the tympanic membrane. These movements correlated with a rhythmic ‘rushing wind’ noise perceived by the patient. Oropharyngeal examination showed no evidence of palatal myoclonus. Impedance audiometry confirmed rhythmic change in the middle-ear volume. Medical management was unsuccessful. The patient’s tinnitus was subsequently cured with bilateral sectioning of the tensor tympani and stapedial tendons.

APA, Harvard, Vancouver, ISO, and other styles

29

Raj-Koziak, Danuta, Elżbieta Gos, Justyna Kutyba, Henryk Skarzynski, and Piotr H. Skarzynski. "Decreased Sound Tolerance in Tinnitus Patients." Life 11, no. 2 (2021): 87. http://dx.doi.org/10.3390/life11020087.

Full text

Abstract:

(1) Background: Decreased sound tolerance is a significant problem in tinnitus sufferers. The aim of the study was to evaluate the relationship between tinnitus and decreased sound tolerance (hyperacusis and misophonia). (2) Methods: The study sample consisted of 74 patients with tinnitus and decreased sound tolerance. The procedure comprised patient interviews, pure tone audiometry, impedance audiometry, measurement of uncomfortable loudness levels, and administration of the Hyperacusis Questionnaire, Tinnitus Handicap Inventory, and Visual Analogue Scales. (3) Results: The majority (69%) of the patients reported that noise aggravated their tinnitus. The correlation between tinnitus and hyperacusis was found to be statistically significant and positive: r = 0.44; p < 0.01. The higher the tinnitus severity, the greater the hyperacusis. There was no correlation between misophonia and hyperacusis (r = 0.18; p > 0.05), or between misophonia and tinnitus (r = 0.06; p > 0.05). (4) Conclusions: For tinnitus patients the more significant problem was hyperacusis rather than misophonia. The diagnosis and treatment of decreased sound tolerance should take into account not only audiological, but also psychological problems of the patients.

APA, Harvard, Vancouver, ISO, and other styles

30

Lachowska, Magdalena, Monika Prus-Ostaszewska, and Kazimierz Niemczyk. "Distortion-product otoacoustic emission phase shift test (Shift-DPOAE) – methodology of measurements and interpretation of results in example cases." Polski Przegląd Otorynolaryngologiczny 8, no. 4 (2020): 1–5. http://dx.doi.org/10.5604/01.3001.0013.7953.

Full text

Abstract:

Aim: The aim was to present methodology and interpretation of results of phase shift distortion-product otoacoustic emissions (Shift-DPOAE) in healthy subjects and patients with Meniere’s disease in remission stage and at the time of attack. Material and methods: Shift-DPOAE was performed in two healthy subjects without any otologic or neurologic problems and in six patients diagnosed with Meniere’s disease. Results obtained in eight subjects are oresented. The following tests were performed in all subjects: detailed otoscopy, impedance audiometry, pure tone audiometry, DPOAE, and Shift-DPOAE. Results: The normal Shift-DPOAE results obtained in two healthy subjects as well as the normal (two subjects) and abnormal (four subjects) Shift-DPOAE results obtained in patients with Meniere's disease are presented in order to thoroughly discuss the methodology and interpretation of the Shift-DPOAE study. Conclusions: The Shift-OAE is a promising diagnostic tool with great clinical potential in the diagnosis and monitoring of Meniere's disease in patients whose hearing has not yet been damaged. This examination is completely non-invasive, it can be carried out immediately after an attack of the disease with symptoms present at the time of the test, and it takes just a few minutes.

APA, Harvard, Vancouver, ISO, and other styles

31

Ustinovich, K. N., and E. P. Merkulova. "Features of impedance audiometry in children of the first months of life after acute otitis media." Vestnik otorinolaringologii 86, no. 3 (2021): 41. http://dx.doi.org/10.17116/otorino20218603141.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

de Melo, Ana, Cibele Santos, and Andréa Lopes. "A study of the high-frequency hearing thresholds of dentistry professionals." International Archives of Otorhinolaryngology 16, no. 02 (2012): 226–31. http://dx.doi.org/10.7162/s1809-97772012000200012.

