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测定３４例Ⅰ期高血压病（ＥＨ）、４６例高血压左心室肥厚（ＬＶＨ）患者的ＱＴ间期离散度（ＱＴｄ）的变化，并与３０例健康人对比。结果：健康对照组ＱＴｄ为（２４±１９）ｍｓ，Ⅰ期ＥＨ组ＱＴｄ为（３５±１７）ｍｓ，两者差异有显著性（Ｐ＜０．０５），ＥＨ合并ＬＶＨ组ＱＴｄ为（７６±２４）ｍｓ，与对照组和Ⅰ期ＥＨ组的差异均有显著性（Ｐ均＜０．０５）。提示：合并ＬＶＨ的ＥＨ患者心肌细胞存在严重复极不一致；Ⅰ期ＥＨ者仍有发生室性心律失常的相对危险性。
The changes of QTd in 34 patients with stage I hypertension (EH) and 46 patients with hypertensive left ventricular hypertrophy (LVH) were measured and compared with 30 healthy controls. Results: The QTd of healthy control group was (24 ± 19) ms, the QTd of stage Ⅰ EH group was (35 ± 17) ms, the difference was significant (P <0.05) 24) ms, there were significant differences between the control group and the stage Ⅰ EH group (all P <0.05). Hint: EH patients with LVH have severe repolarization of cardiomyocytes inconsistent; stage I EH still have the relative risk of occurrence of ventricular arrhythmia.