title: Efficacy, Safety, and Long-Term Follow-Up Results of EUS-Guided Transmural Drainage for Pancreatic Pseudocyst.
abstract: Background and Aim. EUS-guided transmural drainage (EUS-GTD) is now considered a minimally invasive and effective alternative to surgery for drainage of symptomatic pancreatic pseudocysts. However, the technique is rather difficult, and sometimes serious complications occur to patients undergoing this procedure. We retrospectively evaluated efficacy, safety, and long-term follow-up results of EUS-GTD for pancreatic pseudocyst. Methods. Sixty-seven patients with pancreatic pseudocyst who underwent EUS-GTD from April 2000 to March 2011 were enrolled. We retrospectively evaluated (1) technical success, (2) clinical success, (3) adverse event of procedure, and (4) long-term follow-up results. Results. Total technical success rate was 88%. Ninety-one percent of external drainage, 79% of internal drainage, and 66% of puncture and aspiration only achieved clinical success. There was only one case with an adverse event, perforation (1.5%). The case required emergency operation. Total recurrence rate was 23.9%. Median follow-up period was 33.9 months. The recurrence rates in the cases of stent remaining, spontaneously dislodged, removed on schedule, external tube removal, and aspiration only were 10.0%, 12.5%, 42.9%, 50%, and 0%, respectively. Conclusion. EUS-GTD is a relatively safe and effective therapeutic method. However, further analysis should be done by larger series to determine the method of EUS-GTD for pancreatic pseudocyst.
authors.affiliation: Center for Gastroenterology, Teine-Keijinkai Hospital, Sapporo 006-8555, Japan.
authors.forename: Shin
authors.initials: S
authors.lastname: Kato
authors.forename: Akio
authors.initials: A
authors.lastname: Katanuma
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Maguchi
authors.forename: Kuniyuki
authors.initials: K
authors.lastname: Takahashi
authors.forename: Manabu
authors.initials: M
authors.lastname: Osanai
authors.forename: Kei
authors.initials: K
authors.lastname: Yane
authors.forename: Toshifumi
authors.initials: T
authors.lastname: Kim
authors.forename: Maki
authors.initials: M
authors.lastname: Kaneko
authors.forename: Ryo
authors.initials: R
authors.lastname: Takaki
authors.forename: Kazuyuki
authors.initials: K
authors.lastname: Matsumoto
authors.forename: Tomoaki
authors.initials: T
authors.lastname: Matsumori
authors.forename: Katsushige
authors.initials: K
authors.lastname: Gon
authors.forename: Akiko
authors.initials: A
authors.lastname: Tomonari
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