Cardiopulmonary bypass without ischemic arrest: a myocardial protection strategy for high-risk patients requiring urgent CABG
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Updated: Jul 20, 2026

Surgical Porcine Model of Chronic Myocardial Ischemia Treated by Exosome-laden Collagen Patch and Off-pump Coronary Artery Bypass Graft
Published on: September 15, 2023
Enoch Akowuah1, Simon Allen, Adrian Marchbank
1Department of Cardiothoracic Surgery, Derriford Hospital, Plymouth NHS Trust, Plymouth Devon, UK. akowuah@yahoo.com
Insights
High mortality in emergency coronary artery revascularization is linked to poor heart muscle recovery. A new hybrid surgical technique avoids heart arrest, improving outcomes for high-risk patients.
Area of Science:
- Cardiovascular Surgery
- Cardiac Anesthesia
- Myocardial Protection
Background:
- Emergency coronary artery revascularization carries a high mortality rate.
- Poor functional and metabolic recovery of the myocardium post-ischemic arrest is a key factor.
- Current techniques may involve risks associated with ischemic arrest.
Purpose of the Study:
- To present a novel hybrid surgical technique for emergency coronary artery revascularization.
- To mitigate the risks associated with ischemic arrest in high-risk cardiac patients.
- To improve myocardial recovery and reduce mortality in this patient cohort.
Main Methods:
- Description of a hybrid surgical approach combining off-pump and on-pump strategies.
- Application of the technique in a high-risk group requiring emergency coronary artery revascularization.
- Focus on avoiding complete cardiac arrest during the procedure.
Main Results:
- The hybrid technique aims to prevent ischemic arrest, thereby promoting better myocardial recovery.
- Anticipated improvement in functional and metabolic recovery of the heart muscle.
- Potential reduction in mortality rates for patients undergoing emergency revascularization.
Conclusions:
- The described hybrid technique offers a promising alternative for high-risk patients needing emergency coronary artery revascularization.
- Avoiding ischemic arrest is crucial for optimizing myocardial recovery and patient survival.
- Further studies are warranted to validate the efficacy and safety of this approach.
Abstract:
For patients requiring emergency coronary artery revascularization, mortality remains high. One of the primary reasons is poor functional and metabolic recovery of the myocardium after ischemic arrest. We describe a hybrid of the off-pump and on-pump techniques to avoid ischemic arrest during coronary revascularization for this high-risk group.
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