ENDOSCOPIC TRANSCANAL MYRINGOPLASTY: EXPERIENCE IN TU TEACHING HOSPITAL

Abstract

Objective: The objective of the study was to assess the graft uptake and the postoperative hearing results of endoscope assisted myringoplasty performed in the department of ENT and Head & Neck Surgery, Ganesh Man Singh Memorial Academy of ENT and Head & Neck Studies, TUTH.

Methodology: Patients of age 15 years and above who had undergone endoscopic myringoplasty from August 2013 to May 2016 were included. Pure tone audiometry done within 1 week prior to operation was taken. Endoscope assisted myringoplasty was performed. Graft uptake and hearing results were assessed after 6 weeks. Total closure of the perforation was taken as successful uptake and the hearing was assessed using improvement in Air Conduction threshold (AC threshold) and Air Bone gap (AB gap).

Results: Total of seventy-six patients were analysed for graft uptake and hearing improvement. 53.9% were males and 46.1% were females. The graft uptake rate was 88.2% in endoscopic assisted myringoplasty at minimum of 6 weeks follow up. The mean pre and postoperative air conduction threshold was 37.45±8.82dB and 23.34±6.74dB. The mean pre and postoperative air bone gap were 26.95±7.98dB and 11.84±6.24dB. The difference between the pre and postoperative values obtained was highly significant (p<0.001).

Conclusion: The graft uptake rate was 88.2%. The AC threshold and AB gap improvement was highly significant and comparable to other studies in the literatures.

Keywords: Air conduction threshold, Bone conduction threshold, Endoscopic myringoplasty, Pure tone audiogram (PTA)