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    Retrospective air bone gap evaluation of patients with tympanic membrane central perforation
    (Canadian Soc Clinical Investigation, 2016) Kucukkavruk, Levent; Temugan, Esra; Kaya, Mesut; Unsal, Selim; Gumus, Nebi Mustafa; Yuksel, Mustafa; Gunduz, Mehmet
    Purpose: The purpose of this study was to evaluate hearing recovery and air-bone gap (ABG) before and after tympanoplasty surgery in patients with tympanic membrane central perforation. Methods: Histories and audiological assessments of 160 cases (total of 26 ears from 22 patients; 11 men and 11 women) from patients who had undergone tympanoplasty surgery and hearing reconstruction due to tympanic membrane central perforation were evaluated. Pre-postoperative audiograms and the pure tone, air-bone hearing thresholds and ABG gains were evaluated. Results: The mean age of the patients was 38.6 years (+/- 16.04). The mean postoperative follow-up period was 13.4 months (+/- 15.5). The mean preoperative ABG was 25.36 dB (+/- 9.9) and postoperative ABG was 17.36 dB (+/- 11.68) (p = 0.001). When four groups were compared before surgery and after surgery period as 0-6 months, 6-12 months, 1-2 years and 2 years in terms of pre-and postoperative ABG values, no statistically significant difference was observed (p>0.05). All patients were divided into three groups: < 20 years of age; between the ages of 21-40; and, > 41 years of age, and no statistically significant difference were found between the groups (p>0.05). Surgeries of the patients 21-40 years of age were more successful (ABG gain) than other age groups. No statistically significant gender differences were found in ABG averages (p = 0.33), but clinical results were significantly better in women as compared with men. Conclusion: In patients with central tympanic membrane perforation, tympanoplasty surgery with temporal fascia is beneficial in terms of hearing recovery.