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QT离散度与肥厚型心肌病左室重量和室性心律失常关系的研究 被引量:1

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摘要 目的 :分析QT离散度 (QTd)和肥厚型心肌病患者左室肥厚程度和室性心律失常的关系。方法 :原发性肥厚型心肌病 2 5例 ,正常对照组 2 4例。应用二维超声心动图测量计算左室重量 (LVM ) ,记录 2 4小时动态心电图和同步 1 2导联心电图各导联间的QT间期计算QTd、QTcd ,比较QTd、QTcd与左室重量和室性心律失常的关系。结果 :①肥厚型心肌病组LVM、QTd、QTcd明显大于正常对照组 (分别为 30 5 .2± 94.1 g与 1 50 .6± 32 .8g ;80 .2± 1 6 .5ms与 35 .6± 7.6ms ;86 .4±1 7.5ms与 40 .7± 9.1ms,P均 <0 .0 1 ) ;②严重室性心律失常患者LVM、QTd、QTcd明显高于无严重室性心律失常患者 (分别为 375 .4± 91 .6g与 2 72 .2± 77.3g ;93 .8± 1 5 .8ms与 73 .8± 1 2 .8ms,P均 <0 .0 1 ,98.1± 1 7.7ms与 80 .8± 1 4 .9ms,P <0 .0 5) ;③肥厚型心肌病患者LVM与QTd、QTcd显著相关 ,r分别为 0 .72 4 7和 0 .6450。结论 :肥厚的心肌细胞排列紊乱是导致QTd、QTcd增大的主要原因 ,可作为反映心肌复极弥散程度的指标 ,QTd。
出处 《交通医学》 2000年第3期258-259,共2页 Medical Journal of Communications
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参考文献6

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同被引文献10

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