Full text

Abstract:

Summary Introduction: In the dentistry practice, dentists are exposed to harmful effects caused by several factors, such as the noise produced by their work instruments. In 1959, the American Dental Association recommended periodical hearing assessments and the use of ear protectors. Aquiring more information regarding dentists', dental nurses', and prosthodontists' hearing abilities is necessary to propose prevention measures and early treatment strategies. Objective: To investigate the auditory thresholds of dentists, dental nurses, and prosthodontists. Method: In this clinical and experimental study, 44 dentists (Group I; GI), 36 dental nurses (Group II; GII), and 28 prosthodontists (Group III; GIII) were included, , with a total of 108 professionals. The procedures that were performed included a specific interview, ear canal inspection, conventional and high-frequency threshold audiometry, a speech reception threshold test, and an acoustic impedance test. Results: In the 3 groups that were tested, the comparison between the mean hearing thresholds provided evidence of worsened hearing ability relative to the increase in frequency. For the tritonal mean at 500 to 2,000 Hz and 3,000 to 6,000 Hz, GIII presented the worst thresholds. For the mean of the high frequencies (9,000 and 16,000 Hz), GII presented the worst thresholds. Conclusion: The conventional hearing threshold evaluation did not demonstrate alterations in the 3 groups that were tested; however, the complementary tests such as high-frequency audiometry provided greater efficacy in the early detection of hearing problems, since this population's hearing loss impaired hearing ability at frequencies that are not tested by the conventional tests. Therefore, we emphasize the need of utilizing high-frequency threshold audiometry in the hearing assessment routine in combination with other audiological tests.

APA, Harvard, Vancouver, ISO, and other styles

33

Holtby, I., D. P. Forster, and U. Kumar. "Pure tone audiometry and impedance screening of school entrant children by nurses: evaluation in a practical setting." Journal of Epidemiology & Community Health 51, no. 6 (1997): 711–15. http://dx.doi.org/10.1136/jech.51.6.711.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Majumder, N. K., Isha Tyagi, and Elizabeth. "Role of Impedance audiometry in diagnosing the type of otosclerotic focus and in post-operative follow-up." Indian Journal of Otolaryngology 40, no. 1 (1988): 5–8. http://dx.doi.org/10.1007/bf02993079.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Gupta, Vikasdeep, Sunder Singh Dogra, Pardeep Bansal, et al. "Hearing impairment in patients of hypothyroidism in sub Himalayan region." International Journal of Otorhinolaryngology and Head and Neck Surgery 6, no. 8 (2020): 1494. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20203202.

Full text

Abstract:

Background: The objective of the study was to assess the hearing impairment in patients of hypothyroidism.Methods: A prospective clinical study has done at a referral centre included 33 diagnosed patients of hypothyroidism in the age group of 15 to 65 years, fulfilling the inclusion and exclusion criteria who attended the outpatient department. The diagnosis of hypothyroidism was confirmed by thyroid function tests i.e., serum T3, T4 and TSH levels while hearing assessment was done using tuning fork tests, pure tone audiometry, impedance audiometry and otoacoustic emissions. Hearing impairment was measured in decibels of hearing loss, or dB HL and graded as mild, moderate, moderately severe, severe, or profound. Results: Percutaneous transluminal angioplasty showed 42.7% of the patients had high frequency sensorineural type of hearing loss. The air bone gap was not significant. On tympanometry, all the patients had type A graph and distortion product otoacoustic emissionss in all patients were pass.Conclusions: Acquired hypothyroidism affects primarily high frequency hearing thresholds causing high frequency sensorineural hearing loss, with little or no effect on lower frequencies.

APA, Harvard, Vancouver, ISO, and other styles

36

Kwatra, Devanshu, Sunil Kumar, Gautam Bir Singh, Ratna Biswas, and Prabhakar Upadhyay. "Does hearing loss relate to gestational diabetes mellitus?" International Journal of Otorhinolaryngology and Head and Neck Surgery 5, no. 5 (2019): 1244. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20193863.

Full text

Abstract:

Background: This study aims to check if gestational diabetes mellitus leads to changes in hearing.Methods: A prospective hospital based observational study was performed with total 60 subjects in age group of 18-40 years in the Department of Otolaryngology and Head and Neck Surgery and the Department of Obstetrics and Gynaecology, Lady Hardinge Medical College, New Delhi between November 2016 to March 2018. Subjects were divided in two groups. The first group included 30 pregnant women with diagnosed gestational diabetes mellitus and the second group had 30 pregnant women not having gestational diabetes mellitus. Pure-tone audiometry and impedance audiometry was performed twice in all the subjects, first during the antepartum period and second time during the postpartum period. Results: Significant difference was seen between the average of air conduction threshold values at speech frequencies between the two groups during both antepartum and postpartum period.Conclusions: The alterations in hearing sensitivity in air conduction between the two groups can be attributed to gestational diabetes mellitus.

