Evidence map›Paper›PMID 35646282›Full record

ArticleWorld journal of gastrointestinal oncology2022

Digital single-operator cholangioscopy for biliary stricture after cadaveric liver transplantation.

Jian-Feng Yu, Dong-Lei Zhang, Yan-Bin Wang, Jian-Yu Hao

Open access · diamondAbstract read
In one paragraph

Article in World journal of gastrointestinal oncology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed, 1 pooled it
1.2field-weighted citation impact, top 21% 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

3 citing papers in PubMed, 1 synthesis or guideline pooled it, 8 citations in OpenAlex.

  1. Clinical Practice Guidelines for Peroral Cholangioscopy.Journal of hepato-biliary-pancreatic sciences · 2026
    Guideline
  2. Article
  3. [Gastrointestinal endoscopy in the diagnosis and treatment of biliary liver disease].Zhonghua gan zang bing za zhi = Zhonghua ganzangbing zazhi = Chinese journal of hepatology · 2022
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 1 country.

Jian-Feng YuDepartment of Gastroenterology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China.
Dong-Lei ZhangDepartment of Gastroenterology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China.
Yan-Bin WangDepartment of Gastroenterology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China.
Jian-Yu HaoDepartment of Gastroenterology, Beijing Chao-Yang Hospital, Capital Medical University, Beijing 100020, China. haojianyuxhnk@sina.cn.
Capital Medical University · CNBeijing Chao-Yang Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBiliary strictures after liver transplantation (LT) remain clinically arduous and challenging situations, and endoscopic retrograde cholangiopancreatography (ERCP) has been considered as the gold standard for the management of biliary strictures after LT. Nevertheless, in the treatment of biliary strictures after LT with ERCP, many studies show that there is a large variation in diagnostic accuracy and therapeutic success rate. Digital single-operator peroral cholangioscopy (DSOC) is considered a valuable diagnostic modality for indeterminate biliary strictures.

aimTo evaluate DSOC in addition to ERCP for management of biliary strictures after LT.

methodsNineteen patients with duct-to-duct biliary reconstruction who underwent ERCP for suspected biliary complications between March 2019 and March 2020 at Beijing Chaoyang Hospital, Capital Medical University, were consecutively enrolled in this observational study. After evaluating bile ducts using fluoroscopy, cholangioscopy using a modern digital single-operator cholangioscopy system (SpyGlass DS™) was performed during the same procedure with patients under conscious sedation. All patients received peri-interventional antibiotic prophylaxis. Biliary strictures after LT were classified according to the manifestations of choledochoscopic strictures and the manifestations of transplanted hepatobiliary ducts.

resultsTwenty-one biliary strictures were found in a total of 19 patients, among which anastomotic strictures were evident in 18 (94.7%) patients, while non-anastomotic strictures in 2 (10.5%), and space-occupying lesions in 1 (5.3%). Stones were found in 11 (57.9%) and loose sutures in 8 (42.1%). A benefit of cholangioscopy was seen in 15 (78.9%) patients. Cholangioscopy was crucial for selective guidewire placement prior to planned intervention in 4 patients. It was instrumental in identifying biliary stone and/or loose sutures in 9 patients in whom ERCP failed. It also provided a direct vision for laser lithotripsy. A space-occupying lesion in the bile duct was diagnosed by cholangioscopy in one patient. Patients with biliary stricture after LT displayed four types: (A) mild inflammatory change (

conclusionDSOC can provide important diagnostic information, helping plan and perform interventional procedures in LT-related biliary strictures.

Indexed as

Biliary anastomotic strictureBiliary complicationsBiliary stricturesCholangioscopyEndoscopic retrograde cholangiopancreatographyLiver transplantation

Identifiers

PMID35646282
PMCPMC9124986
OpenAlexW4229451829

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.