title: Endoscopic treatment of Zenker's diverticulum with an oblique-end hood attached to the endoscope.
abstract: BACKGROUND
  The feasibility and efficacy of incision of the septum between the pharyngoesophageal (Zenker's) diverticulum and the esophagus with a flexible endoscope and needle-knife have been demonstrated. Exposure of the septum remains a critical element of the procedure. This is a report of a technical improvement in this technique: use of a transparent oblique-end hood attached to the tip of the endoscope.
  
  
  METHODS
  Ten patients (10 men, age range 67-87 years) with Zenker's diverticulum were treated. With the aid of an oblique-end hood attached to the tip of the endoscope, the septum between the Zenker's diverticulum and esophagus was incised with pure coagulation current. A 10F nasogastric tube was left in place for 48 hours after the procedure to provide nutrition. Thereafter, oral intake was progressively resumed.
  
  
  RESULTS
  Complete incision of the septum was achieved in a single session in all cases. Bleeding or perforation did not occur in this small series. Complete relief of dysphagia was reported by all patients during follow-up that ranged from 2 to 12 months.
  
  
  CONCLUSIONS
  With the use of the oblique-end hood attached to the tip of the endoscope, incision of Zenker's diverticulum is simplified and can be performed as a single-session procedure.
authors.affiliation: Endoscopic Unit of Hospital das Clínicas of São Paulo University Medical School, São Paulo, Brazil.
authors.forename: P
authors.initials: P
authors.lastname: Sakai
authors.forename: S
authors.initials: S
authors.lastname: Ishioka
authors.forename: F
authors.initials: F
authors.lastname: Maluf-Filho
authors.forename: D
authors.initials: D
authors.lastname: Chaves
authors.forename: E G
authors.initials: EG
authors.lastname: Moura
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D004867:Equipment Design; D004869:Equipment Safety; D020701:Esophagoscopes; D004945:Esophagoscopy / Q000379:methods*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D012680:Sensitivity and Specificity; D016896:Treatment Outcome; D016672:Zenker Diverticulum / Q000175:diagnosis / Q000601:surgery*