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Published on: November 24, 2014
Off-pump coronary artery bypass grafting decreases risk-adjusted mortality and morbidity
J C Cleveland1, A L Shroyer, A Y Chen
1Division of Cardiothoracic Surgery, University of Colorado Health Sciences Center, Denver 80262, USA. joseph.cleveland@uchsc.edu
Insights
Off-pump coronary artery bypass grafting (CABG) reduces operative death and major complications compared to conventional CABG. This surgical approach may be superior for selected patients, improving outcomes in cardiac surgery.
Area of Science:
- Cardiovascular Surgery
- Thoracic Surgery
- Medical Outcomes Research
Background:
- Coronary artery bypass grafting (CABG) is a common cardiac surgery procedure.
- The development of off-pump CABG aimed to reduce surgical risks.
- Patient selection is crucial for optimizing CABG outcomes.
Purpose of the Study:
- To evaluate the safety and efficacy of off-pump CABG.
- To compare operative mortality and major complications between off-pump and conventional CABG.
- To assess the impact of off-pump CABG in selected patient populations.
Main Methods:
- Analysis of The Society of Thoracic Surgeons (STS) National Adult Cardiac Surgery Database.
- Comparison of procedural outcomes for conventional versus off-pump CABG from 1998-1999.
- Risk-adjusted analysis of mortality and major complications using baseline patient factors.
Main Results:
- Over 118,000 CABG procedures were analyzed, with 9.9% performed off-pump.
- Off-pump CABG showed a significant reduction in risk-adjusted operative mortality (2.3% vs. 2.9%).
- Major complication rates were significantly lower with off-pump CABG (10.62% vs. 14.15%).
Conclusions:
- Off-pump CABG is associated with decreased mortality and morbidity.
- The findings suggest off-pump CABG may be a superior alternative to conventional CABG for appropriately selected patients.
- Further research may explore long-term outcomes and expanded indications for off-pump CABG.
Background:
The purpose of this study was to determine whether coronary artery bypass grafting without cardiopulmonary bypass (off-pump CABG) decreases risk-adjusted operative death and major complications after coronary artery bypass grafting in selected patients.
Methods:
Using The Society of Thoracic Surgeons (STS) National Adult Cardiac Surgery Database, procedural outcomes were compared for conventional and off-pump CABG procedures from January 1, 1998, through December 31, 1999. Mortality and major complications were examined, both as unadjusted rates and after adjusting for known base line patient risk factors.
Results:
A total of 126 experienced centers performed 118,140 total CABG procedures. The number of off-pump CABG cases was 11,717 cases (9.9% of total cases). The use of an off-pump procedure was associated with a decrease in risk-adjusted operative mortality from 2.9% with conventional CABG to 2.3% in the off-pump group (p < 0.001). The use of an off-pump procedure decreased the risk-adjusted major complication rate from 14.15% with conventional CABG to 10.62% in the off-pump group (p < 0.0001). Patients receiving off-pump procedures were less likely to die (adjusted odds ratio 0.81, 95% CI 0.70 to 0.91) and less likely to have major complications (adjusted odds ratio 0.77, 95% CI 0.72 to 0.82).
Conclusions:
Off-pump CABG is associated with decreased mortality and morbidity after coronary artery bypass grafting. Off-pump CABG may prove superior to conventional CABG in appropriately selected patients.
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