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本文报告了心前标测241导联心电图记录的方法,并应用本方法对140例静息心电图正常(41例)及双倍二级梯运动试验阴性或可疑阳性(99例)的患者进行极量或亚极量平板运动试验,并将其结果与单个V5导联、常规记录导联(V_3、V_4、V_5、V_6、Ⅰ、Ⅱ、aVF或aVL)及Fox16心前标测导联进行比较。发现心前标测24导联记录方法其平板运动试验阳性病例数(28例)明显离于单个V_5导联(11例),Fox 16心前标测导联(18例)及常规记录导联(20例)。本方法不仅能提高平板运动试验的敏感性,而且能揭示心肌缺血的范围。
In this paper, we report the method of precordial mapping of lead 241 electrocardiogram, and apply this method to the study of 140 patients with normal resting electrocardiogram (n = 41) and double second-step treadmill test negative or suspicious (n = 99) Volume or submaximal treadmill exercise test and compare the results with a single V5 lead, a conventional recording lead (V_3, V_4, V_5, V_6, I, II, aVF or aVL) and a Fox16 precordial lead . It was found that the number of positive cases of treadmill exercise test (28 cases) was significantly different from that of single V5 lead (11 cases), Fox 16 precordial lead (18 cases) and conventional recording lead (20 cases). This method can not only increase the sensitivity of treadmill exercise test, but also reveal the scope of myocardial ischemia.