Evidence map›Paper›PMID 33198440›Full record

ArticleClinical endoscopy2021

Cholecystitis after Placement of Covered Self-Expandable Metallic Stents in Patients with Distal Malignant Biliary Obstructions.

Masafumi Watanabe, Kosuke Okuwaki, Jun Woo, Mitsuhiro Kida, Hiroshi Imaizumi, Tomohisa Iwai, Hiroshi Yamauchi, Toru Kaneko, Rikiya Hasegawa, Takahiro Kurosu and 3 more

Open access · goldAbstract read
In one paragraph

Article in Clinical endoscopy, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed, 1 pooled it
0.8field-weighted citation impact, top 23% 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

7 citing papers in PubMed, 1 synthesis or guideline pooled it, 20 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Review
  4. Review
  5. Article
  6. Review
  7. Endoscopic Management of Pancreatobiliary Malignancies.Digestive diseases and sciences · 2022
    Review
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

13 authors at 1 institution in 1 country.

Masafumi WatanabeDepartment of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Kosuke OkuwakiDepartment of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Jun WooDepartment of Diagnostic Radiology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Mitsuhiro KidaDepartment of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Hiroshi ImaizumiDepartment of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Tomohisa IwaiDepartment of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Hiroshi YamauchiDepartment of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Toru KanekoDepartment of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Rikiya HasegawaDepartment of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Takahiro KurosuDepartment of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Naoki MinatoDepartment of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Hiroki HaradomeDepartment of Radiological Advanced Medicine, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Wasaburo KoizumiDepartment of Gastroenterology, Kitasato University School of Medicine, Sagamihara, Kanagawa, Japan.
Kitasato University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND/

aimsCholecystitis can occur after the placement of covered self-expandable metallic stents for distal malignant biliary obstructions. We aimed to identify risk factors for cholecystitis following covered self-expandable metallic stent placement.

methodsWe investigated risk factors related to cholecystitis following covered self-expandable metallic stent placement in 118 patients with distal malignant biliary obstructions between January 1, 2015 and April 30, 2019. Endoscopic assessments and tumor invasion to the arteries feeding the gallbladder were determined by a pancreaticobiliary endoscopist and a radiologist, respectively.

resultsThe median patient age was 72 years (men, 61.0%). The flow of the contrast agent into the gallbladder and tumor involvement in the orifice of the cystic duct were observed in 35 (29.7%) and 35 (29.7%) patients, respectively. During the observation period (median, 179 days), cholecystitis occurred in 18 (15.3%) patients. Multivariate analysis revealed the flow of the contrast agent into the gallbladder (p=0.023) and tumor involvement in the orifice of the cystic duct (p=0.005) as significant independent risk factors associated with cholecystitis.

conclusionThe flow of the contrast agent into the gallbladder and tumor involvement in the orifice of the cystic duct are potential independent risk factors for cholecystitis following the placement of covered self-expandable metallic stents. A follow-up prospective study is warranted to validate their influence.

Indexed as

CholecystitisEndoscopic retrograde cholangiopancreatographyMalignant biliary obstructionRisk factorsSelf-expandable metallic stents

Identifiers

PMID33198440
PMCPMC8357581
OpenAlexW3103420790

What OpenQuestion holds

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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.