对心脏结构和功能的心脏衰竭与保存的喷射小部分的心脏关装置的影响:减少LAP-HFII随机临床试验
Ravi B Patel1, Frank E Silvestry2, Jan Komtebedde3
1Bluhm Cardiovascular Institute, Division of Cardiology, Department of Medicine, Northwestern University Feinberg School of Medicine, Chicago, Illinois.
JAMA cardiology
|April 17, 2024
概括
在心力衰竭中,与保存的喷射分数的心房分流疗法在响应者中显示出潜力. REDUCE LAP-HF II试验发现,在特定的患者群体中,分路疗法改善了心脏结构和功能.
科学领域:
- 心脏病学 心脏病学
- 医疗器械 医疗器械
- 临床试验 临床试验
背景情况:
- 保持喷射分数 (HFpEF) 的心力衰竭在治疗中存在挑战.
- 房转移是一种新兴的治疗方法,用于降低左心房压力升高.
- 在REDUCE LAP-HF II试验中,研究了一种用于HFpEF/HFmrEF的心房分流装置.
研究的目的:
- 为了评估心脏结构和功能的功效,心房分流与虚假控制对比.
- 为了分析这些效应,根据患者的应答状态进行分层分析.
主要方法:
- 一个模拟控制的随机临床试验,涉及621名HFpEF/HFmrEF患者.
- 利用心声回声学来评估多个时间点的心脏测量,长达24个月.
- 后期分析侧重于应答者状态 (没有潜在的肺血管疾病,没有CRM设备).
主要成果:
- 总的来说,心房分流减少了左心室和左心房的体积,并改善了LV系统功能.
- 避路疗法增加了右心室和右心房体积,但没有影响RV缩功能或压力.
- 与非响应者相比,响应者表现出更有利的心脏结构和功能变化.
结论:
- 心房转移导致心脏左侧腔室的逆转改造和右侧腔室的体积变化.
- 治疗的益处在已识别的响应者中更为明显,支持响应者假设.
- 进一步的长期评估是必要的,以充分理解心房转移的影响.
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