Evidence map›Paper›PMID 40726528›Full record

ArticleEndoscopy international open2025

Utility of a novel tapered-tip sheath system for preoperative mapping biopsy of biliary tract cancers.

Tomoaki Matsumori, Norimitsu Uza, Kazuhiro Okada, Masahiro Shiokawa, Takahisa Maruno, Yoshihiro Nishikawa, Takeshi Kuwada, Yuya Muramoto, Muneji Yasuda, Hajime Yamazaki and 4 more

Abstract read
In one paragraph

Article in Endoscopy international open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. 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

14 authors.

Tomoaki MatsumoriGastroenterology and Hepatology, Kyoto University Hospital, Kyoto City, Japan.ORCID 0000-0002-1220-6546
Norimitsu UzaGastroenterology and Hepatology, Kyoto University, Kyoto, Japan.
Kazuhiro OkadaNational Hospital Organisation Kyoto Medical Center, Kyoto, Japan.
Masahiro ShiokawaKyoto University Hospital, Kyoto, Japan.
Takahisa MarunoKyoto University Hospital, Kyoto, Japan.
Yoshihiro NishikawaKyoto University Hospital, Kyoto, Japan.
Takeshi KuwadaKyoto University Hospital, Kyoto, Japan.
Yuya MuramotoKyoto University Hospital, Kyoto, Japan.
Muneji YasudaKyoto University Hospital, Kyoto, Japan.
Hajime YamazakiSection of Clinical Epidemiology, Department of Community Medicine, Kyoto University, Kyoto, Japan.
Kojiro TauraKitano Hospital Medical Research Institute, Osaka, Japan.
Etsuro HatanoKyoto University Hospital, Kyoto, Japan.
Yuzo KodamaDivision of Gastroenterology, Department of Internal Medicine, Kobe University Graduate School of Medicine, Kobe, Japan.
Hiroshi SenoGastroenterology and Hepatology, Kyoto University Hospital, Kyoto, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background and study aims: Preoperative evaluation of biliary tract cancer progression plays a critical role in assessing resectability and in selecting the appropriate surgical procedure. This study aimed to evaluate the utility of a novel tapered-tip sheath system for mapping biopsy to assess the extent of biliary tract cancer. Patients and methods: This observational, comparative study included 32 patients who were diagnosed with biliary tract cancers and underwent mapping biopsies with the novel tapered-tip sheath system and 21 patients using the conventional methods before the period. Technical success, total biopsy time, number of biopsy specimens, appropriate tissue sampling, adverse events (AEs), and negative surgical margin in case of surgical resection were evaluated. Results: The following were the respective results for the novel system and conventional methods groups: technical success rates, 73.3% and 48.4% ( Conclusions: Preoperative mapping biopsy using the novel tapered-tip sheath system is a promising option for assessing the extent of biliary tract cancers.

Indexed as

CholangioscopyDiagnostic ERCPancreatobiliary (ERCP/PTCD)StricturesTissue diagnosis

Identifiers

PMID40726528
PMCPMC12303023

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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.