在一些左束支阻滞的患者中,用超声心动图可观察到左室的多时相室间隔运动和典型的间隔-侧壁心尖部正移。作者观察了这两个指标与根据组织多普勒测得的左室(LV)不同步及心脏再同步化治疗后LV逆转重构的关系。研究对象为53例患有缺血性(n=26)或特发性(n=27)心肌病的患者(男性37例;年龄68±8岁),其基线QR S间期为171±30m s,LV射血分数为21%±7%,LV舒张期末容积为257±91m l。组织多普勒测定LV不同步的标准为QRS与6个LV基底节段收缩起始之间间期的标准差>20m s。 In some left bundle branch block patients, echocardiography can be observed in the left ventricular multiphase ventricular septal motion and the typical interval - the lateral apical positive shift. The authors looked at the relationship between these two indicators and LV reverse remodeling after left ventricular (LV) asynchrony and cardiac resynchronization as measured by tissue Doppler. The subjects were 53 patients with ischemic (n = 26) or idiopathic (n = 27) cardiomyopathy (37 males; age 68 ± 8 years) with a baseline QRS interval of 171 ± 30 m s, LV ejection fraction 21% ± 7%, LV end diastolic volume 257 ± 91m l. Tissue Doppler criteria for LV asynchrony were defined as a standard deviation of> 20 m s between the QRS and the onset of contraction of the 6 LV basal segments.