超声心动图在检测心肌同步运动方面的应用

来源 :中国医学影像学杂志 | 被引量 : 0次 | 上传用户:aqgcsw1
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充血性心力衰竭常为器质性心脏病的终末阶段,多存在一定程度的心房内、房室间、心室间/心室内传导障碍和电-机械运动不同步.心肌同步化治疗使起搏的适应证不再局限于传统的缓慢性心律失常和传导系统疾病的狭小范围.心肌同步化治疗效应包括:降低心室充盈压、改善舒张期充盈和心排出量、增加迷走神经的作用、减少QT离散度、逆转左心室重构[1,2].对于大部分患者上述作用通过6min步行试验,纽约心脏协会(NYHA)心功能分级及生存质量的改善得以体现[3,4].本文简要介绍了超声心动图在心肌同步化治疗中的应用现状及进展.
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