探索心肌纤维化在结构正常的心脏患者的性别差异
Jan Mazur1, Katarzyna E Gil2, Katarzyna Mikrut3
1University of Cincinnati College of Medicine, Cincinnati, OH, USA.
Scientific reports
|November 10, 2025
概括
在心脏正常的患者中,男性在CMR扫描上显示出更多的非血性心肌纤维化,而女性则具有更高的细胞外体积分数 (ECV). 较高的ECV可以预测两性死亡率.
科学领域:
- 心脏病学 心脏病学
- 放射学 放射学是一门学科.
- 病理生理学 病理生理学
背景情况:
- 心肌纤维化是心血管疾病的关键,已知性别特异性差异.
- 心血管磁共振 (CMR) 对于评估心肌纤维化至关重要.
研究的目的:
- 为了研究心肌纤维化在心脏结构正常的患者的性别相关差异.
- 评估纤维化模式与临床结果的关联.
主要方法:
- 对525名接受1.5TCMR的患者进行了回顾性分析,心脏功能保持良好,没有结构异常.
- 标准化CMR协议包括cine,T1映射和晚期加多增强 (LGE) 成像.
- 根据性别分层的LGE存在,程度,模式和细胞外体积分数 (ECV) 的评估.
主要成果:
- 非缺血性LGE在男性中更常见 (61.3%与43.8%,p<0.001),在多变量分析中仍然显著 (OR2.2,p=0.015).
- 女性表现出更高的ECV值 (26.5%±4.3%与23.2%±3.7%,p<0.001),在多变量分析中仍然存在显著的性别差异 (β=1.29,p=0.02).
- 在初级结局 (死亡率,心力衰竭) 和非缺血性LGE之间没有发现关联;然而,趋势表明ECV增加可能与全因死亡率有关.
结论:
- 在心脏结构正常的患者中,男性更频繁地被诊断出非血清性LGE,而女性则呈现出更高的ECV.
- 升高的ECV可以作为两性全因死亡率的潜在预测因素.
- 这些发现突出了使用CMR评估心肌纤维化的重要性别特异性差异.
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