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TOKYO criteria 2014 for transpapillary biliary stenting.
Hiroyuki Isayama1, Tsuyoshi Hamada, Ichiro Yasuda
1Department of Gastroenterology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan.
Summary
A new standardized system, the TOKYO criteria 2014, addresses inconsistent biliary stent evaluation. This system enables better comparison of stent performance across studies, improving clinical care.
Area of Science:
- Gastroenterology
- Endoscopic procedures
- Medical device evaluation
Background:
- Lack of uniform evaluation methods hinders meta-analyses and comparisons of biliary stent studies.
- Existing methods do not adequately capture stent performance, leading to inconsistencies in research.
Purpose of the Study:
- To introduce the TOKYO criteria 2014, a novel standardized system for reporting on biliary stents.
- To establish a consensus-based framework for evaluating biliary stent outcomes among Japanese pancreatobiliary endoscopists.
Main Methods:
- Developed the TOKYO criteria 2014 based on expert consensus.
- Defined recurrent biliary obstruction (including occlusion and migration) as a key metric.
- Proposed standardized reporting for causes, complications, severity, success rates, and clinical care.
Main Results:
- The TOKYO criteria 2014 allow for the evaluation of both plastic and self-expandable metallic stents (covered and uncovered).
- This system facilitates the comparison of biliary stent quality across diverse studies.
- It standardizes the assessment of stent performance and patient outcomes.
Conclusions:
- The TOKYO criteria 2014 provide a much-needed standardized framework for biliary stent reporting.
- This system is expected to improve the quality and comparability of research in pancreatobiliary endoscopy.
- Future development should incorporate evaluation methods for transmural stenting techniques.
