Effects of collateral circulation on ventricular function of patients with ST-segment-elevation ;myocardial infarction treated with primary coronary intervention / 中国介入心脏病学杂志

ABSTRACT

Objective To determine whether the presence of coronary collateral lfow, as evidenced by angiography, has a beneifcial effect on left ventricular function in ST-segment-elevation myocardial infarction (STEMI) treated by means of early percutaneous coronary intervention (PCI). Methods Between April 2012 to November 2013, 95 patients with STEMI treated with primary PCI successfully were analyzed. According to the Rentrop grade, these patients were divided into 2 groupscollateral circulation group (n=16) and non-collateral circulation group (n=79). The left ventricular function was evaluated within 24 hours after PCI and 30 days later. Results Comparison of 2 groups showed that collateral lfow was associated with better left ventricular ejection fraction within 24 hours and 30 days after PCI. And non-collateral lfwa was associated with more ventricular aneurysm formation. Conclusions The presence of angiographically detectable collaterals has a protective effect on left ventricular function in ST-segment-elevation myocardial infarction (STEMI) treated by primary PCI.