动或心房动与CHA2DS2-VASc评分对缺血性中风风险的相互作用:基于人口的队列研究
Mohab Basem1, Kasper Bonnesen1, Péter Szentkúti1
1Department of Clinical Epidemiology, Center for Population Medicine, Aarhus University Hospital and Aarhus University, Denmark; Department of Clinical Medicine, Aarhus University, Denmark.
International journal of cardiology
|May 18, 2025
概括
心房动 (AF/AFL) 和CHA2DS2-VASc评分相互作用,从而提高缺血性中风风险. 女性表现出最显著的相互作用效应,突出其在中风风险评估中的重要性.
科学领域:
- 心脏病学 心脏病学
- 神经学 神经学
- 流行病学 流行病学
背景情况:
- CHA2DS2-VASc评分是为了预测心房或动 (AF/AFL) 患者的缺血性中风风险而建立的.
- 在增加中风风险方面,AF/AFL和CHA2DS2-VASc得分之间的潜在相互作用仍然在很大程度上未得到量化.
研究的目的:
- 调查AF/AFL和CHA2DS2-VASc得分之间的相互作用对缺血性中风风险的影响.
- 为了确定AF/AFL和CHA2DS2-VASc得分的综合效果是否超过它们的个体风险的总和.
主要方法:
- 一项大规模的丹麦队列研究包括287,990名患有AF/AFL的成年患者和1,404,705名匹配的对照从1996年至2021年.
- 在CHA2DS2-VASc得分类别 (0,1,2,≥3) 中,在各种随访间隔 (1,1.5,5-10年) 中分析了缺血性中风的发生率.
- 评估了AF/AFL和单个CHA2DS2-VASc分数组件之间的相互作用效应,使用相互作用对比.
主要成果:
- 缺血性中风率的11%增加归因于AF/AFL和CHA2DS2-VASc得分为1之间的相互作用,在1年的随访中.
- 在5-10年的随访期间,在AF/AFL和CHA2DS2-VASc得分≥3之间观察到6%的相互作用效应.
- 在所有随访期间,女性表现出与AF/AFL的显著相互作用效应.
结论:
- 前庭动/动和CHA2DS2-VASc评分表现出协同效应,增加缺血性中风风险,超出了它们的附加贡献.
- 女性的性别是AF/AFL和中风风险之间的相互作用的一个关键因素,需要特别的临床考虑.
相关概念视频
Disturbances in Heart Rhythm
812
Arrhythmia or dysrhythmia refers to an abnormal heart rhythm caused by a defect in the heart's conduction system. It can cause the heart to beat irregularly, too quickly, or too slowly, leading to symptoms like chest pain, shortness of breath, and fainting. Factors such as stress, caffeine, alcohol, nicotine, cocaine, certain drugs, congenital defects, diseases, and electrolyte abnormalities can trigger arrhythmias.
Arrhythmias are categorized by their speed, rhythm, and origin. A slow...
Arrhythmias are categorized by their speed, rhythm, and origin. A slow...
812
Mechanism of Cardiac Arrhythmias
867
Arrhythmias are irregular heart rhythms occurring when the heart's electrical impulses become abnormal. These disturbances can lead to various symptoms, depending on their severity and the underlying cause. Some common factors contributing to arrhythmias include hypoxia, ischemia, electrolyte imbalances, excessive catecholamine exposure, drug toxicity, and muscle overstretching. Arrhythmias can be classified into two main types based on the rate and site of origin of abnormal heart rhythms.
867
Imbalances in Cardiac Output
1.3K
The heart's primary function is to pump blood throughout the body, maintaining a balance between blood sent out (cardiac output) and blood returning (venous return). If this balance is disrupted, it can result in congestive heart failure (CHF), a severe condition where the heart becomes an inefficient pump, leading to inadequate blood circulation.
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
CHF can occur due to the failure of either side of the heart. Left-side failure leads to pulmonary congestion—the right side continues to send...
1.3K
Antiarrhythmic Drugs: Class IV Agents as Calcium Channel Blockers
746
Class IV antiarrhythmic drugs, such as verapamil and diltiazem, block calcium channels. They primarily affect the heart, slowing the conduction in calcium-dependent tissues like the SA and AV nodes. These drugs manage reentrant supraventricular tachycardia (SVT) and reduce ventricular rate in atrial flutter/fibrillation.
Verapamil, a calcium channel blocker, inhibits calcium movement across myocardial cell membranes and vascular smooth muscle. This results in the dilation of coronary and...
Verapamil, a calcium channel blocker, inhibits calcium movement across myocardial cell membranes and vascular smooth muscle. This results in the dilation of coronary and...
746
Antiarrhythmic Drugs: Class III Agents as Potassium Channel Blockers
879
Class III antiarrhythmic drugs are a group of medications that can prolong action potentials in the heart. They achieve this by blocking potassium channels or enhancing inward currents from sodium channels. However, these drugs have a unique property of "reverse use-dependence," which is most pronounced at slower heart rates and can lead to torsades de pointes—a specific type of arrhythmia. However, it is essential to note that excessive QT interval prolongation—a measure of...
879
Antiarrhythmic Drugs: Class II Agents as β-Adrenergic Blockers
695
Adrenergic stimulation generally impacts cardiac rate and rhythm. Specifically, stimulation of the β-adrenoceptors triggers an increase in intracellular calcium ion influx and pacemaker currents, which may cause arrhythmias. Catecholamines like adrenaline also demonstrate β2-adrenoceptor-mediated hypokalemia, impacting cardiac action potential and disrupting the normal cardiac rhythm. Class II antiarrhythmic drugs are β-adrenoceptor antagonists or β-blockers, which...
695


