电子机械窗口用于心律失常风险评估
Peter M Deissler1, Paul G A Volders1, Rachel M A Ter Bekke1
1Department of Cardiology, Maastricht University Medical Center+, Maastricht, The Netherlands; Cardiovascular Research Institute Maastricht (CARIM), Maastricht University, Maastricht, The Netherlands.
Heart rhythm
|June 15, 2024
概括
电机窗 (EMW) 测量心脏的电气和机械时间. 异常的EMW值可以预测心室失常风险,指导患者管理.
科学领域:
- 心脏病学 心脏病学
- 电力生理学 电力生理学
- 心脏机械学 心脏机械学
背景情况:
- 电机窗口 (EMW) 反映了心脏电活动和机械收缩之间的时间关系.
- 心室节律失常是一个重大的临床挑战,需要改进风险分层工具.
研究的目的:
- 审查EMW在心室失常风险分层中的作用.
- 为了标准化EMW的心声回声评估.
- 定义EMW截止值,并讨论病理生理学的基础.
主要方法:
- 审查关于EMW和心律失常风险的当前知识.
- 标准化心声回声EMW评估协议.
- 对异常EMW (负和正) 的切割值的定义.
主要成果:
- 建议EMW作为心室失常风险的独立预测因子.
- 提出了标准化的评估和定义的截止值.
- 讨论了负EMW背后的病理生理机制.
结论:
- 电磁波具有作为心室失常风险分层的新生物标志物的潜力.
- 对心脏电力学关系的进一步研究对于前节律失常的条件是有必要的.
相关概念视频
Pulse rhythm
783
Pulse rhythm refers to the pattern of pulsations within specific intervals, offering valuable insights into the regularity or irregularity of the heart's beats as observed through the pattern of pulsation within specific intervals. A regular pulse exhibits a consistent heart rate with uniform waveforms and pulsation force, variations of which can be classified as normal, weak, or bounding.
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
Conversely, an irregular pulse pattern is termed dysrhythmia, stemming from disruptions in cardiac...
783
Mechanism of Cardiac Arrhythmias
910
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.
910
Disturbances in Heart Rhythm
933
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...
933
Electrocardiogram
2.3K
An electrocardiogram (ECG or EKG) is a critical diagnostic tool that records the electrical signals produced by the heart during each heartbeat. This recording is achieved through electrodes placed strategically on the arms, legs, and chest. The electrocardiograph amplifies these signals and produces 12 distinct tracings, offering a comprehensive understanding of the heart's electrical activity.
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
Three major waveforms are present in a typical ECG recording: the P wave, the QRS complex, and...
2.3K


