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相关概念视频

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晚期加多增强心血管磁共振系统右心室的成年人之前心房重定向手术转移大动脉的转移.

Sonya V Babu-Narayan1, Omer Goktekin, James C Moon

  • 1Adult Congenital Heart Unit, Royal Brompton Hospital, London, UK.

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|April 27, 2005
PubMed
概括

晚期加多增强 (LGE) 在心血管磁共振 (CMR) 上表明心肌纤维化在心房重定向手术后患者的系统右心室 (RV). 这种纤维化与不良的临床特征和心室功能障碍相关.

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科学领域:

  • 心血管成像 - 心血管成像
  • 心脏外科手术 心脏外科手术
  • 心脏病学 心脏病学

背景情况:

  • 接受大动脉转移心房重定向手术的患者会发展出全身右心室 (RV).
  • 长期对RV的全身压力可能导致功能障碍,可能是由于心肌纤维化.
  • 晚期加多增强 (LGE) 心血管磁共振 (CMR) 可以可视化心肌纤维化.

研究的目的:

  • 为了调查LGE在心房重定向手术后患者的全身RV中的存在.
  • 确定LGE是否与不良的临床特征和RV功能障碍有关.

主要方法:

  • 心血管磁共振 (CMR) 成像对36名心房转向手术后的成年患者进行了成像.
  • 晚期加多增强 (LGE) 在右心室 (RV) 中进行了评估.
  • 分析了临床数据,包括心室体积,喷射率,QRS持续时间,QT分散和不良事件.

主要成果:

  • 晚期加多增强 (LGE) 在61%的系统右心室 (RV) 患者中观察到.
  • 患有RV LGE的患者显示年龄增加,RV末缩体积指数,QRS持续时间和QT分散,以及RV射出分数减少.
  • LGE的程度与年龄相关,QRS持续时间,与RV喷射分数相反. 在LGE阳性组中,心律失常和/或昏迷的发生率更高.

结论:

  • 晚期加多增强 (LGE) CMR,表明心肌纤维化,在心房重定向手术后,在全身右心室 (RV) 中普遍存在.
  • LGE的程度与心室功能障碍,电生理学异常和临床事件有关.
  • 这些发现表明,LGE在这个患者群体中具有预后意义,需要进一步研究.