APA, Harvard, Vancouver, ISO, and other styles

37

Pilka, Edyta, W. Wiktor Jedrzejczak, Krzysztof Kochanek, Malgorzata Pastucha, and Henryk Skarzynski. "Assessment of the Hearing Status of School-Age Children from Rural and Urban Areas of Mid-Eastern Poland." International Journal of Environmental Research and Public Health 18, no. 8 (2021): 4299. http://dx.doi.org/10.3390/ijerph18084299.

Full text

Abstract:

(1) Background: The purpose of this study was to assess the prevalence of hearing loss in school-age children from rural and urban areas of mid-eastern Poland using standard audiological tests—pure tone audiometry (PTA), impedance audiometry (IA), and otoacoustic emissions (OAEs). (2) Methods: Data were collected from a group of 250 children aged 8 to 13, made up of 122 children from urban areas and 128 children from rural areas of mid-eastern Poland. Hearing was assessed in each of the subjects by means of PTA, IA (tympanometry), and transient-evoked OAEs (TEOAEs). Otoscopy was also performed. (3) Results: There were significantly fewer abnormal results in children from urban than rural areas: they were, respectively, 10.1% and 23.1% for IA, 3% and 9.7% for PTA, and 17.3% and 31.8% for TEOAEs. For hearing-impaired ears in rural areas (failed TEOAE), hearing thresholds were, on average, 11.5 dB higher at 0.5 kHz than for children in urban areas. Comparison of each PTA result with the corresponding IA showed that all cases of hearing loss were related to malfunction of the middle ear. (4) Conclusions: The results of all three hearing tests were significantly worse in children from rural areas compared to those from urban areas. This indicates that audiological healthcare in rural areas needs improvement and that universal hearing screening programs for school-age children would be helpful.

APA, Harvard, Vancouver, ISO, and other styles

38

Martins, Jorge Humberto, Marisa Alves, Susana Andrade, Isabel Falé, and António Teixeira. "Auditory Processing Disorder Test Battery in European Portuguese—Development and Normative Data for Pediatric Population." Audiology Research 11, no. 3 (2021): 474–90. http://dx.doi.org/10.3390/audiolres11030044.

Full text

Abstract:

There is an increasing need for state-of-the-art Central Auditory Processing assessment for Portuguese native speakers, applicable as early as possible. As a contribution to answering this need, this paper presents a new battery for Central Auditory Processing assessment for European Portuguese applicable to children aged 5 and above, named BAPA-PE, providing information regarding test selection and development. The battery consists of six behavioral tests: Staggered Spondaic Words (SSW) for European Portuguese, Filtered Speech, Speech in Noise, Detection Interval in Noise, Duration, and Frequency Pattern. The normative data for children aged 5 to 12 are also reported. A sample was obtained of 217 subjects without ear pathology and with typical development. Each age group was composed of at least 30 children. All children were evaluated using pure tone audiometry, speech audiometry, impedance, and otoacoustic emissions. Normative scores are reported for each of the six auditory processing tests. The assessment is applicable to young children (aged 5 and 6). The statistical analyses showed significant effects in scores of Age for all tests and of Ear for several tests. The main result from the work presented, the Auditory Processing Assessment Battery—European Portuguese (BAPA-PE), is available for clinical use with normative data. This battery is a new tool for behaviorism assessment of European Portuguese speakers with suspected central auditory pathology and for monitoring the results of auditory training.

APA, Harvard, Vancouver, ISO, and other styles

39

Malick, Nabeel, Raveendra P. Gadag, Vidyashree K. M., and Shruthi Puthukulangara. "Comparative study of type 1 tympanoplasty with and without gelfoam in the middle ear." International Journal of Otorhinolaryngology and Head and Neck Surgery 3, no. 4 (2017): 1036. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20174328.

