导电系统与心力衰竭中的双节奏:PhysioSync-HF随机临床试验
André Zimerman1,2,3,4, Alexander Dal Forno5, Luis E Rohde1,2,3,4,6
1MOVE Academic Research Organization, Hospital Moinhos de Vento, Moinhos de Vento Medical School, Porto Alegre, Brazil.
JAMA cardiology
|March 11, 2026
概括
导电系统节奏 (CSP) 在心力衰竭患者心力衰竭的结局方面低于双心脏节奏 (BiVP),心力衰竭患者心力衰竭减少排气分数和左束-分支阻塞. 这些结果并不支持CSP作为一线治疗.
科学领域:
- 心脏病学 心脏病学
- 电力生理学 电力生理学
- 心脏衰竭管理的管理
背景情况:
- 导电系统节奏 (CSP) 为心力衰竭患者提供了双心脏节奏 (BiVP) 的潜在替代方案,这些患者的喷射分数减少 (HFrEF) 和左束-分支阻塞 (LBBB).
- 在这种特定患者群体中,CSP与BiVP对心力衰竭 (HF) 结果的比较疗效仍然不完全理解.
- 研究新的节奏策略对于优化治疗和改善LBBB.患者的HFrEF患者的治疗结果至关重要.
研究的目的:
- 在被诊断为HFrEF和LBBB的患者中,比较CSP对BiVP的有效性.
- 评估CSP与BiVP对关键心力衰竭相关临床结果的影响.
- 为了确定CSP与BiVP相比在这个队列中对HF管理的非劣势.
主要方法:
- 进行了一项多中心,非劣势随机临床试验 (PhysioSync-HF).
- 成年患者有症状的HFrEF (NYHA类II-III),LVEF≤35%,和LBBB (QRS≥130毫秒) 被随机分为1:1接受CSP或BiVP.
- 主要结局是死亡,HF住院,紧急HF访问和12个月LVEF变化的复合.
主要成果:
- 在初级复合终点 (OR,2.36;P=.002) 中,CSP未能证明非劣质性,并且被发现低于BiVP.
- 死亡,HF住院或紧急HF访问的复合发生在CSP (HR,2.35) 时更频繁.
- 虽然这两种节奏方法都改善了LVEF,QRS持续时间和生活质量指标,但BiVP显示LVEF在统计学上显著增加.
- 与BiVP相比,CSP与较低的直接医疗成本有关.
结论:
- 在患有HFrEF和LBBB的患者中,CSP在12个月内主要HF事件和LVEF变化的组合方面低于BiVP.
- 研究结果不支持常规使用CSP作为这个患者组的初始重同步策略.
- 可能需要进一步的研究来确定可能从CSP中受益的特定子组或改进CSP技术.
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