It is important to measure changes in the bone-conduction threshold when evaluating whether FGF-2 can be used to repair blast-induced total or near-total tympanic membrane perforations

2017 ◽  
Vol 38 (2) ◽  
pp. 267-268
Author(s):  
Xudan Lou
Keyword(s):  
Tympanic Membrane ◽  
Bone Conduction ◽  
Bone Conduction Threshold ◽  
Tympanic Membrane Perforations

scholarly journals Hearing gain after myringoplasty in relation to the size of tympanic membrane perforation

2020 ◽  
Vol 25 (1) ◽  
pp. 54-59
Author(s):  
Sutanu Kumar Mondal ◽  
Ashim Kumar Biswas ◽  
Md Mahmudul Huq ◽  
Md Hasan Ali ◽  
Md Kamruzzaman ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Tympanic Membrane ◽  
Bone Conduction ◽  
Tympanic Membrane Perforation ◽  
Medium Size ◽  
Hearing Gain ◽  
Bone Conduction Threshold ◽  
Large Size ◽  
Membrane Perforation ◽  
Air Conduction

Objectives: To assess hearing gain after successful myringoplasty in relation to the size of tympanic membrane perforation. Methods: This cross-sectional study was done in the department of otolaryngology and head neck surgery, BSMMU, Sahbag, Dhaka during the period of January 2009 to December 2010.A total of 60 patients were under went myringoplasty operation after taking detailed history, clinical examination and investigation. Preoperative and postoperative hearing assessment was done. Analysed data presented by various tables, graphics and figures. Results: In case of small size perforation preoperative mean bone conduction threshold was 7.66 dB, mean air conduction threshold was 34.14 dB and mean air bone gap was 26.48 dB. In case of medium size perforation preoperative mean bone conduction threshold was 9.61 dB, mean air conduction threshold was 44.48 dB. Mean air bone gap was 34.87 dB. In case of large size perforation preoperative mean bone conduction threshold was 13.12 dB, mean air conduction threshold was 59 dB, and mean air bone gap was 45.88 dB. Hearing loss increases with increasing size of perforation. Ahmed and Rahim (1979) showed in the study that hearing loss increases with increasing the size of the perforation which was relevant in the study. After myringoplasty post-operative mean air bone gap was 21.24 dB in small size, 21.74 dB in medium sized and 24 dB in large size. From the record improvement of mean air bone gap or hearing gain was 5.24 dB in small size perforation respectively. The different of air bone gap closure between small and medium size perforation was statistically significant by unpaired’ test. Conclusion: Hearing gain after myringoplasty is better in large size perforation. Bangladesh J Otorhinolaryngol; April 2019; 25(1): 54-59

scholarly journals A study to assess hearing improvement after fat graft myringoplasty

2021 ◽  
Vol 7 (2) ◽  
pp. 303
Author(s):  
Nupur Midha ◽  
Gurbax Singh ◽  
Rachna Dhingra ◽  
Rajwant Kaur
Keyword(s):  
Pure Tone ◽  
Bone Conduction ◽  
Pure Tone Audiometry ◽  
Threshold Level ◽  
Fat Graft ◽  
Hearing Improvement ◽  
Suppurative Otitis Media ◽  
Bone Conduction Threshold ◽  
Tympanic Membrane Perforations ◽  
Number Of Patients

<p class="abstract"><strong>Background:</strong> Tympanic membrane perforations result mainly from infectious and traumatic etiologies. Postoperative outcomes of reconstructive surgeries of hearing mechanism have routinely been assessed by take up rates and air bone gap closure on pure tone testing. The present study was conducted to assess hearing improvement after fat graft myringoplasty.</p><p class="abstract"><strong>Methods:</strong> The present prospective study was conducted from 1<sup>st</sup> January 2017 to 30<sup>th</sup> June 2018. The study population consists of patients of age 18 to 60 years. The subjects with safe or tubotympanic type of chronic suppurative otitis media with small dry central perforation or perforation of the pars tensa less than 3 mm were included in the study. Pure tone audiometry (PTA) was consigned to an audiologist who was blind to the study. Air conduction threshold level was measured at frequencies 0.25 to 8 kHz and bone conduction threshold level was measured at frequencies 0.5 to 4 kHz; average air bone gap of each patient was calculated preoperatively and postoperatively at one and three months at the frequencies 500 Hz, 1000 Hz and 2000 Hz.  </p><p class="abstract"><strong>Results:</strong> Among 30 patients, 15 (50.00%) had pre-operative bone conduction threshold in the range of 0-10 dB HL and rest 15 (50.00%) had between 11-20 dB HL. Majority of them i.e. 20 had post-operative air bone gap in the range of 0-10 dB HL whereas 02 had pre op air bone gap in this range, followed by 07 with air bone gap in the range of 11-20 dB HL as compared to 18 in the pre op and 03 in the range of 21-30 dB HL as compared to 10 in the pre op. Paired t test reveals results are significant.</p><p class="abstract"><strong>Conclusions:</strong> Postoperative audiometry at the end of 1 month revealed majority i.e. 14 had air bone gap in range of 0-10 dB HL thus showing improvement in hearing. Postoperative audiometry at the end of 3 months revealed maximum number of patients i.e. 20 in the range of 0-10 dB HL which showed further improvement in hearing in the form of decrease in air bone gap.</p><p class="Default"> </p>

scholarly journals A comparative study between fat myringoplasty and temporalis fascia tympanoplasty in moderate to large central perforation of pars tensa of tympanic membrane