Full text

Abstract:

Background: Chronic suppurative otitis media is a widespread disease with a significant cause of morbidity with a greater burden in the poor communities of the developing countries for which tympanoplasty is frequently undertaken. Gelfoam may show detrimental effects such as adhesions and fibrosis and improper packing may physically alter the structure of the tympanic membrane leading to failure of tympanoplasty. The graft can be placed without any middle ear supporting agent wherein the graft is held in position by the surface tension between the novel graft placed and the remnant tympanic membrane. This provides the added advantage of facilitating middle ear ventilation through the Eustachian tube. The objectives of the study were to assess the graft uptake and hearing improvement following type 1 tympanoplasty with gelfoam in the middle ear and without gelfoam in the middle ear and to compare and assess results for complicationsMethods: This was a randomised control trial done for a period of one year conducted in the department of otorhinolaryngology and head and neck surgery, Karnataka Institute of Medical Sciences, Hubballi which is a tertiary referral hospital. 30 patients underwent type 1 tympanoplasty without gelfoam in the middle ear and 31 patients underwent type 1 tympanoplasty with gelfoam in the middle ear. Post-operative follow up was done to look for graft uptake, hearing assessment by pure tone audiometry and impedance audiometry was done 90 days post-operatively. Results: Graft uptake was 80% in type 1 tympanoplasty without gelfoam in the middle ear and 80.6% with gelfoam in the middle ear. Both types of surgeries had significant hearing improvement, and complications like retraction and residual perforation were also comparable. Ad type of impedance curve is most common post operatively.Conclusions: Graft uptake is equally good in cases with gelfoam and without gelfoam. Hearing gain is comparable in both groups of patients. No significant complications occurred in our study. ‘Ad’ is the most common type of impedance curve after surgery. Long term follow up is important in these patients.

APA, Harvard, Vancouver, ISO, and other styles

40

Lau, S. K., W. I. Wei, J. S. T. Sham, D. T. K. Choy, and Y. Hui. "Early changes of auditory brain stem evoked response after radiotherapy for nasopharyngeal carcinoma—A prospective study." Journal of Laryngology & Otology 106, no. 10 (1992): 887–92. http://dx.doi.org/10.1017/s002221510012119x.

Full text

Abstract:

AbstractA prospective study of the effect of radiotherapy for nasopharyngeal carcinoma on hearing was carried out on 49 patients who had pure tone, impedance audiometry and auditory brain stem evoked response (ABR) recordings before, immediately, three, six and 12 months after radiotherapy. Fourteen patients complained of intermittent tinnitus after radiotherapy. We found that 11 initially normal ears of nine patients developed a middle ear effusion, three to six months after radiotherapy. There was mixed sensorineural and conductive hearing impairment after radiotherapy. Persistent impairment of ABR was detected immediately after completion of radiotherapy. The waves I–III and I–V interpeak latency intervals were significantly prolonged one year after radiotherapy. The study shows that radiotherapy for nasopharyngeal carcinoma impairs hearing by acting on the middle ear, the cochlea and the brain stem auditory pathway.

APA, Harvard, Vancouver, ISO, and other styles

41

Bahmad Jr, Fayez, Carolina Cardoso, Fernanda Caldas, et al. "Hearing Rehabilitation through Bone-Conducted Sound Stimulation: Preliminary Results." International Archives of Otorhinolaryngology 23, no. 01 (2018): 012–17. http://dx.doi.org/10.1055/s-0038-1670694.

Full text

Abstract:

Introduction The bone-anchored hearing aid (BAHA) is a bone conduction system that transmits the sound directly to the inner ear by surpassing the skin impedance and the subcutaneous tissue. It is indicated for patients with mixed, conductive and unilateral sensorineural hearing loss who did not benefit from conventional hearing aids (HAs). Although the benefits from BAHA are well demonstrated internationally, this field still lacks studies in Brazil. Objective To assess the auditory rehabilitation process in BAHA users through audiological, speech perception and tinnitus aspects. Methods Individuals with hearing loss were assessed before and after the implantation. The participants were subjected to pure tone audiometry in free field, functional gain audiometry, speech perception tests, tinnitus handicap inventory (THI) in open format, and to the visual analog scale (VAS). Results It was found that the participants benefited from the use of BAHA. The difference in the performance of the participants before and after the BAHA surgery was significant in terms of hearing acuity. There was no statistically significant difference in the speech perception tests. The tinnitus assessment showed that 80% of the participants scored slight tinnitus severity in THI after using a BAHA. Eighty percent of the participants classified their tinnitus as absent to mild in the VAS after the surgery. Conclusion Based on the results of the current study, we can conclude that the participants improved both the auditory perception and the tinnitus handicap.

