title: Endoscopic Ultrasound-guided Drainage of Pancreatic Pseudocysts: Medium-Term Assessment of Outcomes and Complications.
abstract: OBJECTIVE
  Endoscopic ultrasound (EUS)-guided drainage is a widely used treatment modality for pancreatic pseudocysts (PPC). However, data on the clinical outcome and complication rates are conflicting. Our study aims to evaluate the rates of technical success, treatment success and complications of EUS-guided PPC drainage in a medium-term follow-up of 45 weeks.
  
  
  METHODS
  A retrospective review was conducted for 55 patients with symptomatic PPC from December 2005 to August 2010 drained by EUS. Medium-term follow-up data were obtained by searching their medical history or by telephonic interview.
  
  
  RESULTS
  A total of 61 procedures were performed. The symptoms that indicated drainage were abdominal pain (n = 43), vomiting (n = 7) and jaundice (n = 5). The procedure was technically successful in 57 of the 61 procedures (93%). The immediate complication rate was 5%. At a mean follow-up of 45 weeks, the treatment success was 75%. The medium term complications appeared in 25% of cases, which included three cases each of stent clogging, stent migration, infection and six cases of recurrence. There was no mortality.
  
  
  CONCLUSIONS
  EUS-guided drainage is an effective treatment for PPC with a successful outcome in most of patients. Most of the complications require minimal invasive surgical treatment or repeated EUS-guided drainage procedures.
authors.affiliation: Gastroenterology and Hepatology Unit, Medical Department, Queen Elizabeth Hospital, Hong Kong, China.
authors.forename: Pui Yung
authors.initials: PY
authors.lastname: Ng
authors.affiliation: Department of Surgical Gastroenterology, Copenhagen University Hospital Herlev, Endoscopic Unit Z-806 at Gentofte Hospital, Niels, Andersens Vej 65, DK-2900 Hellerup, Denmark.
authors.forename: Ditlev Nytoft
authors.initials: DN
authors.lastname: Rasmussen
authors.affiliation: Department of Surgery, Copenhagen University Hospital Herlev, Herlev Ringvej 75, 2730 Herlev, Denmark.
authors.forename: Peter
authors.initials: P
authors.lastname: Vilmann
authors.affiliation: Department of Surgery, Copenhagen University Hospital Herlev, Herlev Ringvej 75, 2730 Herlev, Denmark.
authors.forename: Hassem
authors.initials: H
authors.lastname: Hassan
authors.affiliation: Research Center of Gastroenterology and Hepatology Craiova, University of Medicine and Pharmacy of Craiova, Romania.
authors.forename: Victor
authors.initials: V
authors.lastname: Gheorman
authors.affiliation: Research Center of Gastroenterology and Hepatology Craiova, University of Medicine and Pharmacy of Craiova, Romania.
authors.forename: Daniela
authors.initials: D
authors.lastname: Burtea
authors.affiliation: Research Center of Gastroenterology and Hepatology Craiova, University of Medicine and Pharmacy of Craiova, Romania.
authors.forename: Valeriu
authors.initials: V
authors.lastname: Surlin
authors.affiliation: Research Center of Gastroenterology and Hepatology Craiova, University of Medicine and Pharmacy of Craiova, Romania.
authors.forename: Adrian
authors.initials: A
authors.lastname: Săftoiu
keywords: endoscopic ultrasound; pancreatic cyst; pancreatic pseudocyst drinage