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Coronary artery stabilization causes endothelial damage: an electron microscopic study on dogs
O Sokullu1, H Karabulut, H Gercekoglu
1Dr Siyami Ersek Thoracic and Cardiovascular Surgery Center, Department of Cardiovascular Surgery, Istanbul, Turkey
Cardiovascular Surgery (London, England)
|June 23, 2001
Summary
Bulldog occluders caused less coronary artery endothelial injury compared to prolene sutures during off-pump coronary artery bypass surgery. This finding aids in selecting safer immobilization techniques for coronary artery bypass grafting.
Area of Science:
- Cardiovascular Surgery
- Surgical Devices
- Endothelial Biology
Background:
- Off-pump coronary artery bypass (OPCAB) surgery is performed to avoid cardiopulmonary bypass complications.
- Effective coronary artery immobilization is crucial for successful anastomosis in OPCAB.
- Current immobilization methods include sutures, occluders, and mechanical devices.
Purpose of the Study:
- To evaluate the endothelial damage caused by different coronary artery stabilization devices.
- To compare the safety of prolene sutures versus bulldog occluders for coronary artery immobilization.
Main Methods:
- Sixteen dogs were divided into four groups, including a control group.
- Groups II, III, and IV underwent coronary artery immobilization using different techniques.
- Coronary artery biopsies were analyzed using scanning electron microscopy (SEM) for endothelial injury.
Main Results:
- Bulldog occluders resulted in less endothelial injury compared to prolene immobilization sutures.
- SEM analysis provided quantitative scoring of endothelial damage across different techniques.
Conclusions:
- Bulldog occluders appear to be a safer option for coronary artery immobilization during OPCAB surgery.
- Minimizing endothelial damage is essential for preventing adverse outcomes after coronary artery bypass procedures.