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在无心脏起器系统中,基于温度的速率响应
Mayer Y Rashtian1, James E Ip2, Derek V Exner3
1Huntington Memorial Hospital, Pasadena, California.
Heart rhythm
|November 24, 2024
概括
双室无心脏起器系统有效地使用基于温度的传感器来调整运动期间的节奏率. 这种响应速度的节奏与心室和心房器件的代谢需求准确匹配.
科学领域:
- 心脏病学 心脏病学
- 生物医学工程 生物医学工程
- 医疗器械 医疗器械
背景情况:
- 一种新的双室无心脏起器 (DR-LP) 系统使用基于温度的速度响应传感器.
- 对于心室 (VR-LP) 和心房 (AR-LP) 设备的运动过程中速率响应的有效性需要评估.
研究的目的:
- 为了确定基于温度的速度响应节奏是否与无心脏起器系统中的代谢工作负载成正比.
- 评估速度调节的有效性,以应对运动诱导的代谢需求.
主要方法:
- 在LEADLESS II-Phase 2和Aveir DR i2i研究中给参与者使用的跑步机炼方案.
- 通过使用编程设置优化后步行测试,评估了心室和心房速率-响应传感器.
- 传感器指定的速度与代谢工作负载的综合规范化斜率;接受范围定义为95%的IC在0.65和1.35之间.
主要成果:
- 平均心室速率-反应斜率为0.93 (CI,0.78-1.08),符合接受标准 (P = .001).
- 平均心房速率-响应斜率为0.91 (CI,0.78-1.05),也符合接受标准 (P < .001).
结论:
- 基于温度的传感器在DR-LP系统有效调节节奏率与增加的代谢需求.
- 对于心室和心房无节奏器件,节奏率和代谢工作负载之间的比例已被证明.
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