急性前壁心肌梗死心电图ΣR、ΣQ、ΣST演变特点

目的　探讨急性前壁心肌梗死Q波、R波及ST段演变规律。方法　采用单极胸导联心电图在胸部进行体表标测 ,分别计算∑R、∑Q、∑ST。结果　∑R在胸痛发作后 12h内下降速度最快 ,12h后下降速度较慢 ,两者比较差异有非常显著性 (P <0 .0 1) ;∑Q在 2 4h内与 2 4h后形成对比差异有非常显著性 (P <0 .0 1) ;∑ST在 2 4h内下降速度比 2 4h后下降速度显著增快 ,两者比较差异有显著性 (P <0 .0 5 )。结论　观察心肌梗死急性期心电图∑R、∑Q、∑ST演变规律 ,以便采取急救措施 ,及时挽救濒死心肌。

Electrocardiographic developmental regularity of acute anterior myocardial infarction

Objective　To investigate the developmental regularity of Q wave,R wave and ST segment of acute anterior myocardial infarction.Methods　The assignment test of body surface was made in the chest with monopolar chest lead electrocardiogram,and ∑Q，∑R and ∑ST were calculated respectively.Results　The ∑R descending speed in 12 hours after a chest pain attack was the fastest,and after 12 hours it was slower,there was a significant difference (P<0.01) between them.∑Q had a significant difference(P<0.01) between in and after 24 hours.The ∑ST descending speed in 24 hours was much faster than that after 24 hours (P<0.05).Conclusion　In acute stage of myocardial farction, the first aid treatment could be carried out and the agonal cardiac muscle could be saved in time by observing electrocardiographic ∑Q,∑R and ∑ST developmental regularity.