title: [Usefulness of self-expanding biodegradable prosthesis in the treatment of refractory benign stenosis: a case series study].
abstract: BACKGROUND
  The use of self-expanding biodegradable prosthesis treatment of refractory benign stenosis is still undefined.
  
  
  OBJECTIVE
  To determine the utility and safety of biodegradable polydioxanone prostheses as treatment of gastrointestinal tract refractory benign strictures.
  
  
  METHODS
  Consecutive patients diagnosed with refractory benign stricture of gastrointestinal tract following Kochman's criteria were included. The type of stenosis were anastomotic (n = 5), peptic (n = 1), post-radiotherapy (n = 1) and they were located in proximal esophagus-hypofarynge (n = 2), esophagus medium (n = 1), distal esophagus (n = 2) and rectum (n = 2). The prosthesis was placed under endoscopic and fluoroscopic control under conscious sedation with propofol.
  
  
  RESULTS
  Seven patients (8 prosthesis) were included. Mean patient age was 49 years-old (range: 37-70). Insertion prosthesis was successful in all cases. Distal migration of prosthesis was observed in both rectal stenosis and was the indication of a second prosthesis placement in one case. At the end of follow-up (median follow-up 30 weeks for esophageal stricture, 33 weeks for rectal stricture) 5 patients remained asymptomatic. Eighty per cent of patients with esophageal stenosis showed partial and transient re-stenosis due to hyperplastic reaction during the degradation of the prosthesis, with transient dysphagia in two patients resolved medically. Complete prosthesis degradation was confirmed by endoscopy in all cases.
  
  
  CONCLUSIONS
  The use of self-expanding biodegradable polydioxanone prosthesis is a safe and utile therapeutic option for refractory benign gastrointestinal stenosis.
authors: Servicio de Aparato Digestivo, Hospital General Universitario de Ciudad Real, España. bnngranada@gmail.com
authors: B
authors: B
authors: López-Viedma
authors: R
authors: R
authors: Lorente-Poyatos
authors: F
authors: F
authors: Domper-Bardají
authors: E
authors: E
authors: De la Santa-Belda
authors: A
authors: A
authors: Hernández-Albújar
authors: R
authors: R
authors: Patón-Arenas
authors: C
authors: C
authors: Verdejo-Gil
authors: A
authors: A
authors: Bohumidi
authors: P
authors: P
authors: Olivencia-Palomares
authors: M D
authors: MD
authors: Galván-Fernández
authors: J
authors: J
authors: Rodríguez-Sánchez
authors: M
authors: M
authors: LaBlanca-Alonso
authors: J
authors: J
authors: Olmedo-Camacho
authors: E
authors: E
authors: Rodríguez-Sánchez
mesh_terms: D020341:Absorbable Implants; D000328:Adult; D000368:Aged; D016292:Procedural Sedation; D004940:Esophageal Stenosis / Q000628:therapy*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D016687:Polydioxanone; D019736:Prostheses and Implants; D019919:Prosthesis Implantation / Q000379:methods*; D012002:Rectal Diseases / Q000628:therapy
chemical_list: D016687:Polydioxanone