Retrospective Cohort Study
Copyright ©The Author(s) 2025. Published by Baishideng Publishing Group Inc. All rights reserved.
World J Gastrointest Endosc. Jan 16, 2025; 17(1): 97840
Published online Jan 16, 2025. doi: 10.4253/wjge.v17.i1.97840
Outcomes of bile duct cannulation using a novel contrast-enhanced catheter: A single-center, retrospective cohort study
Toru Kaneko, Mitsuhiro Kida, Takahiro Kurosu, Gen Kitahara, Shiori Koyama, Nao Nomura, Kumiko Tahara, Chika Kusano
Toru Kaneko, Mitsuhiro Kida, Takahiro Kurosu, Gen Kitahara, Shiori Koyama, Nao Nomura, Kumiko Tahara, Department of Gastroenterology, Kitasato University Medical Center, Kitamoto 364-8501, Saitama, Japan
Chika Kusano, Department of Gastroenterology, Kitasato University Hospital, Sagamihara 252-0375, Kanagawa, Japan
Author contributions: Kaneko T conceptualized the study, carried out data collation, conducted formal analysis and surveys, was responsible for methodology, project management, validation and visualization, and participated in writing the original manuscript; Kurosu T, Kitahara G, Koyama S, Nomura N, and Tahara K were responsible for the resources; Kida M and Kusano C supervised the study; Kaneko T, Kida M, Kurosu T, Kitahara G, Koyama S, and Kusano C were involved in writing review and editing; and all authors have read and approved the final manuscript.
Institutional review board statement: This study was approved by the Medical Ethics Committee of Kitasato University Medical Center in Japan, approval No. 2023011.
Informed consent statement: All participants provided written informed consent before the procedure.
Conflict-of-interest statement: All the authors report no relevant conflicts of interest for this article.
STROBE statement: The authors have read the STROBE Statement-checklist of items, and the manuscript was prepared and revised according to the STROBE Statement-checklist of items.
Data sharing statement: The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.
Open Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (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: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Toru Kaneko, MD, PhD, Department of Gastroenterology, Kitasato University Medical Center, 6-100 Arai, Kitamoto 364-8501, Saitama, Japan. toru5646@gmail.com
Received: June 14, 2024
Revised: December 19, 2024
Accepted: January 2, 2025
Published online: January 16, 2025
Processing time: 215 Days and 17.8 Hours
Abstract
BACKGROUND

Endoscopic retrograde cholangiopancreatography is a challenging procedure involving bile duct cannulation. Despite the development of several cannulation devices, none have effectively facilitated the procedure.

AIM

To evaluate the efficacy of a recently developed catheter for bile duct cannulation.

METHODS

We retrospectively examined 342 patients who underwent initial cholangiopancreatography. We compared the success rate of bile duct cannulation and the incidence of complications between the groups using existing and novel catheters.

RESULTS

The overall success rates of bile duct cannulation were 98.3% and 99.1% in the existing and novel catheter groups, respectively (P = 0.47). The bile duct cannulation rate using the standard technique was 73.0% and 82.1% in the existing and novel catheter groups, respectively (P = 0.042). Furthermore, when catheterization was performed by expert physicians, the bile duct cannulation rate was significantly higher in the novel catheter group (81.3%) than in the existing catheter group (65.2%) (P = 0.017). The incidence of difficult cannulation was also significantly lower in the novel catheter group (17.4%) than in the existing catheter group (33.0%) (P = 0.019).

CONCLUSION

The novel catheter improved the bile duct cannulation rate using the standard technique and reduced the frequency of difficult cannulation cases, valuable tool in endoscopic retrograde cholangiopancreatography procedures performed by experts.

Keywords: Endoscopic retrograde cholangiopancreatography; Bile duct; Cannulation; Catheter; Retrospective study

Core Tip: The use of a novel contrast-enhanced catheter improved the bile duct cannulation rate when using the standard technique and reduced the frequency of cases with difficult cannulation. These advantages were particularly notable in procedures performed by experts. Further, its application by experts has shown promise in reducing the frequency of difficult cannulation, underscoring its utility in clinical practice.