title: Endonasal microendoscopic pansinusoperation in chronic sinusitis. II. Results and complications.
abstract: OBJECTIVE
  We evaluated the long-term results and complications of endonasal pansinusoperation in chronic polypoid sinusitis.
  
  
  METHODS
  In a retrospective study, 170 patients were followed-up for 20 months to 10 years after bilateral endonasal microendoscopic pansinus surgery or ethmoidectomy. The follow-up consisted of a standardized questionnaire and clinical examination with the flexible endoscope.
  
  
  RESULTS
  We found that 85.6% of the ethmoid cell systems, 69.4% of maxillary sinuses, and 37.5% of frontal sinuses could be visualized endoscopically. The ethmoid mucosa was normal in 56% and thickened in 19%. Recurrent polyps were found in 25%. The evaluation--as per the graduation of results defined by us as a combination of examination findings and subjective assessment of the operative result--resulted in an operative success of 92%. Two studies dealing with the frequency of complications showed injury to the dura in 2.3% to 2.55% and periorbital injury without permanent sequelae in 1.4% to 3.4%. Because of two cases of bleeding from the internal carotid artery, the problems of vascular complications in particular will be thoroughly discussed.
  
  
  CONCLUSIONS
  More than 90% of patients with chronic polypoid sinusitis gain long-term satisfying results after endonasal ethmoidectomy with microscope and endoscope. For minimizing the risk of injury of the optic nerve or the internal carotid artery preoperative, computed tomography is necessary. A special training program is recommended.
authors.affiliation: Department of ENT Diseases, Head, Neck and Facial Plastic Surgery, Communication Disorders, Hospital Fulda, Academic Teaching Hospital of the University of Marburg, Germany.
authors.forename: R
authors.initials: R
authors.lastname: Weber
authors.forename: W
authors.initials: W
authors.lastname: Draf
authors.forename: R
authors.initials: R
authors.lastname: Keerl
authors.forename: B
authors.initials: B
authors.lastname: Schick
authors.forename: A
authors.initials: A
authors.lastname: Saha
mesh_terms: D002908:Chronic Disease; D004724:Endoscopy / Q000379:methods*; D005005:Ethmoid Sinus / Q000601:surgery; D005500:Follow-Up Studies; D006801:Humans; D009297:Nasal Mucosa / Q000601:surgery; D009298:Nasal Polyps / Q000150:complications / Q000601:surgery; D011183:Postoperative Complications / Q000453:epidemiology; D012189:Retrospective Studies; D012852:Sinusitis / Q000209:etiology / Q000601:surgery*; D013997:Time Factors; D016896:Treatment Outcome