title: [Endoscopic experience with the Montgomery salivary bypass tube in esophageal stenosis and fistulae].
abstract: OBJECTIVE
  Provide the initial endoscopic experience in the placing of the Montgomery salivary bypass tube (MSBT).
  
  
  METHODS
  Descriptive, retrospective study in 7 patients in the Digestive System Unit of EsSALUD Hospital Edgardo Rebagliati Martins in Lima-Peru from November 2003 to January 2006.
  
  
  RESULTS
  The average age of the patients was 34.68 years (2 years, 8 months - 76 years); 85.1% were male, 71.4% required hospitalization in the Intensive Care Unit. In 5 patients, the MSBT indications were some kind of fistula in the esophagus, and stenosis in 2 patients, one crichopharyngeal and the other gastric transposition with anastomosis in the cervical esophagus. The endoscopic help for the placing of the MSBT was required in 81.8% and for withdrawal in 77.7%. In the six (6) adult patients, sedation, the endoscopic procedure and the placing of the MSBT were well-tolerated. The average time that the MSBT was in place was 70.5 days. In two (2) patients (28.6%), there were complications associated with the MSBT: one had odinophagia which required withdrawal on the seventh day and another patient had anterograde migration of the MSBT with fatal perforation of the small intestine. In 57.1% of the cases, the fistula or stenosis was cured; in 28.6%, there was partial improvement.
  
  
  CONCLUSIONS
  The endoscopic technique for the insertion of the MSBT serves as an alternative, allows the diagnosis, confirmation, comparison of fistulas or stenosis in the cervical esophagus and is well-tolerated.
authors.affiliation: Médico Residente de Gastroenterología Universidad Peruana Cayetano Heredia, Lima, Peru.
authors.forename: Javier
authors.initials: J
authors.lastname: Silva Balarezo
authors.forename: Julio
authors.initials: J
authors.lastname: Delgado Palache
authors.forename: Oscar
authors.initials: O
authors.lastname: Frisancho Velarde
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002675:Child, Preschool; D013505:Digestive System Surgical Procedures / Q000295:instrumentation / Q000379:methods; D004867:Equipment Design; D004937:Esophageal Fistula / Q000601:surgery*; D004940:Esophageal Stenosis / Q000601:surgery*; D004945:Esophagoscopy; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D018987:Salivary Ducts / Q000601:surgery