2017 ◽  
Vol 3 (4) ◽  
pp. 997
Author(s):  
Kirti P. Ambani ◽  
Rachana W. Gangwani ◽  
Bhavya B. M. ◽  
Sanket D. Vakharia ◽  
Ashish U. Katarkar
Keyword(s):  
Tympanic Membrane ◽  
Postoperative Infection ◽  
Bone Conduction ◽  
Fat Graft ◽  
Graft Material ◽  
Temporalis Fascia ◽  
Membrane Repair ◽  
Tympanic Membrane Perforations ◽  
Fascia Graft ◽  
Group 2

<p class="abstract"><strong>Background:</strong> To compare the efficacy between fat graft (FG) and temporalis fascia (TF) graft in tympanic membrane perforations larger than 4mm size or involvement of &gt;25% of tympanic membrane.</p><p class="abstract"><strong>Methods:</strong> This prospective study was carried out during December 2015 to January 2016, for a period of 13months at our Otolaryngology Department. All study patients, who fit into inclusion and exclusion criteria, were divided into two groups according to the type of graft material taken. In group- 1temporalis fascia (TF) graft was taken while in group- 2 fat graft (FG) was taken. An evaluation of hearing was done with full Audiometric and Eustaschian tube function testing. All laboratory preoperative testing was done. Postoperative follow up was done at 2<sup>nd</sup>, 3<sup>rd</sup> and 5<sup>th</sup> month’s period and sos, graft status and hearing evaluation with PTA for all four frequencies 500, 1000, 2000 and 4000 Hz with air conduction and bone conduction thresholds were recorded and compared with preoperative PTA records in both groups.  </p><p class="abstract"><strong>Results:</strong> In TF group total 24 (80%) patients had graft uptake, 4 (13.3%) patients had residual perforation and 2 (6.6%) patients had graft failure due to postoperative infection. In FG group total 16 (53.3%) patients had graft uptake, 6 (20%) patients had graft medialised and necrosed, 6 (20%) patients had residual perforation and 2 (6.6%) patient had graft rejection due to postoperative infection. Graft uptake rate in group 1 was 80% while in group 2 was 53.3%. Mean preoperative ABG in TF group was 25±17 dB and mean postoperative ABG was 10±02 dB, in fat graft technique mean preoperative ABG was 25±13 dB and mean postoperative ABG was 16±15 dB. Fat graft technique is simple, quick and minimally invasive. It doesn’t require middle ear manipulation.</p><p><strong>Conclusions:</strong> There is no ideal material for tympanic membrane repair but for moderate to large perforation temporalis fascia graft is better than fat graft in terms of healing and hearing outcomes but considering morbidity fat gives less morbidity. </p>

scholarly journals The correlation between hearing loss and the site of eardrum perforation: about 260 cases

2019 ◽  
pp. 18-21
Author(s):  
Iziki O ◽  
Ahmadou A ◽  
Abdulhakeem B ◽  
Chbaata A ◽  
Rouadi S ◽  
...  
Keyword(s):  
Hearing Loss ◽  
Tympanic Membrane ◽  
Otitis Media ◽  
Bone Conduction ◽  
Computer Software ◽  
Chronic Otitis Media ◽  
Tympanic Membrane Perforation ◽  
University Hospital ◽  
Tympanic Membrane Perforations ◽  
Average Loss

