Akademik Veri Yönetim Sistemi
INTERNATIONAL JOURNAL OF PHARMACEUTICAL RESEARCH AND ALLIED SCIENCES, cilt.5, sa.2, ss.175-178, 2016 (ESCI)
This study was carried out to determine the relationship of sensorineural hearing loss and drilling in mastoid surgery at Ahvaz Jundishapur University of Medical Sciences in Iran. This was a prospective study conducted on889 patients of chronic middle ear disease, which were surgically treated at the department of otolaryngology of Imam and Apadana Hospitals in Ahvaz during March 2008 to 2015. Drilling duration in tympanomastoid surgery was 22.1+/-15.1 minutes. The preoperative and postoperative bone conduction thresholds in frequencies 250 to 4000 HZ were obtained one day before and 6 weeks after the surgical procedure by one expert audiologist. The descriptive statistics (frequency, correlation) and inferential statistics (paired t-Test, Chi-square) were utilized to evaluate hearing loss after surgery. The significant level was considered at 0.05 in this study. A total of 889 patients were included in this study. Among them 613 (68.95%) were female and 276 (31.05%) of them were male. The male to female ratio was 1: 2.4. The patients ranged in age from 3 to 78 years with a mean of 24.15 years. Statistically significant deterioration in bone conduction thresholds was found only with radical mastoidectomy. There was no change in mean bone conduction thresholds in 819 of patients. A total of 70 patients showed worsening of postoperative bone conduction thresholds. Our study has shown that the middle ear surgery in chronic otitis media in majority of the patients does not affect bone conduction thresholds. It is suggested that all ENT surgeon should do chronic otitis media surgery without being worried, but must take all the precaution.