碎裂QRS波与冠心病患者冠状动脉病变程度的关系研究

Relation between fragmented QRS and severity of coronary artery lesions in patients with coronary heart disease

目的探讨碎裂QRS(fQRS)波与冠状动脉病变程度的关系。方法入选经选择性冠状动脉造影诊断为冠心病患者93例,根据Gensini积分,分为A组(<40分)28例,B组(40～80分)35例,C组(>80分)30例,分析fQRS波与冠状动脉病变程度的关系。结果 Gensini积分越高,其心电图中fQRS波出现的导联数目越多。与A组比较,B组、C组fQRS波导联数目增多(P<0.05,P<0.01);与B组比较,C组fQRS波导联数目增多(P<0.05)。3组fQRS波出现的导联与冠状动脉病变供血区域的符合率分别为78.57%、88.57%和93.33%,差异无统计学意义(P>0.05)。结论 fQRS波的出现可作为预测冠状动脉病变程度的无创指标。

Objective To study the relation between fragmented QRS （fQRS） and severity of coro- nary artery lesions in patients with coronary heart disease （CHD）. Methods Ninety three patients with CHD diagnosed by coronary arteriography were divided into group A （n=28） ,group B （n= 35） and group C （n=30） with their Gensini score being 〈40,40-80 and 〉80,respectively. The relation between fQRS and severity of coronary artery lesions was analyzed. Results The higher the Gensini score was, the more the number of leads in the fQRS on ECG was. The number of leads in fQRS on ECG was greater in groups B and C than in group A （P〈0.05,P〈0.01） and in group C than in group B （P〈0.05）. No significant difference was observed in the number of leads in fQRS on ECG and blood supply for coronary lesion areas among the 3 groups with a coin- cidence of 78.57 %, 88.57%, and 93.33%, respectively （P〉0.05）. Conclusion The fQRS can be used as a non-invasive indication for predicating the severity of coronary artery lesions.