Journal
INDIAN JOURNAL OF OTOLARYNGOLOGY AND HEAD & NECK SURGERY
Volume 63, Issue 3, Pages 208-213Publisher
SPRINGER INDIA
DOI: 10.1007/s12070-011-0129-6
Keywords
Hearing loss; Perforation; Tympanic membrane
Categories
Ask authors/readers for more resources
To evaluate and analyse the hearing loss in tympanic membrane perforation based on size, site and duration of perforation. The material for this study was comprised of 100 patients of either sex and of age 15 years and above selected randomly. Size of tympanic membrane perforation was assessed under microscope using calibrated wire look. Patients were divided into three groups according to size; group I (0-9 mm(2)), Group II (9-30 mm(2)), Group III (a parts per thousand yen 30 mm(2)); according to site into anterior and posterior group; according to involvement of malleus into malleolar and non malleolar and according to duration into Group A (< 1 year), Group B (1-5 years), Group C (a parts per thousand yen 5 years). Hearing loss was measured in each case with pure tone audiometry. Data was analysed statistically using paired t-test. Hearing loss increased as the perforation size increased [I vs. II (t - 4.23, p < 0.001), II vs. III (t - 8.19, p < 0.001), I vs. III (t - 11.68, p < 0.001)]. Hearing loss was more in posterior quadrant perforation than anterior quadrant perforation but difference was not significant statistically (t - 1.15, p > 0.05). Hearing loss was more in malleolar perforation (t - 5.74, p < 0.001). Hearing loss increased as the duration of disease increased [A vs. B (t - 2.01, p < 0.043), A vs. C (t - 5.49, p < 0.001), B vs. C (t - 4.14, p < 0.001)].
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available