title: EUS-guided drainage is more successful in pancreatic pseudocysts compared with abscesses.
abstract: OBJECTIVE
  To compare the results for endoscopic ultrasound (EUS)-guided drainage of clear fluid pancreatic pseudocysts with the results for abscess drainage.
  
  
  METHODS
  All patients referred for endoscopic drainage of a fluid collection were prospectively included. The outcome was recorded.
  
  
  RESULTS
  Altogether 26 pseudocysts or abscesses were treated in 25 (6 female) patients. One endoscopist performed the procedures. Non-infected pseudocysts were present in 15 patients and 10 patients had infected fluid collections. The cyst size ranged between 28 cm × 13 cm and 5 cm × 5 cm. The EUS drainage was successful in 94% of the pseudocysts and in 80% of the abscesses (P = 0.04). The complication rate in pseudocysts was 6% and in abscesses was 30% (P = 0.02). Recurrence of a pseudocyst occurred in one patient (4%) after 6 mo; the patient was successfully retreated.
  
  
  CONCLUSIONS
  EUS-guided drainage of pseudocysts is associated with a higher success rate and a lower complication rate compared with abscess drainage.
authors.affiliation: Institute of Medicine, Department of Internal Medicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden. riadh.sadik@vgregion.se
authors.forename: Riadh
authors.initials: R
authors.lastname: Sadik
authors.forename: Evangelos
authors.initials: E
authors.lastname: Kalaitzakis
authors.forename: Anders
authors.initials: A
authors.lastname: Thune
authors.forename: Jan
authors.initials: J
authors.lastname: Hansen
authors.forename: Claes
authors.initials: C
authors.lastname: Jönson
mesh_terms: D000038:Abscess / Q000000981:diagnostic imaging* / Q000601:surgery*; D000328:Adult; D000368:Aged; D002648:Child; D004322:Drainage / Q000379:methods*; D019160:Endosonography / Q000379:methods*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010192:Pancreatic Pseudocyst / Q000000981:diagnostic imaging* / Q000601:surgery*; D011446:Prospective Studies; D016896:Treatment Outcome; D055815:Young Adult