与诊断为HCN4突变的左心室非紧缩相关的胎儿心
1Department of Pediatric Cardiology, Nagano Children's Hospital, Nagano, Japan.
Annals of pediatric cardiology
|December 19, 2024
概括
这项案例研究突出了一个罕见的胎儿胸在子宫内被诊断出来的病例,后来被确定为左心室非紧缩,并与HCN4基因变异有关. 对先天性心脏病和遗传性心律失常的早期查至关重要.
科学领域:
- 心脏病学 心脏病学
- 遗传学 是一个遗传学.
- 胎儿医学 胎儿医学
背景情况:
- 胎儿胸,定义为心率低于妊娠年龄的第三百分位,需要进行彻底的调查.
- 左心室非紧缩是一种罕见的先天性心肌病,临床表现不同.
- 遗传因素在遗传性心律失常综合征中起着重要作用.
研究的目的:
- 报告与左心室非紧缩和HCN4基因变异相关的胎儿心病例.
- 强调全面的胎儿心脏评估和在持续的胎儿心病的情况下进行遗传查的重要性.
- 讨论产前出现的先天性心脏病的诊断挑战和管理考虑.
主要方法:
- 胎儿心声学用于产前心脏评估.
- 产后心电图 (ECG) 和胸前心电图用于详细的心脏评估.
- 24小时的霍尔特监测以评估心率变化和节律.
- 基因组分析以确定与心脏病相关的遗传变异.
主要成果:
- 观察到胎儿鼻肌梗塞 (心率为每分钟100次) 和微妙的左心室轨道.
- 产后诊断的鼻肌梗塞和左心室非紧缩 (尖顶定位) 与正常的心脏功能.
- 遗传分析显示,HCN4基因中存在一个异合体变异 (p.
- 在24小时的霍尔特监测期间没有检测到任何显著的暂停 (>2s).
结论:
- 持续的胎儿胸可能表明潜在的先天性心脏病或遗传性心律失常综合征.
- 左心室非紧缩可以与胎儿心出现,需要进行遗传研究.
- HCN4基因变异与心律障碍有关,应考虑在无法解释的胸.
- 对于心率低于第三百分点的胎儿,建议对先天性心脏病和心肌病进行查.
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