The Efficacy of Endoscopic Exploratory Tympanotomy in Conductive Hearing Loss Patients.
10.3342/kjorl-hns.2016.16936
- Author:
Hong Chan KIM
1
;
Wan Seok CHO
;
Jong Yuap SEONG
;
Eun Sun JEON
;
Sung Su LEE
;
Hyong Ho CHO
Author Information
1. Department of Otolaryngology-Head and Neck Surgery, Chonnam National University Medical School and Chonnam National University Hospital, Gwangju, Korea. victocho@hanmail.net
- Publication Type:Original Article
- Keywords:
Conductive;
Endoscopy;
Hearing loss;
Ossicular replacement
- From:Korean Journal of Otolaryngology - Head and Neck Surgery
2017;60(1):7-12
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND AND OBJECTIVES: The aim of this study is to investigate the effectiveness of the endoscopic exclusive transcanalar approach for the management of conductive hearing loss. SUBJECTS AND METHOD: This was a retrospective comparative study of 106 patients who underwent exploratory tympanotomy at Chonnam National University Hospital from January 2008 to March 2016. The subjects were classified into two groups; endoscopic tympanotomy (ET, n=26) and microscopic tympanotomy (MT, n=80). Demographic data, operation time, postoperative admission days, pure tone audiometric results of pre-operation and post-operation at 3 months, and hearing success rate were evaluated. RESULTS: The mean operation time of MT (101.7±24.8 minutes) was longer than that of ET (59.8±23.2 minutes) with a statistical significance (p<0.01). The mean postoperative admission days of MT (4.4±1.3) was longer than that of ET (2.0±0.6) with a statistical significance (p<0.01). Hearing gain (air-conduction) and air-bone gap improvements were not significantly different between the groups. However, the hearing success rate of ET [partial ossicular replacement prosthesis (PORP) 85.7%, total ossicular replacement prosthesis (TORP) 81.8%] was significantly improved enormously compared to that of MT (PORP 62.9%, TORP 64.3%). CONCLUSION: With regards to conductive hearing loss, the endoscopic approach provided a better surgical view and less invasiveness compared with the microscopic approach. In conclusion, endoscopic exploratory tympanotomy had several advantages in operation time, admission days and hearing success rate.
