血动力学增益指数和心室心律失常的风险:一个前性队列研究
Setor K Kunutsor1, Sae Young Jae2,3,4, Sudhir Kurl5
1Diabetes Research Centre, University of Leicester, Leicester General Hospital, Leicester, UK.
Scandinavian cardiovascular journal : SCJ
|April 29, 2024
概括
较高的血液动力增益指数 (HGI) 与男性腹腔失常风险较低有关. 这种关联取决于心肺呼吸能力 (CRF) 的水平.
科学领域:
- 心脏病学 心脏病学
- 运动生理学 运动生理学
- 预防医学 预防医学
背景情况:
- 血液动力增益指数 (HGI) 是心肺运动测试 (CPX) 的新型指标.
- HGI与不良心血管结果有关,但其与心室心律不整 (VAs) 的关联尚不清楚.
研究的目的:
- 在前性队列研究中调查HGI与发展VA的风险之间的关系.
- 评估HGI是否可以改善VA的风险预测.
主要方法:
- 在1945年男性 (42-61岁) 的CPX期间,使用心率和缩血压反应计算HGI.
- 通过呼吸气体交换分析来测量心肺呼吸能力 (CRF).
- 对VA的危险比率 (HRs) 使用考克斯的比例危险模型进行了估计.
主要成果:
- 在长达28.2年的中位数随访期间,发生了75起VA.
- 较高的HGI与VA风险降低有关,即使经过风险因素调整 (HR 0.72).
- 超出已确定的因素,HGI改善了风险预测,但当CRF被纳入时,这种效应减弱了.
结论:
- 升高的HGI与中年高加索男性的静脉血管风险降低有关.
- HGI对VA风险的保护作用受心肺呼吸能力的影响.
- HGI增强了长期VA风险预测,特别是当与CRF一起考虑时.
相关概念视频
01:19Cardiac Output I:Effect of Heart Rate on Cardiac Output
Cardiac Output
Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
Effect of Heart Rate on Cardiac Output
Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart rate...
Cardiac output (CO) refers to the total amount of blood ejected by one of the ventricles in liters per minute (L/min). In a resting adult, CO ranges from 5 to 6 L/min, adjusting according to the body's metabolic requirements.
Effect of Heart Rate on Cardiac Output
Cardiac output adapts to metabolic demands during stress, physical activity, or illness. The autonomic nervous system regulates heart rate via the sinoatrial node. The parasympathetic nervous system decreases heart rate...
01:20Blood Studies for Cardiovascular System I: Cardiac Biomarkers
Cardiac biomarkers are enzymes, proteins, and hormones released into the blood when cardiac cells are injured. They are powerful tools for triaging.
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...
The essential diagnostic tools for detecting myocardial necrosis and monitoring individuals suspected of having acute coronary syndrome (ACS) include:
Troponins
Troponins, particularly cardiac troponins I and T, are the most precise and sensitive markers of myocardial injury. They are detectable within 4-6 hours of myocardial injury and remain...