Evidence map›Paper›PMID 33437691›Full record

ArticleAvicenna journal of medicine

Aspirin dosage for the prevention of graft occlusion in people undergoing coronary surgery: A systematic review and meta-analysis.

Fares Alahdab, Ruba Zuhri Yafi, Abdelkader Chaar, Ali Alrstom, Muayad Alzuabi, Omar Alhalabi, Somar Hasan, Mahmoud Mallak, Mohamad Luay Jazayerli, Qusay Haydour and 3 more

Open access · diamondAbstract read
In one paragraph

Article in Avicenna journal of medicine. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
0.4field-weighted citation impact, top 36% 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

2 citing papers in PubMed, 2 citations in OpenAlex.

  1. CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2021
    Review
  2. Management of patients after coronary artery bypass grafting surgery: a guide for primary care practitioners.CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2021
    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 10 institutions in 4 countries.

Fares AlahdabEvidence-based Practice Center, Mayo Clinic, Rochester, Michigan, USA.
Ruba Zuhri YafiFaculty of Medicine, Damascus University, Damascus, Syrian Arab Republic.
Abdelkader ChaarDepartment of Medicine, Yale New Haven Hospital, New Haven, Connecticut, USA.
Ali AlrstomDepartment of Medicine, Damascus University, Almwasat Hospital, Damascus, Syrian Arab Republic.
Muayad AlzuabiDepartment of Neurology, Medical University of South Carolina, Charleston, South Carolina.
Omar AlhalabiDivision of Cancer Medicine, University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
Somar HasanDepartment of Ophthalmology, Jena University Hospital, Jena, Germany.
Mahmoud MallakChildren's University Hospital, Damascus, Syrian Arab Republic.
Mohamad Luay JazayerliFaculty of Medicine, University of Damascus, Damascus, Syrian Arab Republic.
Qusay HaydourDepartment of Internal Medicine, Cleveland Clinic Akron General, Akron, USA.
Mohamad AlkhouliDepartment of Cardiovascular Medicine, Mayo Clinic, Rochester, Michigan, USA.
Wedad AlfarkhDepartment of Pathology, Baylor College of Medicine, Rochester, Michigan, USA.
Mohammad Hassan MuradMayo Evidence-based Practice Center (EPC), Mayo Clinic, Rochester, Michigan, USA.
Damascus University · SYMayo Clinic · USAkron General Medical Center · USAl Assad University Hospital · SYBaylor College of Medicine · USJena University Hospital · DEMayo Clinic in Arizona · USMedical University of South Carolina · USThe University of Texas MD Anderson Cancer Center · USYale New Haven Hospital · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAspirin is almost always used after coronary artery bypass graft (CABG) surgery; however, it is unclear what optimal dose should be prescribed. In this systematic review, we evaluated the effects of high versus low-dose aspirin in patients after CABG.

methodsA comprehensive database search was conducted in several databases from date of inception until February 2018. There were no language restrictions. We included studies that compared different doses of aspirin in patients that had undergone CABG surgery. We included studies that evaluated patient-important outcomes (mortality, cardiovascular events, and gastrointestinal bleeding); and if not reported, we collected data on the surrogate outcome thromboxane B2 (TXB2). We collected relevant data and performed a meta-analysis.

resultsWe identified 5903 references, and after two levels of screening by two independent reviewers, we included three randomized controlled trials in the meta-analysis with a total number of 122 participants. Mean age of trial participants was 65.63 years, and 88.68% were male. We planned to analyze all possible clinical outcomes, including mortality, recurrence, and hospitalization. However, no clinical outcomes are reported by the literature. The surrogate biochemical outcome of serum TXB2 was the only outcome reported by the eligible studies. High-dose aspirin (162-325mg once daily) achieved better suppression of TXB2 than low-dose aspirin (75-100mg once daily) (mean difference [MD], 2.00ng/mL, 95% confidence interval [CI]: 0.72-3.32; participants = 122; studies = 3; I

conclusionsWe found no clinical trials addressing any of the clinical outcomes of interest. High-dose aspirin was superior to low-dose aspirin in suppressing platelet function, a surrogate outcome. Trials evaluating clinical and patient-important outcomes are needed to better inform medical practice and fill this gap in clinical knowledge.

Indexed as

Aspirinatherosclerosiscoronary artery bypass graftmyocardial infarctionreviewsystematic review

Identifiers

PMID33437691
PMCPMC7791283
OpenAlexW3081546384

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
Read underepoch 390

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.