胸导联R波递增不良的临床意义

目的探讨胸导联R波递增不良的临床意义。方法对92例胸导联R波递增不良患者的心电图表现作临床回顾性分析。结果92例中69例（A组）明确有器质性疾病，23例（B组）无明显器质性疾病。A组胸导联符合R／S比例自右至左逐渐增高者5例（7．2％）低于B组20例（87．0％），差异有非常显著性意义（P〈0．01）。Rv1～Rv3均小于0．3mV者，A组（61例，88．4％）高于B组（2例，8．7％），差异也有非常显著性意义（P〈0．01）。结论胸导联R波递增不良可由多种器质性胸心疾病或生理性改变等原因引起，要密切结合临床加以判断。

Clinical significance of poor R wave progression in precordial leads

Objective To estimate clinical significance of poor R wave progression in precordial leads. Methods 92 cases with poor R wave progression in precordial leads were classified into group A(69 cases) with organic disease and group B(23 cases) without organic disease and their electrocardiograms were analyzed retrospectively. Results Number of patients with R / S ratio increasing gradually from right to left precordial leads was significantly less in group A than that in group B (7.2% vs. 87.0%) (P<0.01). Amplitude of every R wave in lead V1 to lead V3 was lower than 0.3mV in 61 cases (88.4%) of group A and in two cases (8.7%) of group B. There was significant difference between two groups(P<0.01). Conclusion Poor R wave progression could result from many organic thoracic and cardiac diseases and physiological changes and should be estimated with clinical findings.