Kanno Y, Ito K, Koshita S, Ogawa T, Masu K, Masaki Y, Noda Y. Efficacy of a newly developed dilator for endoscopic ultrasound-guided biliary drainage. World J Gastrointest Endosc 2017; 9(7): 304-309 [PMID: 28744342 DOI: 10.4253/wjge.v9.i7.304]
Corresponding Author of This Article
Dr. Yoshihide Kanno, Department of Gastroenterology, Sendai City Medical Center, 5-22-1 Tsurugaya, Miyagino-ku, Sendai, Miyagi 983-0824, Japan. yoshi-hk@openhp.or.jp
Research Domain of This Article
Gastroenterology & Hepatology
Article-Type of This Article
Retrospective Cohort Study
Open-Access Policy of This Article
This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Yoshihide Kanno, Kei Ito, Shinsuke Koshita, Takahisa Ogawa, Kaori Masu, Yoshiharu Masaki, Yutaka Noda, Department of Gastroenterology, Sendai City Medical Center, Sendai, Miyagi 983-0824, Japan
Author contributions: Kanno Y desiged research and wrote the manuscript; Kanno Y, Ito K, Masu K and Masaki Y performed the research; Kanno Y, Koshita S, Ogawa T and Noda Y analyzed the data.
Institutional review board statement: Institutional review board approved this study.
Informed consent statement: All study participants or their legal guardian provided informed written consent about personal and medical data collection prior to study enrolment.
Conflict-of-interest statement: The authors have no conflicts of interest or financial ties to disclose.
Data sharing statement: The original anonymous dataset is available on request from the corresponding author at yoshi-hk@openhp.or.jp.
Open-Access: This article is an open-access article which was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/
Correspondence to: Dr. Yoshihide Kanno, Department of Gastroenterology, Sendai City Medical Center, 5-22-1 Tsurugaya, Miyagino-ku, Sendai, Miyagi 983-0824, Japan. yoshi-hk@openhp.or.jp
Telephone: +81-22-2521111 Fax: +81-22-2529431
Received: November 9, 2016 Peer-review started: November 9, 2016 First decision: December 27, 2016 Revised: March 6, 2017 Accepted: March 23, 2017 Article in press: March 24, 2017 Published online: July 16, 2017
Abstract
AIM
To evaluate the efficacy of a newly developed dilator for endoscopic ultrasound (EUS)-guided drainage (ES Dilator).
METHODS
Fourteen consecutive patients who had undergone EUS-guided choledochoduodenostomy (EUS-CDS) with the ES Dilator were identified from a prospectively maintained database and enrolled in the study group. Fourteen other patients who had undergone EUS-CDS without the dilator just prior to its introduction were analyzed as the control group. A historical cohort study was carried out comparing the two groups. The main outcome measurement was the procedure time. The technical success rate and early AE rate were also compared between the two groups.
RESULTS
There were no significant differences in age, sex and etiology of biliary obstruction. The utilization rate of a plastic stent was higher in the control group (36% vs 0%). The technical success rate was 100% in both groups. The mean procedure time was significantly shorter in the study group than in the control group (27 ± 7 min vs 44 ± 26 min, P = 0.026). Additionally, there were no patients who required more than 40 min for the procedure in the study group. Early adverse events occurred in 29% (4/14) of the control group whereas none in the study group. The adverse events in all 4 patients was bile peritonitis, including pan-peritonitis in one patient. All patients recovered with conservative treatment by medication.
CONCLUSION
The newly developed dilator was found to be useful for shortening procedure time and would prevent adverse events related to bile leakage in EUS-CDS.
Core tip: The newly developed dilator (ES Dilator®) was useful for shortening procedure time and would prevent adverse events related to bile leakage in endoscopic ultrasound-guided choledochoduodenostomy.
