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目的观察踝臂指数对不稳定型心绞痛患者预后的预测价值。方法选取79例不稳定型心绞痛患者和37例正常对照组,观察ABI与心肌梗死事件的关系。结果ABI与UA严重程度成负相关,ABI越低,UA严重程度越高。正常组、低危组、中危组、高危组之间比较,有统计学意义(P<0.05)。ABI的曲线下面积为0.722,95%CI为0.602-0.841。结论ABI是预测UA发生心肌梗死一个比较有效的指标。
Objective To observe the prognostic value of ankle brachial index in patients with unstable angina pectoris. Methods 79 patients with unstable angina and 37 normal controls were selected to observe the relationship between ABI and myocardial infarction. Results The ABI was negatively correlated with the severity of UA. The lower the ABI, the higher the severity of UA. There was a significant difference between normal group, low risk group, intermediate risk group and high risk group (P <0.05). The area under the curve for ABI was 0.722 and the 95% CI was 0.602-0.841. Conclusion ABI is a more effective predictor of myocardial infarction in UA.