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Noncoronary collateral distribution in coronary artery disease
The Annals of Thoracic Surgery
|December 1, 1981
Summary
Noncoronary collateral flow can hinder myocardial protection during cold cardioplegia. This flow is significantly directed towards arteries with intercoronary collateral flow, potentially complicating protection in patients with extensive coronary disease.
Area of Science:
- Cardiology
- Cardiac Surgery
- Vascular Biology
Background:
- Noncoronary collateral flow presents a potential risk during cold cardioplegia for myocardial protection.
- Understanding the distribution of noncoronary collateral flow is crucial for optimizing cardiac surgical procedures.
Purpose of the Study:
- To investigate the distribution of noncoronary collateral flow during coronary revascularization.
- To determine the relationship between noncoronary collateral flow and intercoronary collateral flow.
Main Methods:
- Observation of noncoronary collateral flow in 58 patients undergoing coronary revascularization.
- Angiographic assessment of intercoronary collateral flow.
Main Results:
- Noncoronary collateral flow was significantly distributed (p < 0.005) towards arteries exhibiting intercoronary collateral flow.
- 1.0 of 35 patients with intercoronary collateral flow showed noncoronary collateral flow, compared to 12 of 121 without.
Conclusions:
- The preponderance of coronary collateral flow in hearts with more extensive disease may complicate cardioplegic myocardial protection.
- Further research is needed to mitigate the risks associated with noncoronary collateral flow in specific patient populations.