动脉硬,波浪反射,以及冠状动脉疾病的风险
Thomas Weber1, Johann Auer, Michael F O'Rourke
1Cardiology Department of the General Hospital of the Kreuzschwestern, Wels, Austria. thomas.weber@khwels.at
Circulation
|December 10, 2003
概括
动脉硬度的非侵入性测量,如增强指数 (AIx),强烈预测冠状动脉疾病风险,特别是在年轻男性. 这为心血管疾病提供了有价值的查工具.
科学领域:
- 心血管医学 心血管医学
- 生物医学工程 生物医学工程
- 血管生理学 血管生理学
背景情况:
- 侵入性动脉硬度测量可以预测冠状动脉样硬化,但对于广泛的查是不切实际的.
- 为了在大量患者群体中高效地分层风险,需要使用非侵入性方法.
研究的目的:
- 评估非侵入性动脉刚性和波反射标记,以预测冠状动脉疾病 (CAD).
- 评估增强指数 (AIx) 和增强压力 (AP) 与CAD风险之间的关联.
主要方法:
- 预期招募465名有症状的男性接受冠状动脉血管造影.
- 动脉硬度和波反射的非侵入性量化,使用平面化度和转移函数分析.
- 从辐射动脉波形计算增压 (AP) 和增压指数 (AIx).
主要成果:
- 在单变量分析中,较高的AIx与增加的CAD风险显著相关 (OR,4.06).
- 在多变量分析 (OR,6.91) 中,这种关联仍然显著,独立于传统的风险因素.
- 风险关联在年轻男性 (≤60岁) 中特别强,未调整的OR为8.25和调整的OR为16.81.
结论:
- 非侵入性确定的AIx和AP是早期冠状动脉疾病的强大,独立的风险标志物.
- 这些非侵入性参数反映了动脉硬化和波反射,有助于评估心血管风险.
相关概念视频
Coronary Artery Disease I: Introduction
1.8K
Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
1.8K
Coronary Artery Disease II: Pathophysiology
1.1K
Coronary Artery Disease (CAD) originates from a series of events that impair the function of coronary arteries, the blood vessels responsible for delivering oxygen-rich blood to the heart muscle. The pathophysiology of CAD is closely linked to atherosclerosis, a chronic inflammatory and lipid-driven condition affecting the vascular endothelium.1. Endothelial DamageThe process begins with damage to the vascular endothelium, which serves as a protective barrier between the blood and the vessel...
1.1K
Coronary Artery Disease IV: Preventive Measures
890
Effective preventive measures for coronary artery disease (CAD) focus on controlling modifiable risk factors, including cholesterol abnormalities and lifestyle changes.Cholesterol ManagementFirst, the Mediterranean diet and the American Heart Association advocate for maintaining low-density lipoprotein (LDL) cholesterol levels below 100 mg/dL, with a more stringent recommendation of below 70 mg/dL for individuals at high risk. LDL cholesterol, often termed "bad cholesterol," can lead to the...
890
Atherosclerosis II: Clinical Manifestations and Diagnostic Tests
948
Atherosclerosis is a progressive disorder that leads to the thickening and narrowing of arterial walls due to plaque buildup. This condition can cause various symptoms depending on the arteries affected:Coronary Artery Disease (CAD): This condition affects the coronary arteries and may lead to chest pain (angina), shortness of breath (dyspnea), heart attacks, and other heart disease symptoms.Cerebrovascular Disease: This affects blood flow to the brain, causing transient ischemic attacks (TIAs)...
948
Peripheral Artery Disease I: Introduction
659
Peripheral artery disease (PAD) predominantly results from atherosclerosis, which involves the accumulation of fatty deposits, or plaques, within the walls of arteries. This causes them to narrow and harden, significantly reducing blood flow. PAD predominantly affects the legs, particularly the arteries supplying the thighs and calves. In rare cases, it may involve other arteries, including those in the arms.Etiology of PAD:The principal cause of PAD is atherosclerosis, which results from fatty...
659
Peripheral Arterial Disease II: Clinical Manifestations and Diagnostic Evaluation
764
Clinical manifestationsPeripheral Arterial Disease (PAD) manifests through a range of symptoms, from the characteristic intermittent claudication to atypical presentations and severe complications in advanced stages. Intermittent claudication, a hallmark symptom of PAD, presents as exercise-induced muscle pain that typically resolves within minutes of rest. This pain is reproducible and stems from inadequate blood flow, leading to the accumulation of lactic acid produced during anaerobic...
764


