Evidence map›Paper›PMID 21948340›Full record

Trial reportDigestive diseases and sciences2012

Metallic or plastic stent for bile duct obstruction in ampullary cancer?

Su Bum Park, Hyung Wook Kim, Dae Hwan Kang, Cheol Woong Choi, Je Ho Ryu, Chong Woo Chu, Soo Yong Lee, Young Il Jeong, Hye Ju Yeo, Eun Jung Kim

Abstract readClinical TrialComparative Study
PubMed Publisher
In one paragraph

Trial report in Digestive diseases and sciences, 2012. 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
0.3field-weighted citation impact, top 39% 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, 18 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Article
  4. Article
  5. Article
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  7. Observational
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

10 authors at 2 institutions in 1 country.

Su Bum ParkDepartment of Internal Medicine, School of Medicine and Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan Medical Centers, Beomeo-ri, Mulgeum-eup, Yangsan-si, Gyeongsangnam-do 626-770, South Korea.
Hyung Wook Kim
Dae Hwan Kang
Cheol Woong Choi
Je Ho Ryu
Chong Woo Chu
Soo Yong Lee
Young Il Jeong
Hye Ju Yeo
Eun Jung Kim
Pusan National University Yangsan Hospital · KRPusan National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

BACKGROUND AND

aimsAlthough ampullary cancer is a relatively uncommon malignancy, it is frequently associated with biliary obstruction. Endoscopic biliary drainage is regarded as a palliative treatment of choice for patients with inoperable ampullary cancer. However, there are no data concerning choice of stent in this patient population. The objective of this study was to compare the efficacy of metallic and plastic stents for biliary obstruction in patients with ampullary cancer.

methodsThirty-seven patients (15 men and 22 women; median age 74.7 years) with ampullary cancer treated with endoscopic biliary drainage were enrolled. Metallic and two plastic stents were placed in 17 and 20 patients, respectively. Clinical success, stent patency, and stent malfunction were evaluated.

resultsClinical success was achieved in all patients (100%). The median period of stent patency was 132.7 days in the metallic stent group and 128.5 days in the plastic stent group (P > 0.05). Stent malfunctions developed in 17 and 19 patients in the metallic and plastic stent groups, respectively. Stent occlusion occurred in 15 (88.2%) and 15 (75%) patients and stent migration occurred in two (11.8%) and four (20%) patients in the metallic and plastic stent groups, respectively.

conclusionsEndoscopic biliary drainage using metallic or plastic stents is effective for initial endoscopic palliation in patients with obstructive jaundice because of ampullary cancer. Although metallic and plastic stents had similar clinical effect, it seems reasonable to choose two plastic stents as the first option in patients with ampullary cancer considering the cost-effectiveness.

Indexed as

MetalsPlasticsStentsAdultAgedAged, 80 and overAmpulla of VaterBile Duct NeoplasmsCholestasis, ExtrahepaticEndoscopyFemaleForeign-Body MigrationHumansMaleMiddle AgedPalliative CareMetalsPlastics

Identifiers

PMID21948340
OpenAlexW2074995712

What OpenQuestion holds

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Registered trials

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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.