Friedman EM, Sprecher RC, Simon S, Dunn JK. Quantitation and prevalence of tympanosclerosis in a pediatric otolaryngology clinic.
Int J Pediatr Otorhinolaryngol 2001;
60:205-11. [PMID:
11551611 DOI:
10.1016/s0165-5876(01)00534-1]
[Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE
To determine the incidence and prevalence of tympanosclerosis (TS) in patients seen in a pediatric otolaryngology clinic.
DESIGN
Prospective observational study.
SETTING
Tertiary care, ambulatory care clinic.
PATIENTS AND OTHER PARTICIPANTS
We conducted a prospective observational study to determine the incidence of TS in 218 patients seen consecutively in a pediatric otolaryngology clinic for otologic and nonotologic reasons. The patient age range was 3 weeks to 30 years; 63% were male and 37% female. Of the 218 patients, 37% (81) had undergone bilateral myringotomy and tube placement (BM&T), and 35% (21) of the 81 showed signs of TS; 63% (137) of the 218 patients had no history of otologic surgery, but 12% (15) of the 137 showed signs of TS.
METHOD
The area of the tympanic membrane affected by TS was determined by otoscopy performed by one viewer, who drew the otoscopic findings on a standardized tympanic membrane template. The area of TS was quantified in terms of percentages by digital image analysis of the scaled drawings.
RESULTS
There was a range of 0.5-59.9% involvement of the tympanic membrane with TS, with the median percentage of involvement being 4.95%. There was an increased percentage of TS with repeat BM&T.
CONCLUSION
This observational study shows that patients who have had BM&T have a higher incidence of TS than those who have not had the surgery. However our findings also show that 38% of the patients in this study who had TS had never undergone BM&T.
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