title: New fully covered large-bore wide-flare removable metal stent for drainage of pancreatic fluid collections: results of a multicenter study.
abstract: OBJECTIVE
  Endoscopic transmural drainage (ETMD) of peripancreatic fluid collections (PFC) is an effective alternative to surgical drainage. Conventional drainage using plastic stents has its limitations. A wide-bore short-length wide flange fully covered self-expandable metallic stent (FCSEMS) has recently been developed. The present study evaluates the efficacy of this new FCSEMS for ETMD of PFC.
  
  
  METHODS
  This was a retrospective, multicenter study. Patients with PFC undergoing endoscopic ultrasound (EUS)-guided drainage of PFC using specially designed FCSEMS were included. Parameters evaluated were technical success of stent placement, clinical success as defined by resolution of PFC without any further surgical intervention, ability to carry out endoscopic necrosectomy, complications and feasibility of endoscopic stent removal.
  
  
  RESULTS
  Twenty-one PFC in 19 patients were drained using FCSEMS. Technical and clinical success for drainage was seen in all patients (100%). Endoscopic necrosectomy was carried out in seven (33%) PFC. Complications occurred in two patients (10.5%). Stents could be endoscopically removed in all patients (100%).
  
  
  CONCLUSIONS
  The new specially designed FCSEMS is safe and effective for drainage of PFC. Necrosectomy can be carried out through the stent. Stent can be removed endoscopically at the end of the treatment period.
authors.affiliation: Department of Digestive Diseases and Endoscopy, Deenanath Mangeshkar Hospital and Research Center, Pune, India.
authors.forename: Amol
authors.initials: A
authors.lastname: Bapaye
authors.affiliation: Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan.
authors.forename: Takao
authors.initials: T
authors.lastname: Itoi
authors.affiliation: Department of Internal Medicine, Faculty of Medicine, King Chulalongkorn Memorial Hospital, Chulalongkorn University, Bangkok, Thailand.
authors.forename: Pradermchai
authors.initials: P
authors.lastname: Kongkam
authors.affiliation: Department of Digestive Diseases and Endoscopy, Deenanath Mangeshkar Hospital and Research Center, Pune, India.
authors.forename: Nachiket
authors.initials: N
authors.lastname: Dubale
authors.affiliation: Department of Gastroenterology and Hepatology, Tokyo Medical University, Tokyo, Japan.
authors.forename: Shuntaro
authors.initials: S
authors.lastname: Mukai
mesh_terms: D000328:Adult; D000368:Aged; D020878:Device Removal; D004322:Drainage / Q000295:instrumentation*; D016145:Endoscopy, Digestive System / Q000295:instrumentation*; D019160:Endosonography; D004867:Equipment Design; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010189:Pancreatic Juice; D010192:Pancreatic Pseudocyst / Q000175:diagnosis / Q000209:etiology / Q000601:surgery*; D012189:Retrospective Studies; D000069322:Self Expandable Metallic Stents; D016896:Treatment Outcome; D018084:Ultrasonography, Interventional; D055815:Young Adult
keywords: EUS guided transmural drainage; covered metallic stent; pancreatic fluid collection; pseudocyst; walled off necrosis