心率变化生物反和精神压力心肌流量储备:一项随机临床试验
Amit J Shah1,2,3, Paolo Raggi4,5, Hua She1
1Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, Georgia.
JAMA network open
|October 21, 2025
概括
心率变化生物反 (HRVB) 在冠状动脉疾病 (CAD) 患者的精神压力期间改善了心肌动脉血流. 这种干预措施对预防心血管疾病有希望.
科学领域:
- 心脏病学 心脏病学
- 自主神经系统研究 自主神经系统研究
- 心理生理学 心理生理学
背景情况:
- 心率变化生物反 (HRVB) 是一种针对自主神经系统活动的自我调节技术.
- 调查HRVB对心血管应对心理压力的影响对于冠状动脉疾病 (CAD) 患者至关重要.
研究的目的:
- 检查HRVB对心肌动脉血流 (MBF) 在心脏病患者精神压力期间变化的影响.
主要方法:
- 一项试点随机临床试验,涉及21名患有CAD的参与者.
- 干预组接受了6周的HRVB培训;对照组接受了通常的护理.
- 心肌血流量 (MBF) 和精神压力心肌流量储备 (MFR) 在基线和8周后使用鲁比-82正子发射断层扫描进行测量.
主要成果:
- 与常规护理组相比,HRVB组的MFR与精神压力显著增加 (0.10个单位大,P=.03).
- 虽然组内变化没有统计学意义,但MFR变化的组间差异是显著的.
- 在HRVB组中,平均MFR从1.07增加到1.16;在常规护理组中,从1.20增加到1.15.
结论:
- 与常规护理相比,HRVB干预导致CAD患者的MFR与精神压力增加.
- 这些发现表明HRVB在精神压力期间对心血管健康的潜在益处.
- 需要进行更大规模的试验来证实HRVB在预防心血管疾病方面的有效性.
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