title: Hyperostosis may affect prognosis after primary endoscopic sinus surgery for chronic rhinosinusitis.
abstract: OBJECTIVE
  To investigate the independent effect of hyperostosis on outcome after endoscopic sinus surgery (ESS) in patients with chronic rhinosinusitis (CRS).
  
  
  METHODS
  The medical records of 81 consecutive patients who had undergone primary ESS for CRS were reviewed retrospectively. Sinus CT scans were evaluated for the presence of hyperostosis to investigate the association with postoperative outcomes. The independent effect of hyperostosis on surgical outcome was analyzed, controlling for possible confounding factors with a multiple logistic regression model.
  
  
  RESULTS
  Sixty percent of the patients showed hyperostosis, and there was a statistically significant association between the hyperostosis and postoperative outcome (P = 0.035, chi(2) test), which was confirmed after adjustment for the possible confounding factors (P = 0.048, odds ratio [OR] = 3.19, logistic regression analysis).
  
  
  CONCLUSIONS
  Our study suggests that patients with CRS who have hyperostosis may have a poorer surgical outcome than those without hyperostosis.
  
  
  METHODS
  B-2b.
authors.affiliation: Department of Otorhinolaryngology-Head and Neck Surgery, Sungkyunkwan University School of Medicine, Samsung Medical Center, Ilwon-dong 50, Kangnam-gu, Seoul 135-710, Korea.
authors.forename: Hyo Yeol
authors.initials: HY
authors.lastname: Kim
authors.forename: Hun-Jong
authors.initials: HJ
authors.lastname: Dhong
authors.forename: Hyun Jong
authors.initials: HJ
authors.lastname: Lee
authors.forename: Young-Jun
authors.initials: YJ
authors.lastname: Chung
authors.forename: Yoo Jeong
authors.initials: YJ
authors.lastname: Yim
authors.forename: Jae-Won
authors.initials: JW
authors.lastname: Oh
authors.forename: Seung-Kyu
authors.initials: SK
authors.lastname: Chung
authors.forename: Hyung Jin
authors.initials: HJ
authors.lastname: Kim
mesh_terms: D000328:Adult; D002908:Chronic Disease; D004724:Endoscopy / Q000009:adverse effects*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015576:Hyperostosis / Q000000981:diagnostic imaging / Q000209:etiology*; D008297:Male; D013517:Otorhinolaryngologic Surgical Procedures / Q000009:adverse effects* / Q000379:methods; D010256:Paranasal Sinuses / Q000000981:diagnostic imaging / Q000601:surgery*; D011183:Postoperative Complications; D011379:Prognosis; D012189:Retrospective Studies; D012220:Rhinitis / Q000000981:diagnostic imaging / Q000601:surgery*; D012852:Sinusitis / Q000000981:diagnostic imaging / Q000601:surgery*; D014057:Tomography, X-Ray Computed