在非缺血性扩张性心肌病中,晚期加多增强分布模式:基因型-表型相关性
Fernando de Frutos1,2,3, Juan Pablo Ochoa1,3,4, Ana Isabel Fernández2,5,6,7
1Heart Failure and Inherited Cardiac Diseases Unit, Department of Cardiology, Hospital Universitario Puerta de Hierro, Manuel de Falla, 2, Majadahonda, Madrid, 28222, Spain.
European heart journal. Cardiovascular Imaging
|August 10, 2023
概括
扩张性心肌病 (DCM) 的晚期加多增强 (LGE) 模式因遗传原因而异. 特定的LGE模式与主要心室失常症 (MVA) 的风险增加和更高的遗传检测收益率相关.
科学领域:
- 心脏病学 心脏病学
- 遗传学 是一个遗传学.
- 医疗成像医学成像
背景情况:
- 晚期加多增强 (LGE) 在扩张性心肌病 (DCM) 中很常见.
- 基于遗传原因的LGE频率和分布的信息有限.
- 了解基因型特定的LGE模式对于风险分层至关重要.
研究的目的:
- 根据其潜在的遗传基质,对DCM患者的LGE模式进行表征.
- 调查LGE模式与主要心室节律失常 (MVA) 风险之间的联系.
- 探索LGE模式与遗传检测产出之间的关系.
主要方法:
- 分析了一组577名DCM患者的队列,这些患者发现了基因变异.
- 用心磁共振成像 (CMR) 来评估LGE分布.
- 进行了统计分析来比较不同基因型的LGE模式,并与MVA风险相关联.
主要成果:
- 在38%的患者中发现了致病性遗传变异;25.5%显示LGE.
- 在各种基因中观察到LGE模式的显著差异 (P < 0.001).
- 特定的基因型与明显的LGE分布有关 (例如,在DMD,DSP,FLNC中心脏下部分布).
- 像心下,中壁,外壁和右心室插入点这样的LGE模式与增加MVA风险有关.
结论:
- 在DCM中的LGE模式表现出基因特异分布.
- 某些LGE模式预示着MVA风险的增加.
- 在DCM中,LGE模式可以提高基因检测的诊断产量.
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