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HPB Surgery
Volume 11 (2000), Issue 5, Pages 333-338

Pancreatic Pseudocysts Transpapillary and Transmural Drainage

1Endoscopy Unit, Division of Gastroenterology, Universidade Federal de São Paulo, São Paulo, Brazil
2Rua Pedro de Toledo, 980, cj 66, São Paulo-SP CEP 04039-002, Brazil

Received 1 September 1998

Copyright © 2000 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Background: Pancreatic pseudocyst endoscopic drainage has been described as a good treatment option, with morbidity and mortality rates that are lower than surgery. The aim of our study is to describe the efficacy of different forms of endoscopic drainage and estimate pseudocyst recurrence rate after short follow up period.

Patients and Methods: We studied 30 patients with pancreatic pseudocyst that presented some indication for treatment: persistent abdominal pain, infection or cholestasis. Clinical evaluation was performed with a pain scale, 0 meaning absence of pain and 4 meaning continuous pain. Pseudocysts were first evaluated by abdominal CT scan, and after endoscopic retrograde pancreatography the patients were treated by transpapillary or transmural (cystduodenostomy or cystgastrostomy) drainage. Pseudocyst resolution was documented by serial CT scans.

Results: 25/30 patients could be treated. Drainage was successful in 21 (70% in an ‘intention to treat’ basis). After a mean follow-up of 42±35.82 weeks, there was only 1 (4.2%) recurrence. A total of 6 complications occurred in 37 procedures (16.2%), and all but 2 were managed clinically and/or endoscopically: there was no mortality related to the procedure. Patients submitted to combined drainage needed more procedures than the other groups. There was no difference in the efficacy when we compared the three different drainage methods.

Conclusions: We concluded that pancreatic pseudocyst endoscopic drainage is possible in most patients, with high success rate and low morbidity.