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Related Experiment Video

Updated: Mar 31, 2026

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The Unplanned Postoperative Coronary Angiogram after CABG: Identifying the Patients at Risk.

Felix Fleißner1, Ismail Issam1, Andreas Martens1

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The Thoracic and Cardiovascular Surgeon
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Summary
This summary is machine-generated.

Urgent postoperative coronary angiograms after coronary artery bypass grafting (CABG) are uncommon but reveal significant need for reintervention. Early identification of high-risk patients for prompt angiography is crucial to improve outcomes.

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Area of Science:

  • Cardiovascular Surgery
  • Interventional Cardiology
  • Cardiac Imaging

Background:

  • Coronary artery bypass grafting (CABG) is standard for multi-vessel coronary artery disease (CAD).
  • Optimal methods for immediate postoperative bypass graft patency assessment are lacking.
  • Routine "post-completion" control angiograms are not standard practice.

Purpose of the Study:

  • To evaluate the incidence and outcomes of urgent postoperative coronary angiograms (CA) following CABG.
  • To identify risk factors associated with the need for unplanned postoperative CA.
  • To assess the impact of urgent CA on subsequent interventions and mortality.

Main Methods:

  • Retrospective analysis of 6,025 patients undergoing CABG between January 2005 and June 2011.
  • Urgent postoperative CA was performed in cases of elevated cardiac enzymes, new ECG changes, or decreased left ventricular function.
  • Multivariate risk analysis was used to identify predictors for unplanned CA.

Main Results:

  • 1.8% (106 patients) underwent urgent post-CABG CA, with a 30-day mortality of 8.5%.
  • 24% required bypass revision, and 32% underwent percutaneous coronary intervention (PCI) or stenting.
  • Higher risk for unplanned CA was associated with younger age, female sex, smaller body size, and combined arterial/venous grafting.

Conclusions:

  • Urgent post-CABG CA is infrequently needed but often leads to reintervention.
  • High mortality underscores the importance of timely CA in indicated patients.
  • Consider early CA for high-risk individuals or intraoperative assessment to optimize graft outcomes.