Evidence map›Paper›PMID 35072023›Full record

ArticleCJC open2022

Impact of Clopidogrel Stop Interval on Major Adverse Bleeding Events in Cardiac Surgery.

Bright Huo, Gregory M Hirsch, Steve Doucette, Christine R Herman, Ryan Gainer, Ahmed T Mokhtar

Abstract read
In one paragraph

Article in CJC open, 2022. 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. BMJ case reports · 2025
    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

6 authors.

Bright HuoFaculty of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada.
Gregory M HirschDivision of Cardiac Surgery, Department of Surgery, Dalhousie University, Halifax, Nova Scotia, Canada.
Steve DoucetteDivision of Cardiac Surgery, Department of Surgery, Dalhousie University, Halifax, Nova Scotia, Canada.
Christine R HermanDivision of Cardiac Surgery, Department of Surgery, Dalhousie University, Halifax, Nova Scotia, Canada.
Ryan GainerDivision of Cardiac Surgery, Department of Surgery, Dalhousie University, Halifax, Nova Scotia, Canada.
Ahmed T MokhtarDivision of Cardiology, Department of Medicine, Dalhousie University, Halifax, Nova Scotia, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMajor societal guidelines recommend a 5-day stop interval before cardiac surgery for patients with acute coronary syndrome receiving clopidogrel. Yet, many such patients present with high acuity, generating surgeon inclination toward use of shorter stop intervals. Thus, this study aimed to determine the impact of the duration and timing of the interval of clopidogrel cessation on adverse bleeding events.

methodsPatients who underwent cardiac surgery between 2009 and 2016 at a tertiary-care centre were included in this retrospective cohort study. Multivariable logistic regression models adjusted for clopidogrel stop interval, age, urgency of procedure, and procedure type were used to quantify the effect of clinically relevant baseline demographic characteristics on incidence of massive transfusion as well as hemorrhagic complication outcomes.

resultsA total of 5748 patients underwent cardiac surgery. In this cohort, 1743 patients (30.3%) received clopidogrel preoperatively, and 884 (50.7%) of these patients discontinued clopidogrel 5 days before presenting to the operating room. The administration of clopidogrel 1-2 days before surgery (odds ratio 1.97; 95% confidence interval: 1.18 to 3.29) was an independent predictor for massive transfusions and hemorrhagic complications (odds ratio 1.85; 95% confidence interval: 1.01 to 3.37). The 3-4 day group did not have an increased risk of major bleeding complications. The risk for both massive transfusions and hemorrhagic complications also increased with the urgency and complexity of surgery.

conclusionA clopidogrel stop interval of 3-4 days preoperatively was not associated with an increased risk for major bleeding complications.

Identifiers

PMID35072023
PMCPMC8767124

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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.