Evidence map›Paper›PMID 34172378›Full record

ArticleHPB : the official journal of the International Hepato Pancreato Biliary Association2022

Consensus guidelines on the role of cholangioscopy to diagnose indeterminate biliary stricture.

Phonthep Angsuwatcharakon, Santi Kulpatcharapong, Jong H Moon, Mohan Ramchandani, James Lau, Hiroyuki Isayama, Dong W Seo, Amit Maydeo, Hsiu-P Wang, Yousuke Nakai and 13 more

Open access · hybridAbstract readConsensus Statement
PubMed Publisher
In one paragraph

Article in HPB : the official journal of the International Hepato Pancreato Biliary Association, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 4 pooled it
5.4field-weighted citation impact, top 3% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

32 citing papers in PubMed, 4 syntheses or guidelines pooled it, 56 citations in OpenAlex.

  1. Clinical Practice Guidelines for Peroral Cholangioscopy.Journal of hepato-biliary-pancreatic sciences · 2026
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  19. Imaging of Benign Biliary Tract Disease.The Indian journal of radiology & imaging · 2024
    Review
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

23 authors at 16 institutions in 11 countries.

Phonthep AngsuwatcharakonDivision of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand; Department of Anatomy, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
Santi KulpatcharapongDivision of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
Jong H MoonDigestive Disease Center and Research Institute, Department of Internal Medicine, SoonChunHyang University School of Medicine, Bucheon, Seoul, South Korea.
Mohan RamchandaniAsian Institute of Gastroenterology, Hyderabad, India.
James LauDepartment of Surgery, Endoscopic Center, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China.
Hiroyuki IsayamaDepartment of Gastroenterology, Graduate School of Medicine, Juntendo University, Tokyo, Japan.
Dong W SeoDepartment of Internal Medicine, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.
Amit MaydeoBaldota Institute of Digestive Sciences, Global Gleneagles Hospital, Mumbai, India.
Hsiu-P WangDepartment of Internal Medicine, College of Medicine, National Taiwan University, Taipei, Taiwan.
Yousuke NakaiDepartments of Endoscopy and Endoscopic Surgery, The University of Tokyo, Tokyo, Japan.
Thawee Ratanachu-EkDepartment of Surgery, Rajavithi Hospital, Bangkok, Thailand.
Amol BapayeShivanand Desai Center for Digestive Disorders, Deenanath Mangeshkar Hospital & Research Center, India.
Bing HuDepartment of Gastroenterology, Eastern Hepatobiliary Hospital, Naval Medical University, Shanghai, China.
Benedict DevereauxUniversity of Queensland, Royal Brisbane and Women's Hospital, Brisbane, Queensland, Australia.
Ryan PonnuduraiPrince Court Medical Center, Kuala Lumpur, Malaysia.
Christopher KhorDepartment of Gastroenterology and Hepatology, Singapore General Hospital and Duke-NUS Medical School, Singapore.
Pradermchai KongkamDivision of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
Nonthalee PausawasdiDivision of Gastroenterology, Department of Internal Medicine, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand.
Wiriyaporn RidtitidDivision of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
Panida PiyachaturawatDivision of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand.
Pham C KhanhDepartment of Endoscopy, University Medical Center, Ho Chi Minh City, Viet Nam.
Federick DySection of Gastroenterology, Department of Internal Medicine, Faculty of Medicine and Surgery, University of Santo Tomas Hospital, Manila, Philippines.
Rungsun RerknimitrDivision of Gastroenterology, Department of Medicine, Faculty of Medicine, Chulalongkorn University and King Chulalongkorn Memorial Hospital, Bangkok, Thailand; Center of Excellence for Innovation and Endoscopy in Gastrointestinal Oncology, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand. Electronic address: ercp@live.com.
Chulalongkorn University · THAsian Institute of Gastroenterology · INChinese University of Hong Kong · HKDeenanath Mangeshkar Hospital and Research Center · INJuntendo University · JPNational Taiwan University · TWRajavithi Hospital · THSecond Military Medical University · CNSingapore General Hospital · SGSiriraj Hospital · THSoonchunhyang University · KRThe University of Queensland · AUThe University of Tokyo · JPUlsan College · KRUniversity Medical Center HCMC · VNUniversity of Santo Tomas Hospital · PH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIndeterminate strictures pose a therapeutic dilemma. In recent years, cholangioscopy has evolved and the availability of cholangioscopy has increased. However, the position of cholangioscopy in the diagnostic algorithm to diagnose malignancy have not been well established. We aim to develop a consensus statement regarding the clinical role of cholangioscopy in the diagnosis of indeterminate biliary strictures.

methodsThe international experts reviewed the evidence and modified the statements using a three-step modified Delphi method. Each statement achieves consensus when it has at least 80% agreement.

resultsNine final statements were formulated. An indeterminate biliary stricture is defined as that of uncertain etiology under imaging or tissue diagnosis. When available, cholangioscopic assessment and guided biopsy during the first round of ERCP may reduce the need to perform multiple procedures. Cholangioscopy are helpful in diagnosing malignant biliary strictures by both direct visualization and targeted biopsy. The absence of disease progression for at least 6 months is supportive of non-malignant etiology. Direct per-oral cholangioscopy provides the largest accessory channel, better image definition, with image enhancement but is technically demanding. Image enhancement during cholangioscopy may increase the diagnostic sensitivity of visual impression of malignant biliary strictures. Cholangioscopic imaging characteristics including tumor vessels, papillary projection, nodular or polypoid mass, and infiltrative lesions are highly suggestive for neoplastic/malignant biliary disease. The risk of cholangioscopy related cholangitis is higher than in standard ERCP, necessitating prophylactic antibiotics and ensuring adequate biliary drainage. Per-oral cholangioscopy may not be the modality of choice in the evaluation of distal biliary strictures due to inherent technical difficulties.

conclusionEvidence supports that cholangioscopy has an adjunct role to abdominal imaging and ERCP tissue acquisition in order to evaluate and diagnose indeterminate biliary strictures.

Indexed as

Biliary Tract Surgical ProceduresCholestasisBiopsyConsensusConstriction, PathologicHumans

Identifiers

PMID34172378
OpenAlexW3167478020

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.