对比左捆分支面积与右心室隔膜节奏在高度传导疾病中,经过透气管大动脉置换后:随机试验研究协议
Steven Liskov1,2, Farah Olleik3, Harish Jarrett2,3
1Section of Cardiac Electrophysiology, Division of Cardiology, Johns Hopkins Hospital, Baltimore, Maryland, USA.
CJC open
|November 11, 2024
概括
与右心室隔膜节拍 (RVSP) 相比,左束支部区域节拍 (LBBAP) 可能在跨导管大动脉置换 (TAVR) 后更好地保护左心室缩功能. 这项随机交叉研究旨在证实LBBAP在预防心脏功能下降方面的优越性.
科学领域:
- 心脏病学 心脏病学
- 电力生理学 电力生理学
- 心脏节拍是因为心脏节拍.
背景情况:
- 左捆分支区域节奏 (LBBAP) 提供了生理内心室同步.
- 它的优越性超过右心室隔膜节奏 (RVSP) 在保存左心室 (LV) 缩功能后透气管大动脉置换 (TAVR) 未被证明.
- 接受TAVR治疗的患者可能会患上需要节奏的导电疾病.
研究的目的:
- 调查LBBAP在TAVR后维护LV缩功能方面是否优于RVSP.
- 为了比较LBBAP和RVSP对该患者群体心脏同步和功能的影响.
主要方法:
- 这是一项多中心,前性,双盲,随机交叉研究 (Left Bundle BRAVE).
- 招募了患有严重大动脉狭窄,正常的LV缩功能和TAVR后高度心房阻塞的成年人.
- 参与者被随机分配到9个月的RVSP,然后9个月的LBBAP,或者反之亦然,使用双心室起器.
主要成果:
- 主要终点:全球纵向应变的变化,次要终点:LV喷射分数.
- 评估了同步和RV性能的回声心脏学标记.
- 评估功能状态,6分钟步行测试和像BNP这样的生物标志物.
结论:
- 这项研究旨在确定LBBAP作为一种优越的节奏策略,以防止TAVR后的LV功能恶化.
- 结果将为临床实践提供有关传导疾病的TAVR患者最佳节奏的信息.
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