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男患,68岁,近年来常有反复发作性心悸、头昏,稍活动后上述症状加重,临床拟诊为冠心病。本文下图(V_1导联)是该患者于1986年6月14日测得,图中可见窦性P波,P-P间期为0.62秒,P-R间期0.14秒,QRS为室上性,约合窦性心率97次/分,阵发性P波消失代之以较规则的F波,呈不等比下传至心室,R_3宽大畸形呈R型,稍后又
Male suffering, 68 years old, in recent years often recurrent palpitations, dizziness, a slight activity after the above symptoms, clinically diagnosed as coronary heart disease. The following figure (V_1 lead) measured in this patient on June 14, 1986 shows a sinus P wave with a PP interval of 0.62 seconds, a PR interval of 0.14 seconds, and a QRS of supraventricular. Sinusoidal heart rate 97 beats / min, paroxysmal P wave disappeared replaced by a more regular F wave, was disproportionately lower to the ventricle, R_3 large deformity was R type, and later