CC BY-NC-ND 4.0 · Endosc Int Open 2024; 12(04): E561-E567
DOI: 10.1055/a-2284-9622
Original article

Impact of a new dedicated sheath device for tissue sampling of biliary stricture on pathological diagnostic yield: Retrospective study

1   Division of Endoscopy, Shizuoka Cancer Center, Nagaizumi, Japan
,
Hirotoshi Ishiwatari
1   Division of Endoscopy, Shizuoka Cancer Center, Nagaizumi, Japan
,
Keiko Sasaki
2   Pathology, Shizuoka Cancer Center, Suntogun, Japan
,
Kazuma Ishikawa
3   Department of Medical Oncology, Sapporo Medical University, Sapporo, Japan (Ringgold ID: RIN13035)
,
Junya Sato
1   Division of Endoscopy, Shizuoka Cancer Center, Nagaizumi, Japan
,
1   Division of Endoscopy, Shizuoka Cancer Center, Nagaizumi, Japan
,
Kenichiro Imai
1   Division of Endoscopy, Shizuoka Cancer Center, Nagaizumi, Japan
,
Kinichi Hotta
1   Division of Endoscopy, Shizuoka Cancer Center, Nagaizumi, Japan
,
Hiroyuki Ono
1   Division of Endoscopy, Shizuoka Cancer Center, Nagaizumi, Japan
› Author Affiliations

Abstract

Background and study aims Endoscopic transpapillary biliary forceps biopsy (TBFB) is a common method for obtaining specimens from biliary lesions. Its diagnostic yield is unsatisfactory; to overcome this disadvantage, a dedicated sheath has been developed. This study aimed to evaluate the outcomes of conventional TBFB and TBFB with a novel sheath device.

Patients and methods Consecutive patients who underwent TBFB between January 2020 and December 2021 were retrospectively evaluated. The rate of obtaining adequate samples, failed attempts at forceps insertion into the bile duct, and sensitivity were compared between the two groups.

Results Ninety-two patients who underwent 115 endoscopic retrograde cholangiopancreatographies (76 in the conventional group vs. 39 in the dedicated sheath group) were included. The rates of obtaining adequate samples, failed attempts of the forceps into the bile duct, and sensitivity were 72.4% vs. 89.7% (P = 0.03), 28.3% vs. 0% (P < 0.01), and 66.7% vs. 88.9% (P = 0.02), respectively.

Conclusions TBFB with the novel sheath device contributed to improved sensitivity for diagnosis of biliary stricture without insertion of forceps outside the bile duct.



Publication History

Received: 05 November 2023

Accepted after revision: 23 February 2024

Accepted Manuscript online:
11 March 2024

Article published online:
15 April 2024

© 2024. The Author(s). This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial-License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commercial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/).

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