Audiological Outcome of Classical Adenoidectomy versus Endoscopically-Assisted Adenoidectomy using a Microdebrider.

INTRODUCTION: The aim of this study was to evaluate audiological outcomes following adenoidectomy by the classical method and by endoscopically-assisted adenoidectomy using a powered instrument (microdebrider). MATERIALS AND METHODS: This study was conducted in a tertiary care center. It included 40 patients divided into two equal groups of 20 each. Group-A patients underwent classical adenoidectomy, while Group-B patients were subjected to endoscopically-assisted adenoidectomy using a microdebrider. Hearing outcome was measured by post-operative pure-tone audiometry and tympanometry. RESULTS: The post-operative average air-bone gap (ABG) was reduced from 19.6 dB to 11.8 dB in Group A and from 17.6 dB to 8.7 dB in Group B (P=0.010). There was reversal of tympanometric curves from type-B and type-C to type-A in 55% of the patients in Group A, while type-A curve was seen in 90% cases in Group B in the post-operative period. CONCLUSION: Audiological outcomes of endoscopically-assisted adenoidectomy using a microdebrider were superior compared with classical adenoidectomy.

Changing Trends in Adenoidectomy.

Adenoid hypertrophy treatment is must to alleviate chronic nasal obstruction, mouth breathing, rhinosinusitis and eustachian tube dysfunction. For proper management of this clinical entity a thorough clinical examination along with radiological and endoscopic evaluation is mandatory. Although, few children having adenoid hypertrophy respond to medical treatment, surgery remains the mainstay. An adenoidectomy can be performed by variety of techniques. Conventional adenoidectomy is by the curettage method, still practiced in many institutions, though, a recent technique of endoscopic assisted adenoidectomy by microdebrider is also getting popularized. Both the techniques have their own merits and demerits. However, which of the two surgical techniques is better, is still a matter of preference and experience of the surgeon with the technique. In the present study we will compare the conventional curettage adenoidectomy with endoscopically assisted adenoidectomy done with microdebrider in 40 pediatric patients of adenoid hypertrophy.