不同病因致左室肥厚的QT离散度

目的 对比观察各种病因引起的左室肥厚的ＱＴ离散度。方法 二维超声心动图同高血压左室最组（ＥＨ）３０例，肥厚型心肌病组（ＨＣＭ）１５例，主动脉瓣狭窄组（ＡＳ）１５例，正常组３０例。比较４组体表心电图ＱＴ离散度（ＱＴｃ）和校正的ＱＴ度苴度（ＱＴｃｄ）。结果 病理性左室肥厚三组的ＱＴｄ和ＱＴｃｄ均明显大于对照组（Ｐ〈０．０１）；ＨＣＭ组和ＡＳ组且明显增大（Ｐ〈０．９５，Ｐ〈０．０１和Ｐ〈０．０５，Ｐ〈０

QT dispersion in patients with left ventricular hypertrophy

To study dispersions of QT and QTc(QTd,QTcd) in patients with left ventricular hypertrophy caused by pathologic factors Methods QTd and QTcd were measured in 30 patients with essential hypertension(EH) associated left ventricular hypertrophy(LVH),15 patients with hypertrophic cardiomyopathy(HCM),15 patients with isolated aortic stenosis(AS),and 30 normal subjects Results QTd and QTcd are significantly greater in group EH,HCM and AS than normal group(P<0 01),HCM and AS were greater than EH(P<0 05 and P<0 01,P<0 05 and P<0 01),no significantly different between HCM and AS Conclusion QTd and QTcd may be a marker of pathologic left ventricular hypertrophy ;