降低右/左心室血池T2比率预测STEMI后的充血性心力衰竭
Felix Troger1, Mathias Pamminger1, Christina Tiller2
1University Clinic of Radiology, Medical University of Innsbruck, Anichstrasse 35, 6020, Innsbruck, Austria.
概括
通过心磁共振成像 (CMR) 测量下右心室/左心室 (RV/LV) T2比率,预测ST段升高心肌梗塞 (STEMI) 后新的充血性心力衰竭 (CHF). 这一比率是STEMI后CHF发展的有价值的预后工具.
科学领域:
- 心血管成像 - 心血管成像
- 生物标志物 生物标志物
- 心脏衰竭研究研究
背景情况:
- 在心磁共振成像 (CMR) 中的T2映射评估血液氧化.
- RV/LV T2-放松时间差异与心力衰竭中的运动能力相关.
- 对于充血性心力衰竭 (CHF) 的STEMI后RV/LV T2比率的预后值尚不清楚.
研究的目的:
- 研究RV/LV T2比率对预测ST段升高心肌梗塞 (STEMI) 后新发性心脏不全症的预后意义.
主要方法:
- 第一次STEMI的664名患者在重血管化后4天内接受了CMR.
- 在血液池中使用T2地图测量RV/LV T2放松时间;计算RV/LV T2比率.
- 随访患者的中位数为3.0年,以确定新的CHF诊断.
主要成果:
- 观察到的RV/LV T2比率中位数为73%,比率<60%与显著更高的发病率和更早发病的CHF有关.
- 降低T2比率 (<60%) 的患者年龄较大,患有较大的心脏病发作,较高的NT-proBNP,较低的射出分数和更多的微血管损伤.
- RV/LV T2比率<60%独立预测的CHF后STEMI和增加到NT-proBNP时改善的风险预测.
结论:
- 从CMR获得的RV/LV T2比率是一种简单而有效的工具,用于评估STEMI后的CHF预后.
- 这种成像生物标志物为从STEMI中康复的患者提供了有价值的预后信息.
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