Evidence map›Paper›PMID 34112216›Full record

SynthesisJournal of cardiothoracic surgery2021

Patient and hospital factors associated with 30-day readmissions after coronary artery bypass graft (CABG) surgery: a systematic review and meta-analysis.

Md Shajedur Rahman Shawon, Michael Odutola, Michael O Falster, Louisa R Jorm

2 registry-linked trialsOpen access · goldAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Journal of cardiothoracic surgery, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to 2 registered trials, which are not on this map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
7.1field-weighted citation impact, top 2% 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.

NCT06317363 nacompletednot on this mapstarted 2023, after this paper: background citation

Effects of Acapella VS Chest Physiotherapy on Dyspnea, Pulmonary Functions and Air Way Clearance in Post-Operative CABG Patients

TypeinterventionalSponsorRiphah International UniversityRan2023 to 2024Enrolled30ConditionsCABGArmsBase Line + ACEPELLA, Base Line + Manual Chest Physiotherapy
NCT07611045 recruitingnot on this mapstarted 2026, after this paper: background citation

Cardiac Surgery Aftercare and Recovery Evaluation (CARE) - Understanding Patients' and Carers' Views About the Care Received After Leaving Hospital Following Cardiac Surgery: a Qualitative Study

Typeobservational_patient_registrySponsorUniversity Hospitals Bristol and Weston NHS Foundation TrustRan2026 to 2027Enrolled24ConditionsCardiac Surgery
3 · Its place in the literature

Who cites it

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 59 citations in OpenAlex.

  1. Pooled it
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  5. Article
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  8. Five-Year Hospital Readmission After Isolated Coronary Artery Bypass Grafting in the United Kingdom.European journal of cardio-thoracic surgery : official journal of the European Association for Cardio-thoracic Surgery · 2026
    Article
  9. Article
  10. Trends and Impact ofGastroenterology research · 2026
    Article
  11. Article
  12. Coronary Artery Bypass Grafting: A Review of Short- and Long-Term Outcomes.The International journal of angiology : official publication of the International College of Angiology, Inc · 2025
    Review
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  14. Article
  15. Article
  16. Article
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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

4 authors at 1 institution in 1 country.

Md Shajedur Rahman ShawonCentre for Big Data Research in Health, University of New South Wales (UNSW) Sydney, Kensington, Australia. s.shawon@unsw.edu.au.ORCID http://orcid.org/0000-0003-4502-1457
Michael OdutolaCentre for Big Data Research in Health, University of New South Wales (UNSW) Sydney, Kensington, Australia.
Michael O FalsterCentre for Big Data Research in Health, University of New South Wales (UNSW) Sydney, Kensington, Australia.
Louisa R JormCentre for Big Data Research in Health, University of New South Wales (UNSW) Sydney, Kensington, Australia.
UNSW Sydney · AU

Funding

National Health and Medical Research Council 1120062National Health and Medical Research Council 1139133
6 · The paper itself

Abstract

backgroundReadmission after coronary artery bypass graft (CABG) surgery is associated with adverse outcomes and significant healthcare costs, and 30-day readmission rate is considered as a key indicator of the quality of care. This study aims to: quantify rates of readmission within 30 days of CABG surgery; explore the causes of readmissions; and investigate how patient- and hospital-level factors influence readmission.

methodsWe conducted systematic searches (until June 2020) of PubMed and Embase databases to retrieve observational studies that investigated readmission after CABG. Random effect meta-analysis was used to estimate rates and predictors of 30-day post-CABG readmission.

resultsIn total, 53 studies meeting inclusion criteria were identified, including 8,937,457 CABG patients. The pooled 30-day readmission rate was 12.9% (95% CI: 11.3-14.4%). The most frequently reported underlying causes of 30-day readmissions were infection and sepsis (range: 6.9-28.6%), cardiac arrythmia (4.5-26.7%), congestive heart failure (5.8-15.7%), respiratory complications (1-20%) and pleural effusion (0.4-22.5%). Individual factors including age (OR per 10-year increase 1.12 [95% CI: 1.04-1.20]), female sex (OR 1.29 [1.25-1.34]), non-White race (OR 1.15 [1.10-1.21]), not having private insurance (OR 1.39 [1.27-1.51]) and various comorbidities were strongly associated with 30-day readmission rates, whereas associations with hospital factors including hospital CABG volume, surgeon CABG volume, hospital size, hospital quality and teaching status were inconsistent.

conclusionsNearly 1 in 8 CABG patients are readmitted within 30 days and the majority of these are readmitted for noncardiac causes. Readmission rates are strongly influenced by patients' demographic and clinical characteristics, but not by broadly defined hospital characteristics.

Indexed as

Coronary Artery BypassHospitalsHumansModels, StatisticalPatient ReadmissionPostoperative ComplicationsRisk Factors30-day readmissionCabgCoronary artery bypass graftHospital factorsHospitalisationPatient factorsReadmission

Identifiers

PMID34112216
PMCPMC8194115
OpenAlexW3170943096

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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.