APA, Harvard, Vancouver, ISO, and other styles

42

Swain, Santosh Kumar. "Hearing loss, tinnitus and vertigo among pediatric patients with COVID-19 infections: a review." International Journal of Contemporary Pediatrics 8, no. 10 (2021): 1756. http://dx.doi.org/10.18203/2349-3291.ijcp20213744.

Full text

Abstract:

Coronavirus disease 2019(COVID-19) is a rapidly spreading contagious respiratory disease caused by the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2) which manifests a plethora of health concerns. It may manifest with a wide range of clinical symptoms from no symptoms to respiratory failure and even multi-organ dysfunctions. The COVID-19 infection may present with otological manifestations such as hearing loss, tinnitus, vertigo, and otalgia. The otological manifestations may be due to the involvement of the eustachian tube and cochlea by COVID-19 infections. The damaging effect of the COVID-19 infection on the inner ear is a new finding which is yet to be explored. Pure tone audiometry and impedance audiometry are two important investigations for auditory assessment among pediatric patients with COVID-19 infection. Although hearing loss, tinnitus and vertigo are not common as fever and cough in COVID-19 patients, however, auditory-vestibular symptoms significantly affect the quality of life. Additionally, the anxiety associated with COVID-19 infections may attribute to aggravation of otoneurological symptoms like tinnitus. However, these otoneurological manifestations like hearing loss will affect the speech of the pediatric patients and result in morbid life in the current COVID-19 pandemic. Clinicians or pediatricians should be aware of the otoneurological manifestation in pediatric COVID-19 patients for early identification and management. This review article discusses the details of this epidemiology, etiopathology, assessment, and management of hearing loss, tinnitus, and vertigo among COVID-19 pediatric patients.

APA, Harvard, Vancouver, ISO, and other styles

43

Zając - Ratajczak, Iwona, Agata Szkiełkowska, and Karina Wilhelmsen. "Assesment effectiveness of treatment Eustachian tube dysfunction using pneumatic inhaler AMSA." Otolaryngologia Polska 70, no. 6 (2016): 6–11. http://dx.doi.org/10.5604/01.3001.0009.3737.

Full text

Abstract:

Introduction: Upper respiratory tract infections are common childhood diseases. Children are more susceptible to middle ear infections because their Eustachian tube is short, straight and wide. As a consequence of these inflammatory changes while impaired patency of the Eustachian tube often arises conductive hearing. Objective: The aim of this study was to Assessment effectiveness of treatment Eustachian tube dysfunction using inhaler AMSA. Material and Methods: The study group comprised 30 patients. Same was in the control group. All patients reported conductive hearing loss. Test group was treated as an inhaler AMSA. The control group was treated pharmacologically. Patients were examined with the use of pure-tone audiometry, and impedance at baseline, after one week and four weeks. Results: Statistical analysis showed improvement in the studied parameters in patients treated with inhaler AMSA in a much shorter time than patients treated with pharmacotherapy.

APA, Harvard, Vancouver, ISO, and other styles

44

Han, Kyu-Hee, and Jun Ho Lee. "Diagnosis of Middle Ear Effusion in Neonate and Infant: Pitfalls of Conventional Impedance Audiometry Using 226 Hz Probe Tone." Korean Journal of Otorhinolaryngology-Head and Neck Surgery 55, no. 7 (2012): 410. http://dx.doi.org/10.3342/kjorl-hns.2012.55.7.410.

Full text

APA, Harvard, Vancouver, ISO, and other styles

45

Tadke, Kanchan Rahul, Vaibhav J. Lahane, and P. T. Wakode. "Role of Impedance Audiometry in Evaluation of Eustachian Tube Function and Its Correlation with Tympanoplasty Surgery Outcome: Our Experience." IOSR Journal of Dental and Medical Sciences 16, no. 6 (2017): 45–49. http://dx.doi.org/10.9790/0853-1606024549.

Full text

APA, Harvard, Vancouver, ISO, and other styles

46

Gupta, Vani Krishana, Mahesh Bhat, Vinay Vaidyanathan Rao, and Vishak Surendra. "Assessment of Hearing Loss in Patients Receiving Chemoradiotherapy in Adjuvant Setting for Head and Neck Malignancy." Annals of Otology and Neurotology 3, no. 01 (2020): 16–22. http://dx.doi.org/10.1055/s-0040-1715289.

