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心脏移植后的慢性无能症与增加的死亡率和功能能力下降有关
Robert S Zhang1, Thomas C Hanff2,3, Yuhui Zhang4
1Division of Cardiovascular Medicine, NYU Langone Health, New York, NY 10016, USA.
Journal of clinical medicine
|May 27, 2023
概括
心脏移植后的低心率反应 (HRR) 与较差的存活率和运动能力的降低有关. 改善HRR可能会改善心脏移植接受者的结果.
科学领域:
- 心脏病学 心脏病学
- 移植医学 移植医学
- 运动生理学 运动生理学
背景情况:
- 已知慢性无能症会降低心脏移植后的运动耐受性.
- 移植后心率响应 (HRR) 对死亡率的预后价值仍然不清楚.
研究的目的:
- 研究移植后心率反应 (HRR) 与患者存活率之间的关联.
- 确定HRR是否可以作为心脏移植后死亡率的预后标志物.
主要方法:
- 对成年心脏移植接受者 (2000-2011) 进行回顾性分析,在一年内进行心肺运动测试 (CPET).
- HRR计算为运动心率峰值减去休息心率.
- 考克斯比例危险模型和卡普兰-梅尔分析用于评估HRR对死亡率的影响.
主要成果:
- 在210名患者中,每次心跳/分钟HRR增加与死亡风险降低3%相关 (HR 0.97).
- 与HRR<35次/分钟 (逻辑等级p=0.0012) 的患者相比,HRR>35次/分钟的患者的生存率更高.
- 增加HRR与改善的峰值氧气消耗和运动持续时间有关.
结论:
- 接受心脏移植患者的低心率响应 (HRR) 与全因死亡率的增加有关.
- 减少运动能力也与心脏移植后HRR较低有关.
- 需要进一步的研究来探索心脏康复中的HRR向,以改善患者的治疗结果.
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