Well-developed coronarycollaterals reduce the size of myocardial infarction, preserve left ventricular function and viability, and reduce the risk of death.
发达的冠状动脉侧支循环减少心肌梗死面积，保护左室功能和活力，降低死亡风险。
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Objective To investigate the relationship between serum level of homocysteine and the development of collaterals in non-diabetic patients with severe coronary artery stenosis.