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扩张型心肌病患者P-R、QRS间期的变化及其意义

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摘要 目的:观察窦性心律的扩张型心肌病(DCM)患者的心电图P-R间期、QRS波时限变化及其临床意义。方法:根据普通标准12导心电图选择窦性心律的DCM住院患者(DCM组)30例,符介Framingham心力衰竭诊断标准(NYHA心功能分级Ⅱ-Ⅳ级);健康体检者18例(对照组)。两组均进行心电图、超声心动图检查及摄心脏正位片,比较两组心电图P波时限、P-R间期、QRS波时限;超声心动图左房、左室舒张末内径(LAED、LVED)、左室射血分数(LVEF)和二尖瓣反流程度(MR),X线心胸比例。结果:与对照组相比DCM组P-R间期(P<0.05)、QRS波间期(P<0.01)、LAED、LVED和LVEF(均p<0.01)及x线心胸比(P<0.01)明显不同,DCM患者中P-R间期或/和QRS波时限延长者具有更严重的MR和更低的LVEF(P<0.05)。结论:扩张型心肌病患者P-R间期延长或/和QRS波时限延长与LVEF、MR密切相关,可能是导致心功能进一步下降的原因之一。
出处 《心血管康复医学杂志》 CAS 2004年第4期361-363,共3页 Chinese Journal of Cardiovascular Rehabilitation Medicine
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参考文献5

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