Full text

Abstract:

Abstract Introduction The aim of the study is to assess the hearing loss in patients who receive chemoradiation (chemoradiotherapy or CTRT) for head and neck malignancies. Materials and Methods Prospective study was conducted in the Department of ENT of a tertiary care center from September 2013 to August 2014. Forty patients suffering from head and neck malignancies (histologically proven) were included in the study. Patients with pre-existing hearing loss were excluded. All patients received radiotherapy dose of 66 to 70 Gy given as 2 Gy/d, 5 d/wk and chemotherapy dose of cisplatin 35 mg/m2 once a week for 6 weeks. Hearing was assessed by pure tone audiometry (PTA) and impedance audiometry conducted at regular intervals. Mcnemars chi-square test was used to compare the impedance and paired t-test and Pearson’s correlation were used to compare PTA at various stages. Results Predominantly male patients (28) falling in the age group of 40 to 60 years, suffered from various head and neck cancer, most common being oropharynx (14). Twenty patients developed sensorineural hearing loss (SNHL)—11(55%) had mild, seven (35%) had moderate, and two (10%) had severe grade of SNHL. Majority of these patients, 12 (60%) started developing SNHL mid-therapy, five (25%) at the completion of therapy and three (15%) 3 months post-therapy. Hearing loss was found to be more with two-dimensional radiotherapy (2DRT) and three-dimensional radiotherapy (3DRT) than with intensity-modulated radiotherapy (IMRT) as assessed by serial PTA. The average dose of radiation to right and left ears, respectively were 27.10 and 24.66 Gy. The incidence of otitis media with effusion increased during the treatment accounting for the conductive hearing loss irrespective of the modality of radiation used. Conclusion CTRT causes significant hearing loss in patients suffering from head and neck malignancies leading to further increase in the morbidity. Screening audiological assessment would be helpful to know the pretherapy status of the ear. Using newer modalities like IMRT can reduce hearing loss. Regular audiological screening can catch it at its onset and help in early use of hearing aids.

APA, Harvard, Vancouver, ISO, and other styles

47

Sharma, Shivani, Rakesh Thakur, and Sunder S. Dogra. "Audiological Functions in Pregnancy." Journal of South Asian Federation of Obstetrics and Gynaecology 9, no. 1 (2017): 42–46. http://dx.doi.org/10.5005/jp-journals-10006-1455.

Full text

Abstract:

Introduction During pregnancy virtually every organ system undergoes anatomical and physiological changes that can alter appreciably the criteria for diagnosis and treatment of diseases. Hormonal fluctuations alter the composition of endolymph and perilymph, and ion transport process. Hence, audiological functions in pregnancy need evaluation. Materials and methods After approval of Institutional Ethics Committee, 100 pregnant women were recruited in the 1st trimester. Tuning tests were done using 128, 256, 512, and 1024 Hz tuning forks. Pure tone audiometry was done and hearing thresholds measured for 125, 250, 500, 1000, 2000, and 4000 Hz. Finally, impedance audiometry was done in all the women in each trimester. Results There was no air—bone gap. There was gradual reduction in hearing acuity at low frequencies (125, 250, 500, and 1000 Hz) from 1st to 3rd trimester of pregnancy. The hearing thresholds got stabilized in the 3rd trimester and returned to normal in postpartum period. For 2000 Hz and higher frequencies, there was no significant difference in relation to pregnant subjects. Number of pregnancies did not affect the audiological functions. Conclusion Low-frequency hearing loss during pregnancy appears to be transient in nature with complete resolution in the postpartum period in most cases. For better understanding of these changes, obstetricians and otolaryngologists can team-up and avoid use of drugs for their symptoms during pregnancy. How to cite this article Verma A, Thakur R, Dogra SS, Sharma S, Singhal A. Audiological Functions in Pregnancy. J South Asian Feder Obst Gynae 2017;9(1):42-46.

APA, Harvard, Vancouver, ISO, and other styles

48

Shidlovskaya, Tetiana, Kateryna Kurenyova, Elena Poimanova, and Yurii Molochek. "Detection of concomitant pathology of the middle ear according to tympanometry in children with hoarseness." OTORHINOLARYNGOLOGY, no. 1(2) 2019 (March 9, 2019): 71–76. http://dx.doi.org/10.37219/2528-8253-2019-1-71.

