对再同步治疗的临床反应:导电系统节奏与双节奏. 在 CONSYST-CRT 试验中
Margarida Pujol-López1, Freddy R Graterol1, Roger Borràs2
1Institut Clínic Cardiovascular (ICCV), Hospital Clínic, Universitat de Barcelona, Catalonia, Spain; Institut d'Investigacions Biomèdiques August Pi i Sunyer (IDIBAPS), Barcelona, Catalonia, Spain.
JACC. Clinical electrophysiology
|May 15, 2025
概括
导电系统节奏 (CSP) 证明在心脏再同步治疗中与双心室节奏 (BiVP) 不逊色,表现出类似的临床和心声回应. 这表明CSP是患有缩功能障碍和广泛QRS的患者的可行替代方案.
科学领域:
- 心脏病学 心脏病学
- 电力生理学 电力生理学
- 医疗器械 医疗器械
背景情况:
- 随机试验比较传导系统节奏 (CSP) 与双心室节奏 (BiVP) 是有限的,特别是在临床结果方面.
- 需要评估心脏再同步治疗 (CRT) 的替代节奏策略.
研究的目的:
- 评估CSP与BiVP相比的非劣质性,用于CRT的患者.
- 在CONSYST-CRT试验中,在1年的随访期评估临床和心声学终点.
主要方法:
- 一个随机的,受控的,非劣势性试验 (CONSYST-CRT) 涉及134名具有CRT指示的患者.
- 患者被随机分配到BiVP或CSP,并优化心房间间隔以实现内在导电融合.
- 主要终点包括死亡率,移植,心力衰竭住院,或LVEF改善<5点;次要终点关注LVEF,LVESV,QRS持续时间和功能类.
主要成果:
- 在初级综合终点 (23.9% vs 29.8%) 和关键二级终点 (包括死亡率/移植/住院 (11.9% vs 17.9%),心声回应 (66.6% vs 59.7%),NYHA类和QRS缩短) 中,CSP显示与BiVP无劣势.
- 虽然LVEF,LVESV和隔膜闪光值相似,但对于这些特定的心声回声测量措施,不低劣性没有达到.
- 观察到一个显著的交叉率,从CSP到BiVP的交叉率为26.9%,从BiVP到CSP的交叉率为7.5%.
结论:
- 在需要CRT的患者中,导电系统节奏 (CSP) 在实现联合临床和心声回应方面与双心脏节奏 (BiVP) 无差.
- 在选定的患者群体中,CSP为BiVP提供了一个潜在的替代步调策略.
- 进一步的研究可能会探索长期的结果和最佳的患者选择CSP.
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