Introduction: Some authors have assumed that the hearing loss depends on the site and the size of the perforations, but the results were contradictory and inconclusive. The aim of this present study is to find correlation between hearing loss and the location of tympanic membrane perforation after a chronic otitis media. Materials and Methods: A retrospective study was conducted in our ENT department, university hospital Ibn Rochd Casablanca Morocco. Two hundred sixty patients were enrolled in this study with eardrum perforation and without any neurosensory hearing loss or middle/ inner ear diseases. Data processing and analysis were carried out with computer software SPSS. Results: Two hundred sixty patients (103 males, 157 females) with age range 8–67 years (mean = 35.9) were studied. Bilateral tympanic membrane perforations were seen in 84 patients (60%), unilateral perforation in 176 patients (68%). In the 260 patients, 253 eardrum perforations were caused by chronic otitis media. Only 7 cases were due to a traumatism. The tympanic perforation was posterior in 64 cases (24.6%), subtotal in 54 cases (20.8%), central in 49 cases (18.8%), anterior in 44 cases (16.9%), antero-superior in 1 case, antero-inferior in 23 cases (8.8%), postero-superior in 5 cases (1.9%), and postero-inferior in 10 cases (3.8%). The tympanic perforation was inferior in 10 cases (3.8%). Perforation’s sites on the tympanic membrane were correlated with the groups of average hearing loss. For anterior perforations the average loss was moderate in 52.3% and severe in 13.6%. For posterior perforations the average loss was moderate in 75%. For subtotal perforation, the percentage was equal for mild and moderate hearing loss. The average loss for anterior perforations was 41.93 dB. The average loss for posterior ones was 42.66 dB. Conclusion: The current study aimed to correlate the degree of hearing loss to the different site of perforation. From the present study we can tell that Hearing loss in chronic otitis media is independent of the site of eardrum perforation. Nevertheless, further studies are needed with a representative population to confirm our results. Keywords: Site of eardrum perforation; Hearing loss; Bone conduction

Correlation between tympanometry volume and three-dimensional computed tomography mastoid volumetry in tympanoplasty candidates

2021 ◽  
pp. 1-5
Author(s):  
L Epprecht ◽  
L Qingsong ◽  
N Stenz ◽  
S Hashimi ◽  
T Linder
Keyword(s):  
Computed Tomography ◽  
Tympanic Membrane ◽  
Cell Volume ◽  
Radiation Injury ◽  
Three Dimensional ◽  
Non Invasive ◽  
Tympanic Membrane Perforations ◽  
Computed Tomography Scans ◽  
Air Cells ◽  
Mastoid Air Cells

Abstract Objective Ventilation of the middle ear and mastoid air cells is believed to play an important role in the pathogenesis of chronic ear disease. Traditionally, ventilation is assessed by computed tomography. However, this exposes patients to cumulative radiation injury. In cases with a perforation in the tympanic membrane, tympanometry potentially presents a non-invasive alternative to measure the ventilated middle-ear and mastoid air cell volume. This study hypothesised that total tympanometry volume correlates with ventilated middle-ear and mastoid air cell volume. Method Total tympanometry volume was compared with ventilated middle-ear and mastoid air cell volume on computed tomography scans in 20 tympanic membrane perforations. Results There was a high correlation between tympanometry and computed tomography volumes (r = 0.78; p < 0.001). A tympanometry volume more than 2 ml predicted good ventilation on computed tomography. Conclusion These results may help reduce the need for pre-operative computed tomography in uncomplicated cases with tympanic membrane perforations.

scholarly journals Comparative study between fat plug and inlay butterfly cartilage grafts for myringoplasty in adults

2021 ◽  
Vol 37 (1) ◽  
Author(s):  
Ahmed Gamal Khafagy ◽  
Mohamed El-Begermy ◽  
Marwa Mohamed El-Begermy ◽  
Pretty O. Afifi
Keyword(s):  
Tympanic Membrane ◽  
Chronic Otitis Media ◽  
Fat Graft ◽  
Cartilage Graft ◽  
Tympanic Membrane Perforations ◽  
Number Of Patients ◽  
Significant Difference ◽  
Hearing Outcomes ◽  
Age Range

Abstract Background This study aims to compare the graft uptake rate and hearing improvement of fat graft versus inlay butterfly tragal cartilage in the repair of perforations in chronic otitis media mucosal in adults. In this retrospective study, twenty-eight patients were included with small dry anteroinferior tympanic membrane perforations (less than 1/3 of the tympanic membrane). The age range was 18 to 44 years old. Myringoplasty was done under general anesthesia for 8 patients with a fat graft (FG) and 20 patients with inlay butterfly cartilage graft (IBCG). Six months postoperatively, a follow-up evaluation was done for successful graft uptake and hearing outcomes. Results The success rate of graft uptake in the first group (fat graft) was 6/8 cases (75%) while in the second group (IBCG) was 19/20 (95%) with no statistically significant difference (P = 0.0148). Also, there was no statistical difference between the two groups as regards postoperative ABG, improvement changes in ABG, and number of patients with improved hearing. Conclusions Inlay butterfly cartilage graft is a useful graft in repairing small tympanic membrane perforations as regard graft take and hearing outcomes.

Autologous Serum Eardrops Therapy With a Chitin Membrane for Closing Tympanic Membrane Perforations

2008 ◽  
Vol 29 (6) ◽  
pp. 791-795 ◽  
Author(s):  
Seiji Kakehata ◽  
Yuki Hirose ◽  
Rei Kitani ◽  
Kazunori Futai ◽  
Shin-ichiro Maruya ◽  
...  
Keyword(s):  
Tympanic Membrane ◽  
Autologous Serum ◽  
Tympanic Membrane Perforations
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