title: Esophageal stent with antireflux valve for tumors involving the cardia: work in progress.
abstract: OBJECTIVE
  To describe an esophageal stent with a polyester mesh cover and an antireflux valve, and to assess its efficacy in the treatment of patients with inoperable tumors of the gastric cardia.
  
  
  METHODS
  Thirteen patients with adenocarcinoma of the cardia, two patients with squamous cell carcinoma, and three patients with recurrent carcinoma of the gastric fundus after surgery were treated by placement of an esophageal stent with an antireflux valve. The spiral Z stent has a porous, polyester mesh cover and an antireflux sleeve made of pliable polyurethane at its lower end.
  
  
  RESULTS
  Placement of the stent was successful in all patients, and their dysphagia disappeared or significantly improved. All were able to swallow solid food, and no patient reported significant reflux or "gas bloat" syndrome prior to death or the end of follow-up. Two patients only complained of minor heartburn. Follow-up barium swallow studies showed the absence of significant gastroesophageal reflux in all patients. No stent migration occurred.
  
  
  CONCLUSIONS
  The esophageal stent with antireflux valve has been effective in the treatment of malignant obstruction of the cardia and allowed good esophageal passage without migration and major gastroesophageal reflux.
authors.affiliation: Radiologicka Klinika FN, Olomouc, Czech Republic.
authors.forename: M
authors.initials: M
authors.lastname: Köcher
authors.forename: M
authors.initials: M
authors.lastname: Dlouhy
authors.forename: C
authors.initials: C
authors.lastname: Neoral
authors.forename: E
authors.initials: E
authors.lastname: Buriankova
authors.forename: A
authors.initials: A
authors.lastname: Gryga
authors.forename: M
authors.initials: M
authors.lastname: Duda
authors.forename: R
authors.initials: R
authors.lastname: Aujesky
mesh_terms: D000230:Adenocarcinoma / Q000628:therapy; D000284:Administration, Oral; D000368:Aged; D000369:Aged, 80 and over; D001466:Barium Sulfate / Q000008:administration & dosage; D002277:Carcinoma / Q000628:therapy; D002294:Carcinoma, Squamous Cell / Q000628:therapy; D002299:Cardia; D003287:Contrast Media / Q000008:administration & dosage; D003679:Deglutition / Q000502:physiology; D003680:Deglutition Disorders / Q000628:therapy; D004867:Equipment Design; D005260:Female; D005500:Follow-Up Studies; D005748:Gastric Fundus; D005764:Gastroesophageal Reflux / Q000000981:diagnostic imaging / Q000517:prevention & control*; D006356:Heartburn / Q000209:etiology; D006801:Humans; D008297:Male; D008875:Middle Aged; D009364:Neoplasm Recurrence, Local / Q000628:therapy; D018583:Pliability; D011091:Polyesters; D011140:Polyurethanes; D016062:Porosity; D011859:Radiography; D015607:Stents; D013274:Stomach Neoplasms / Q000628:therapy*; D013526:Surgical Mesh
chemical_list: D003287:Contrast Media; D011091:Polyesters; D011140:Polyurethanes; D001466:Barium Sulfate