在ST升高心肌梗塞中肝组织变化:决定因素和预后影响
Ivan Lechner1, Martin Reindl1, Sebastian von der Emde1
1University Clinic of Internal Medicine III, Cardiology and Angiology (I.L., M.R., S.v.d.E., A.D., F.O., C.T., M.H., T.K., J.F., A.B., B.M., S.J.R.), Medical University of Innsbruck Innsbruck, Austria.
Circulation. Cardiovascular imaging
|November 29, 2024
概括
在ST段升高心肌梗塞 (STEMI) 患者的肝T1模式与心肌损伤和更糟糕的结果有关. 在STEMI发作后4个月持续的肝脏变化表明患有重大心血管不良事件的风险更高.
科学领域:
- 心脏病学 心脏病学
- 放射学 放射学是一门学科.
- 生物医学成像技术 生物医学成像技术
背景情况:
- 通过心磁共振成像 (CMR) 评估的ST段升高心肌梗塞 (STEMI) 患者肝脏组织变化的临床意义尚不清楚.
- 这项研究研究了肝T1模式与心肌损伤之间的关系,以及STEMI患者的临床结果.
研究的目的:
- 探索肝脏T1模式与心肌损伤以及STEMI患者的临床结果的关联.
- 为了确定CMR T1映射检测到的肝组织变化是否预测STEMI后的不良心血管事件.
主要方法:
- 来自MARINA STEMI研究的485名STEMI患者的分析,通过皮肤冠状动脉干预进行治疗.
- 在STEMI后的第一周内使用CMR评估心肌功能,心脏病发作特征和心室功能.
- 从基线和4个月后的心脏T1图表评估本源肝T1次和细胞外体积.
主要成果:
- 肝脏T1时间的中位数从基线 (559毫秒) 降低到STEMI后4个月 (542毫秒) (P<0.001).
- 基线肝T1时间与女性性别,高脂血症,心脏病发作大小,微血管阻塞和右心室 (RV) 心脏病发作有关.
- 4个月后的肝T1次与女性性别,多血管疾病,N-终端亲B型尿素,RV心脏病发作和RV末缩体积指数有关.
- 没有降低肝T1次的患者有较高的重大心血管不良事件发生率 (13%对5%;P=0.003).
- 基线和4个月的肝T1时间和4个月的肝细胞外体积与主要的不良心血管事件有关.
- 在调整后,只有4个月的肝T1倍独立预测了不良结果 (HR,2.86;P<0.001).
结论:
- 通过T1映射识别的肝组织变化与STEMI中的患者特征和心肌损伤相关.
- 这些肝脏变化可以持续到STEMI后的慢性阶段.
- 持续的肝T1变化表明临床预后较差,并增加了主要心血管不良事件的风险.
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