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为了进一步了解信号叠加心电图(SAECG)在临床上的应用价值,本文研究了SAECG和心室晚电位(LP)与70例室性心律失常(VA)的关系。结果提示:非器质性心脏病伴VA组的SAECG三项参数与正常对照组比较无明显差异,且无LP出现;器质性心脏病伴VA组与正常对照组比较有显著差异,Total QRS、Under40μV的时限明显延长,Last40ms的电压明显减低(P<0.001),而且器质性心脏病人中室速组LP的出现率较频发室早组高(P<0.05)。
In order to further understand the clinical value of SAECG, we studied the relationship between SAECG and ventricular late potentials (LP) and 70 patients with ventricular arrhythmia (VA). The results suggest that there are no significant differences in SAECG parameters between VA group and non-structural heart disease group, and no LP appears. Compared with normal control group, there is a significant difference between SA group and VA group. Total QRS (P <0.001). The incidence of LP in ventricular tachycardia was significantly higher in patients with organic heart disease than in those with frequent ventricular dysfunction (P <0.05).