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Case Report

Endoscopic Diagnosis of Biliary Stricture Combined with Digital Cholangioscope: A Case Series

1
Center for Diagnostic and Therapeutic Endoscopy, Keio University School of Medicine, Tokyo 160-8582, Japan
2
National Hospital Organization Tokyo Medical Center, Division of Gastroenterology and Hepatology, Tokyo 152-8902, Japan
3
Division of Gastroenterology and Hepatology, Department of Internal Medicine, Keio University School of Medicine, Tokyo 160-8582, Japan
4
Department of Surgery, Keio University School of Medicine, Tokyo 160-8582, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: Daniele Giansanti
Healthcare 2022, 10(1), 12; https://doi.org/10.3390/healthcare10010012
Received: 13 November 2021 / Revised: 18 December 2021 / Accepted: 20 December 2021 / Published: 22 December 2021
The endoscopic diagnosis of biliary tract lesions is applied as a non-invasive method; however, its diagnostic accuracy is not yet high. Moreover, digital cholangioscopy is used for directly visualizing the inside of the bile duct, resulting in a more precise biopsy. We present the case series of the outcomes of diagnosis using digital cholangioscopy in patients who underwent cholangioscopy for the evaluation of biliary stenosis in our department between January 2014 and March 2021. The controls were those who underwent a biopsy for biliary stenosis with conventional endoscopic retrograde cholangiopancreatography (ERCP). Background data for each case were collected, and the clinical outcomes by biopsy were evaluated, focusing on the accuracy of the diagnosis. Cholangioscopy was performed in 15 cases, while a conventional biopsy by ERCP was performed in 172 cases. Nine of 15 cases (60.0%) were diagnosed with cholangiocarcinoma. The number of specimens obtained through conventional ERCP and cholangioscopy was 2.5 ± 1.3 and 3.3 ± 1.5, respectively (p = 0.043). The diagnostic accuracy of conventional ERCP and cholangioscopy were 65.7% (113 of 172 cases) and 100%, respectively, which was significantly higher in the group with cholangioscopy. Digital cholangioscopy is useful when the diagnosis of the biliary stricture using the conventional ERCP method is difficult. View Full-Text
Keywords: biliary stenosis; digital cholangioscopy; biopsy; endoscopic retrograde cholangiopancreatography biliary stenosis; digital cholangioscopy; biopsy; endoscopic retrograde cholangiopancreatography
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MDPI and ACS Style

Fukuhara, S.; Iwasaki, E.; Kayashima, A.; Machida, Y.; Tamagawa, H.; Kawasaki, S.; Horibe, M.; Hori, S.; Abe, Y.; Kitago, M.; Ogata, H.; Kanai, T. Endoscopic Diagnosis of Biliary Stricture Combined with Digital Cholangioscope: A Case Series. Healthcare 2022, 10, 12. https://doi.org/10.3390/healthcare10010012

AMA Style

Fukuhara S, Iwasaki E, Kayashima A, Machida Y, Tamagawa H, Kawasaki S, Horibe M, Hori S, Abe Y, Kitago M, Ogata H, Kanai T. Endoscopic Diagnosis of Biliary Stricture Combined with Digital Cholangioscope: A Case Series. Healthcare. 2022; 10(1):12. https://doi.org/10.3390/healthcare10010012

Chicago/Turabian Style

Fukuhara, Seiichiro, Eisuke Iwasaki, Atsuto Kayashima, Yujiro Machida, Hiroki Tamagawa, Shintaro Kawasaki, Masayasu Horibe, Shutaro Hori, Yuta Abe, Minoru Kitago, Haruhiko Ogata, and Takanori Kanai. 2022. "Endoscopic Diagnosis of Biliary Stricture Combined with Digital Cholangioscope: A Case Series" Healthcare 10, no. 1: 12. https://doi.org/10.3390/healthcare10010012

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