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目的探讨平板运动试验(TET)预测慢性冠状动脉闭塞性病变(CTO)患者介入治疗的价值。方法选择冠状动脉造影确诊单支血管CTO病变患者247例,于介入治疗前行TET检查,PCI后一年随访心绞痛分级、心功能分级、超声心动图(包括左室射血分数和左室舒张末期直径)的变化,及主要不良心血管事件。结果临床随访一年,A组与B组,B组与C组在心绞痛分级、心功能分级、左室射血分数、左室舒张末期直径比较差异有统计学意义(P<0.05)。结论 TET能有效评价CTO患者PCI疗效。
Objective To investigate the value of treadmill exercise test (TET) in predicting interventional therapy in patients with chronic coronary artery occlusive disease (CTO). Methods Totally 247 patients with CTO lesions of coronary artery were diagnosed by coronary angiography. TET was performed before interventional therapy. Angina grade, cardiac function classification, echocardiography (including left ventricular ejection fraction and left ventricular end-diastolic pressure Diameter) changes, and major adverse cardiovascular events. Results One year after clinical follow-up, there was significant difference in angina grade, cardiac function classification, left ventricular ejection fraction and left ventricular end-diastolic diameter between group A and group B, group B and group C (P <0.05). Conclusion TET can effectively evaluate the efficacy of PCI in patients with CTO.