Full text

Abstract:

Aim: to study of the state of the vocal apparatus in children with hoarseness using videolaryngoscopy and assessment of the state conducting part of the auditory analyzer according impedance audiometry. Materials and methods: 24 children aged 4 to 10 years old were examined, whose parents complained of hoarseness in children (from several weeks to 1 year). Perceptual voice assessment in children showed hoarseness of the voice of varying degrees. Videolaryngoscopic examination was performed using a videolaryngoscope of the company «Karl Shtorz» (Germany), impedancemetry – using a clinical impedancemeter «Siemens SD-30» (Germany). Results: After examining the state of the voice apparatus and the middle ear in children with complaints about the hoarseness, we have found that according to videolaryngoscopy, they have changes in the form of swollenness, a slight hyperemia of vocal folds. According to the impedance measurement, in 17 out of 24 patients, a tympanogram of type «C» was detected, and in 7 of them there was a pronounced reduction of compilation of the tympanogram, indicating certain violations in the sound conduction system. Conclusion: When examining children with voice impairment, it is important to adhere to a comprehensive approach to diagnosis and to evaluate not only the state of the vocal apparatus, but also to remember the possible accompanying pathology of the nasopharynx, the nose and the auditory analyzer.

APA, Harvard, Vancouver, ISO, and other styles

49

Chadha, S. K., K. Gulati, S. Garg, and A. K. Agarwal. "Prevalence of ear diseases in the children of Delhi." Journal of Laryngology & Otology 129, no. 5 (2015): 425–29. http://dx.doi.org/10.1017/s002221511500081x.

Full text

Abstract:

AbstractObjective:This study aimed to assess the prevalence and profile of ear diseases in children from Delhi, India.Methods:A population-based cross-sectional door-to-door survey was carried out in two districts of Delhi, and involved children of all demographic sections of the region. A total of 4626 children aged between 18 days and 15 years underwent examinations including otoscopy, impedance audiometry and hearing screening.Results:In all, 14.8 per cent of the study sample was diagnosed with one or more ear morbidities, the most common being cerumen impaction (7.5 per cent) and chronic suppurative otitis media (3.6 per cent). There was clinical evidence of otitis media with effusion in 2 per cent of children, and 0.96 per cent had otitis externa (bacterial and fungal). The point prevalence of acute suppurative otitis media was 0.39 per cent. In all, 0.45 per cent of children were found to have an undiagnosed foreign body within the ear canal.Conclusion:The high prevalence of ear disease poses a significant public health problem in Delhi.

APA, Harvard, Vancouver, ISO, and other styles

50

Makwana, Abhijit V., Pratik Sharma, Shifa Vyas, Rahul Nahar, and Maya Singh. "Cross sectional study of sensorineural hearing loss in type 2 diabetes mellitus." International Journal of Otorhinolaryngology and Head and Neck Surgery 5, no. 6 (2019): 1533. http://dx.doi.org/10.18203/issn.2454-5929.ijohns20194570.

Full text

Abstract:

Background: The objective of the study was to evaluate the prevalence of sensorineural hearing loss in type 2 diabetes mellitus and to figure out a relation between age, sex, duration of diabetes and diabetic control.Methods: A cross-sectional study was conducted at Geetanjali Medical College and Hospital for 1.5 years. Patients were known case of diabetes mellitus type 2 without any other systemic illness included in the study. A total of 115 patients were involved in the study and the informed consent was taken. A detailed examination and history related to hearing loss and diabetes status with treatment was elicited. All basic blood investigations were performed on all the patients. All the patients were subjected to pure tone audiometry and impedance audiometry in a sound proof room. Results: The total prevalence of sensorineural hearing loss in the study subjects was found to be 80% with most of them having mild degree of sensorineural deafness. Increase in age, longer duration and uncontrolled diabetes are the factors which had higher risk of developing sensorineural hearing loss in the study subjects.Conclusions: There is a strong association between sensorineural hearing loss and duration of diabetes mellitus-2. The threshold of hearing loss is increased mainly at the higher frequencies with diabetes.

APA, Harvard, Vancouver, ISO, and other styles

Journal articles on the topic 'Audiometry, Impedance'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles