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CABG in calcified aorta under circulatory arrest
D D Reddy1, H S Floten, H L Gately
1St. Vincent Hospital and Medical Center, Portland, OR 97225, USA.
Insights
Coronary artery bypass grafting in patients with a calcified aorta is challenging. A novel technique without aortic cross-clamping and using circulatory arrest offers a safer alternative for this complex patient group.
Area of Science:
- Cardiovascular Surgery
- Thoracic Surgery
- Vascular Surgery
Background:
- Calcified aorta poses significant risks during coronary artery bypass grafting (CABG), particularly concerning cerebral and peripheral embolism.
- Standard CABG techniques involving aortic cannulation and proximal anastomosis are difficult and hazardous in patients with severe aortic calcification.
Purpose of the Study:
- To present a simplified and safer alternative for CABG in patients with a calcified aorta.
- To evaluate the feasibility of performing CABG without aortic cross-clamping and proximal anastomosis.
Main Methods:
- Coronary artery bypass grafting was performed without cross-clamping the aorta.
- Proximal anastomosis was created at a soft spot on the aorta under circulatory arrest.
- This approach aimed to mitigate the risks associated with aortic manipulation in calcified aortas.
Main Results:
- The described technique offers a potentially simple and safe alternative for managing complex cases of CABG in patients with calcified aortas.
- This method may reduce the incidence of embolic complications associated with traditional aortic cannulation and anastomosis.
Conclusions:
- Coronary artery bypass grafting without aortic cross-clamping and proximal anastomosis under circulatory arrest is a viable alternative for patients with calcified aortas.
- This approach addresses the formidable challenges posed by aortic calcification, potentially improving patient safety and outcomes.
Abstract:
Coronary artery bypass grafting in patients with calcified aorta presents a formidable problem in terms of cannulation and proximal anastomosis with its attending risks of cerebral and peripheral embolism. Coronary artery bypass grafting without cross-clamping and proximal anastomosis to the aorta at a soft spot under circulatory arrest may be a simple and safe alternative to a difficult clinical problem.