title: Prognostic factors for successful endoscopic transpapillary drainage of pancreatic pseudocysts.
abstract: OBJECTIVE
  The transpapillary approach can be used for draining pancreatic pseudocysts (PPs) with pancreatic-duct abnormalities. The purpose of this study was to analyze prognostic factors for clinical success of transpapillary drainage.
  
  
  METHODS
  Data for all patients who underwent transpapillary drainage between November 2000 and September 2009 were obtained by retrospective review and entered into a computerized database. Patient data were prospectively followed up to determine long-term outcomes.
  
  
  RESULTS
  Seventy interventional ERCP procedures were performed for 43 patients. Technical success was 90.7 % (39/43). Overall clinical success was 79.5 % (31/39). Clinical success for pancreatic head pseudocyst was significantly different from that for body or tail pseudocyst (62.5 vs. 91.3 %, P = 0.043). Logistic regression analysis showed that location of the PPs predicted the success of endoscopic transpapillary pseudocyst drainage (P = 0.025).
  
  
  CONCLUSIONS
  Transpapillary drainage is the least traumatic approach for drainage of PPs, and is also effective for patients with no communicating pseudocysts. Clinical success for pancreatic body or tail pseudocyst drainage was higher than that for pancreatic head pseudocyst drainage. It was found that the location of PPs predicted the success of transpapillary pseudocyst drainage. None of the other factors tested was a significant predictor of clinical success.
authors.affiliation: Department of Gastroenterology, Shanghai 10th People's Hospital, Tongji University School of Medicine, Shanghai, 200072, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Lin
authors.forename: Xian-Bao
authors.initials: XB
authors.lastname: Zhan
authors.forename: Zhen-Dong
authors.initials: ZD
authors.lastname: Jin
authors.forename: Duo-Wu
authors.initials: DW
authors.lastname: Zou
authors.forename: Zhao-Shen
authors.initials: ZS
authors.lastname: Li
mesh_terms: D000208:Acute Disease; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D016009:Chi-Square Distribution; D002760:Cholangiopancreatography, Endoscopic Retrograde / Q000009:adverse effects / Q000295:instrumentation; D002908:Chronic Disease; D004322:Drainage / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods*; D005260:Female; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D010192:Pancreatic Pseudocyst / Q000175:diagnosis / Q000628:therapy*; D012189:Retrospective Studies; D012307:Risk Factors; D016717:Sphincterotomy, Endoscopic; D015607:Stents; D016896:Treatment Outcome; D055815:Young Adult