间歇性纤维化和心律不整的中枢脱落:揭开基于性别的差异
medRxiv : the preprint server for health sciences
|January 23, 2024
概括
通过心脏MRI检测到的间歇性纤维化与心室心律不整有关,这与米特拉脱落 (MVP) 的心室心律不整有关. 这种关联在女性中更强烈,这可能解释了MVP女性中严重心律失常的更高率.
科学领域:
- 心脏病学 心脏病学
- 医疗成像医学成像
- 病理学 病理学 病理学
背景情况:
- 密特拉脱落 (MVP) 与心律失常有关,特别是在女性中.
- 之前对MVP间歇性纤维化的研究主要集中在显著的额头肌反或额头肌环状断裂的病例上.
- 目前的研究调查了在更广泛的MVP人群中间歇性纤维化和复杂的心室外皮 (ComVE).
研究的目的:
- 评估MVP患者间歇性纤维化和ComVE之间的关联.
- 调查性别在纤维化和ComVE之间的关系中的作用.
- 评估MVP患者的纤维化,这些患者没有被选为严重的额头肌吐或额头肌环状断裂.
主要方法:
- 用T1绘制的心脏磁共振 (CMR) 来量化间歇性纤维化 (细胞外体积分数,ECV%).
- 晚期加多增强 (LGE) 评估了替代纤维化.
- 门诊心电图监测检测到复杂的心室外皮 (ComVE).
主要成果:
- 在MVP患者中,与没有ComVE患者相比,观察到更高的全球ECV% (31%对27%,p=0.002).
- 在女性中,ComVE和ECV%之间的关联是显著的,但在男性中没有.
- 经过调整后,ECV%独立预测了ComVE风险,包括心室高心率/心肌.
结论:
- 心脏MRI量化间歇性纤维化与MVP患者没有显著的额头骨吐的ComVE风险增加有关.
- 这些发现表明,主要的神经病变过程有助于MVP中的心律失常.
- 在女性中较强的关联可能解释了MVP的女性中严重心律失常并发症的更高患病率.
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