Evidence map›Paper›PMID 25354252›Full record

Trial reportPloS one2014

Outcomes and characteristics of patients undergoing percutaneous angioplasty followed by below-knee or above-knee amputation for peripheral artery disease.

Chun-Tai Mao, Ming-Lung Tsai, Chao-Yung Wang, Ming-Shien Wen, I-Chang Hsieh, Ming-Jui Hung, Chao-Hung Wang, Chun-Chi Chen, Tien-Hsing Chen

Open access · goldAbstract readClinical Trial
In one paragraph

Trial report in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.3field-weighted citation impact, top 12% 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

10 citing papers in PubMed, 25 citations in OpenAlex.

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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

9 authors at 4 institutions in 2 countries.

Chun-Tai MaoHeart Failure Center, Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Keelung, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan.
Ming-Lung TsaiDivision of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan.
Chao-Yung WangDivision of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan.
Ming-Shien WenDivision of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan.
I-Chang HsiehDivision of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan.
Ming-Jui HungHeart Failure Center, Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Keelung, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan.
Chao-Hung WangHeart Failure Center, Division of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Keelung, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan.
Chun-Chi ChenDivision of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan; College of Medicine, Chang Gung University, Taoyuan, Taiwan.
Tien-Hsing ChenDivision of Cardiology, Department of Internal Medicine, Chang Gung Memorial Hospital, Taipei, Taiwan; Department of cardiology, Chang Gung Memorial Hospital, Xiamen, China; College of Medicine, Chang Gung University, Taoyuan, Taiwan.
Chang Gung University · TWChang Gung Memorial Hospital · TWKeelung Chang Gung Memorial Hospital · TWXiamen Chang Gung Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveLittle is known about long-term outcomes among patients who receive percutaneous angioplasty (PTA) for peripheral artery disease (PAD) then undergo below-knee or above-knee amputations. We sought to determine clinical outcomes associated with below-knee or above-knee amputation, along with possible explanatory factors and treatment strategies.

methodsUsing data from Taiwan's National Health Insurance Research Database from 1997 to 2010, 7,568 adult patients were divided into three groups: lower extremity preserved (LE), below-knee amputation (BK) and above-knee amputation (AK). We assessed outcomes including major adverse cardiovascular events (MACE) and associated risk factors.

resultsOverall MACE was significantly higher in the AK group compared to the LE and BK groups, over a mean follow-up of 2.45 years (hazard ratio [HR]: 1.81; 95% confidence interval [CI]: 1.50-2.18 for AK vs. LE; HR: 1.67; 95% CI: 1.36-2.06 for AK vs. BK). However MACE were similar for the BK and LE groups (HR: 1.08; 95% CI: 0.98-1.20). Overall mortality was highest in the AK group (HR: 1.65, 95% CI: 1.34-2.04 for AK vs. BK). As for patient characteristics, atrial fibrillation was more prevalent in the AK group than in the BK group (17% vs. 7%). Independent risk factors associated with death after above- or below-knee amputation included advanced age, heart failure, dialysis, male gender and high patient volume.

conclusionThe MACE rate was highest in the AK group, whereas the LE and BK groups were similar in this regard. Furthermore, overall mortality increased with larger area of amputation.

Indexed as

AngioplastyAgedAged, 80 and overAmputation, SurgicalAtrial FibrillationFemaleHumansKneeMaleMiddle AgedPeripheral Arterial DiseaseTreatment Outcome

Identifiers

PMID25354252
PMCPMC4212984
OpenAlexW2039114038

What OpenQuestion holds

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LicenceCC BY
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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.