10.22376/ijpbs.2019.10.1.p1-12 Volume 7 Issue 4 2016 (October - December) Adenoid hypertrophy in adults is a common entity nowadays because of chronic infection and allergy. Although, adenoidectomy is conventionally done by curettage method, a new technique of endoscopic adenoidectomy with microdebrider is gaining popularity. This study was conducted in ENT department of Sree Balaji Medical College and hospital, Chennai, India. A prospective randomized study was done. 48 patients more than 16 years of age requiring adenoidectomy for various causes with/ without tonsillectomy were included in the study and divided into 2 groups. Group A underwent adenoidectomy with curette and group B underwent endoscopic adenoidectomy with microdebrider. Parameters assessed were Operative time, intraoperative bleeding, damage to surrounding structures, residual adenoids at the end of the procedure and after 3 months. The study shows that after surgery, in group A, 11 patients (45.8%) had residual adenoids as compared to none in group B. The difference was found to be significant (p=0.0002). After 3 months, in group A, 14 patients (58.3%) had residual /recurrent adenoids whereas in group B, 2 patients (8.3%) had recurrent adenoids. The difference was found to be significant (p=0.0002). The injuries to surrounding structures were more in group A. The mean operative time and bleeding were more in group B (p lessThan 0.05). It is concluded that endoscopic adenoidectomy with microdebrider results in complete and accurate removal of adenoid tissue and is an effective alternative to curettage especially in adults. Dr. SHANTI BADRA AND Dr. SUMITHA Endoscopic adenoidectomy, microdebrider, adenoidectomy in adults, adenoid hypertrophy, St. Clair Tho 384-388