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06.08.2018 | Multimedia Article | Ausgabe 12/2018

Journal of Gastrointestinal Surgery 12/2018

Pilot Study of Dumbbell-Type Covered Self-Expandable Metal Stent Deployment for Benign Pancreatic Duct Stricture (with Videos)

Zeitschrift:
Journal of Gastrointestinal Surgery > Ausgabe 12/2018
Autoren:
Tadahiro Yamada, Takeshi Ogura, Atsushi Okuda, Miyuki Imanishi, Rieko Kamiyama, Akira Miyano, Nobu Nishioka, Kazuhide Higuchi
Wichtige Hinweise

Electronic supplementary material

The online version of this article (https://​doi.​org/​10.​1007/​s11605-018-3901-z) contains supplementary material, which is available to authorized users.

Abstract

Background

Fully-covered, self-expandable metal stents (FCSEMS) have been deployed to treat symptomatic chronic pancreatitis (CP) complicated with main pancreatic duct (MPD) stricture. Although this strategy can be effective, it has the disadvantages of stent migration or stent-induced ductal change. Removal of an FCSEMS can also be challenging in the face of distal migration because of MPD stricture. Dumbbell-type FCSEMS have been developed to prevent stent-induced ductal changes and improve removability when treating benign biliary stricture. This stent might also confer clinical benefits upon patients with MPD stricture.

Aims

The present pilot study aimed to determine the feasibility and safety of deploying dumbbell-type FCSEMS in patients with CP complicated by MPD stricture.

Method

Stents were deployed in 22 patients with MPD stricture caused by CP and complicated by abdominal pain.

Results

Strictures were located at the head (n = 19), body (n = 2), and head and tail (n = 1) of the MPD. Stents were deployed above the papilla in three patients. All stents were deployed for a median duration of 142 (range, 49–190) days and removed. The resolution of MPD strictures was confirmed by pancreatography in 19 (86.3%) patients. Two metal stents that spontaneously tore during removal from two patients had otherwise functioned normally. Only three patients developed recurrent MPD stricture during a median follow-up of 419 (range, 261–484) days..

Conclusions

Deployment of a dumbbell-type FCSEMS seems feasible for MPD stricture, and the rate of adverse events is acceptable.

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