扩张型心肌病Q-T离散度的探讨

Investigation on Q-T dispersion in patients with dilat-ed cardiomyopathy

为了解扩张型心肌病的Q-T离散度,测量69例扩张型心肌病12导联心电图并与正常组作对照。结果显示:扩张型心肌病组的Q-T_d和Q-T_(cd)与对照组差异均有非常显著意义(76±29对32±14,92±38对36±16,P均<0.01)。认为Q-T_d和Q—T_(cd)明显延长反映扩张型心肌病患者心电不稳定性,有助于预测心脏事件的发生。

In order to investigate Q-T dispersion in patients with DCM, Q-Td and Q-TCd were measured through 12-lead ECG in 69 DCM cases, and were compared with those of normal control subjects. Results showed that they were significantly higher in DCM patients than those in controls (76±29 vs. 32±14, 92*38 vs. 36±16, P all < 0. 01 ). That prolongation of Q-Td and Q-Tcd was considered to show cardio electric unstability in patients with DCM, which might be helpful in predicting cardiac events.