title: Regrowth of the adenoids after coblation adenoidectomy: cephalometric analysis.
abstract: OBJECTIVE
  To analyze the prevalence of adenoid regrowth at 1 year after coblation adenoidectomy using cephalometric radiography.
  
  
  METHODS
  Retrospective analysis.
  
  
  METHODS
  One hundred eighty-eight children who underwent adenoidectomy from June 2006 through September 2010 were included. Demographic data, preoperative size of palatine tonsils, presence of allergic rhinitis, concurrent operation of recurrent middle ear effusion, and preoperative and postoperative Korean version of Obstructive Sleep Apnea-18 (KOSA-18) scores were analyzed. The size of the adenoids was measured three times in all the children by lateral cephalometry; preoperatively, at 1 month after adenoidectomy to observe adenoid residual; and at 1 year after surgery to observe adenoid regrowth.
  
  
  RESULTS
  The adenoid regrowth at 1 year after adenoidectomy was observed in 25 children (13.3%), and the adenoid residual at 1 month after surgery was observed in 11 children (5.9%) in the cephalometry. Seven of the 11 children with residual disease (63.6%) had adenoid regrowth at 1 year. The regrowth group was significantly younger than no regrowth group, and the preoperative adenoids were larger in regrowth group than in no regrowth group. The symptoms of sleep disordered breathing recurred in two patients and they had revision adenoidectomy.
  
  
  CONCLUSIONS
  The regrowth rate of the adenoids at 1 year was not low. However, most of the patients were asymptomatic. The adenoid residual at 1 month contributed to regrowth at 1 year, and the risk factors of the adenoid regrowth were younger age and larger initial size of the adenoids.
  
  
  METHODS
  2b.
authors.affiliation: Department of Otorhinolaryngology, Seoul, National University College of Medicine, Seoul, South Korea.
authors.forename: So Young
authors.initials: SY
authors.lastname: Kim
authors.forename: Woo-Hyun
authors.initials: WH
authors.lastname: Lee
authors.forename: Chae-Seo
authors.initials: CS
authors.lastname: Rhee
authors.forename: Chul Hee
authors.initials: CH
authors.lastname: Lee
authors.forename: Jeong-Whun
authors.initials: JW
authors.lastname: Kim
mesh_terms: D000233:Adenoidectomy / Q000379:methods; D000234:Adenoids / Q000473:pathology*; D000367:Age Factors; D002508:Cephalometry; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D006984:Hypertrophy; D008297:Male; D014066:Palatine Tonsil / Q000473:pathology; D012189:Retrospective Studies; D012221:Rhinitis, Allergic, Perennial / Q000453:epidemiology
keywords: Adenoids; adenoid regrowth; adenoid residual; adenoidectomy; tonsillectomy; tonsils