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自 Morris 根据瓣膜病的研究,提出PTFv_1≤-0.04毫米秒作为左房肥大的指标以来,己近16年之久。嗣后,Grossman等在冠心病的研究中,发现 PTFv_1负值增大,对判断左室功能有一定意义。并以PTFv_1≤-0.04毫米秒作为异常界限。近年来就 PTFv_1负值增大在冠心病诊断中的意义和价值国内也屡有报导,有的认为其敏感性不亚于二级梯双倍运动试验;有者提出对冠心病诊断的敏感性是低的,而特异性是高的……,至于 PTFv_1负值异常的标准,目前也尚无定论。我们筛选了临床诊断明确的心电图
Since Morris’s study of valvular disease, it has been proposed that PTFv_1 ≦ -0.04 mmsec has been used as an indicator of left atrium hypertrophy for nearly 16 years. Subsequently, Grossman et al in the study of coronary heart disease found that negative PTFv_1 increased, to determine the significance of left ventricular function. And PTFv_1≤-0.04 mm sec as the abnormal boundary. In recent years, the negative value of PTFv_1 in the diagnosis of coronary heart disease, the significance and value of the domestic have also been repeatedly reported, and some think their sensitivity as much as the double ladder double exercise test; Someone proposed diagnostic sensitivity to coronary heart disease Is low and the specificity is high ... As for the criteria for the negative value of PTFv_1, there is no conclusive result yet. We screened a clear ECG for clinical diagnosis