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本组男37例,女13例;年龄35～52岁,病史2天至10年。经检查,均无器质性心脏病。记录阵发性室上速(PSVT)发作时和恢复窦性心律后的12导联心电图。心电图记录纸速25mm/S,标准电压10mm/mv,以j点(QRS波和ST段的交接点)之后80ms处为ST段下移的测定位置,TP段为基线。50例PSVT时ST段下移数值分别为5mv7例,4mv15例,3mv13例,2mv10例,1mv5例;水平型下移5例,下斜型7例,上斜型38例,至少有3个导联下移≥1mv,多出现在Ⅱ、Ⅲ、avF和V_4
The group of 37 males and 13 females; aged 35 to 52 years old, history of 2 days to 10 years. After examination, no organic heart disease. The 12-lead electrocardiogram was recorded at the onset of paroxysmal supraventricular tachycardia (PSVT) and after the sinus rhythm was restored. Electrocardiogram recorded paper speed 25mm / S, the standard voltage of 10mm / mv to j point (QRS wave and the intersection of ST segment) after 80ms at the ST segment down the measurement position, TP segment as the baseline. In 50 cases of PSVT, the values of ST segment depression were 7 cases of 5mv, 15 cases of 4mv, 13 cases of 3mv, 10 cases of 2mv and 5 cases of 1mv respectively. There were 5 cases of horizontal type down, 7 cases of down-type and 38 cases of upward type, at least 3 cases Associated shift ≥ 1mv, mostly in Ⅱ, Ⅲ, avF and V_4