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Published in: Surgical Endoscopy 5/2020

01-05-2020 | Pancreatitis

Digital single-operator video cholangioscopy in treating refractory biliary stones: a multicenter observational study

Authors: Arne Bokemeyer, Christian Gerges, Diana Lang, Dominik Bettenworth, Iyad Kabar, Hartmut Schmidt, Horst Neuhaus, Hansjoerg Ullerich, Frank Lenze, Torsten Beyna

Published in: Surgical Endoscopy | Issue 5/2020

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Abstract

Background

Standard endoscopic treatment might fail to treat biliary stone disease. Here, we investigated the efficacy and safety of recently introduced digital single-operator video cholangioscopy (SOVC) for the treatment of difficult biliary stones.

Methods

Digital SOVC procedures, performed in two tertiary referral centers between 2015 and 2018, were retrospectively analyzed. Only patients with a previous failure of endoscopic standard treatment and a SOVC-based biliary stone treatment using electrohydraulic lithotripsy (EHL) or laser lithotripsy (LL) were included. The primary endpoint was to evaluate the stone removal rate per procedure and per patient.

Results

In total, 75 examinations with a digital SOVC-assisted biliary stone treatment, performed in 60 patients, were identified. Biliary stones were mainly located extrahepatic (64%) and less frequently intrahepatic (36%). The median stone size was 20 mm (interquartile range [IQR]: 10–25 mm) and the median stone number was 1 (IQR: 1–2). Digital SOVC-based treatment of biliary stone disease was successful in 95% of patients and 15% needed at least two treatment sessions. Evaluated per procedure, a complete stone removal was accomplished in 67% of all examinations (including initial and repeated procedures), while an incomplete stone removal was observed in 33% of cases. The per procedure analyzes revealed that the success rates for a complete stone removal were similar between LL and EHL (66% vs. 68%; p = 0.87). Complications, such as postinterventional cholangitis and pancreatitis occurred in 16% of examinations; however, except from one case, all were mild or moderate and no procedure-associated mortality occurred.

Conclusions

Digital SOVC-assisted biliary stone treatment is highly effective even in cases with difficult biliary stones and might be considered the new standard of care for these patients. Furthermore, mild up to moderate complications were intermittently observed which might document the complexity of our included cases.
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Metadata
Title
Digital single-operator video cholangioscopy in treating refractory biliary stones: a multicenter observational study
Authors
Arne Bokemeyer
Christian Gerges
Diana Lang
Dominik Bettenworth
Iyad Kabar
Hartmut Schmidt
Horst Neuhaus
Hansjoerg Ullerich
Frank Lenze
Torsten Beyna
Publication date
01-05-2020
Publisher
Springer US
Published in
Surgical Endoscopy / Issue 5/2020
Print ISSN: 0930-2794
Electronic ISSN: 1432-2218
DOI
https://doi.org/10.1007/s00464-019-06962-0

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