专门的His Purkinje导电系统的节奏:如何和为谁
Emanuele Chiarazzo1, Paolo Golia2, Edoardo Bressi2,3
1Department of Cardiology, Tor Vergata Hospital of Rome, viale Oxford 81, 00133 Rome, Italy.
概括
导电系统节奏 (CSP) 使用他的捆绑和左捆绑分支节奏来实现更自然的心脏激活. 本综述详细介绍了CSP植入技术和使用建议,为传统节奏方法提供了替代方案.
科学领域:
- 心脏病学 心脏病学
- 电力生理学 电力生理学
- 心脏节拍是因为心脏节拍.
背景情况:
- 心脏的导电系统通过专门的心肌细胞协调节奏收缩.
- 传统的节奏 (RV和双心脏) 刺激心肌,可能导致异步.
研究的目的:
- 审查传导系统节奏 (CSP) 技术.
- 讨论目前关于CSP使用的建议.
- 为了突出CSP作为生理节奏替代品.
主要方法:
- 对他的捆绑节奏的植入技术的审查.
- 对左捆枝节奏的植入技术的审查.
- 对CSP目前临床建议和指导方针的分析.
主要成果:
- CSP涉及到精确的放置在他的捆或左捆分支区域.
- 与传统方法相比,这种方法可以实现更多的生理心室激活.
- 对于需要心脏节拍的患者来说,CSP提供了一个潜在的优越替代方案.
结论:
- 导电系统节奏提供了一个更自然的激活序列.
- 植入技术对于成功的CSP结果至关重要.
- CSP代表了心脏节拍疗法的重大进步.
相关概念视频
01:19Conduction System of the Heart
4.2K
Autorhythmicity is a term that refers to the heart's inherent ability to generate electrical signals and instigate muscle contractions. This self-regulating conduction system within the heart consists of two key components: the pacemaker cells and specialized conducting cells.
The pacemaker cells are located in two primary nodes: the sinoatrial (SA) node and the atrioventricular (AV) node. The SA node pacemaker cells can autonomously depolarize, triggering an action potential that leads to the...
The pacemaker cells are located in two primary nodes: the sinoatrial (SA) node and the atrioventricular (AV) node. The SA node pacemaker cells can autonomously depolarize, triggering an action potential that leads to the...
4.2K
01:19Electrophysiology of Normal Cardiac Rhythm
1.9K
The normal cardiac rhythm is a synchronized electrical activity that facilitates the regular and coordinated contraction of the heart muscle. This process is essential for efficient blood circulation throughout the body. The fundamental elements involved in establishing and maintaining this rhythm include the unique electrical properties of cardiac muscle cells, the sinoatrial (SA) node's pacemaker function, the specialized conducting system, and the ionic mechanisms underlying each phase...
1.9K
01:13The Cardiac Cycle
82.0K
The heart beats rhythmically in a sequence called the cardiac cycle—a rapid coordination of contraction (systole) and relaxation (diastole).
The Process
Electrical signals—sent from the sinoatrial (SA) node in the right atrial wall to the atrioventricular (AV) node between the right atrium and right ventricle—cause both atria to simultaneously contract. When the signal reaches the AV node, it pauses for approximately a tenth of a second, allowing the atria to contract and...
The Process
Electrical signals—sent from the sinoatrial (SA) node in the right atrial wall to the atrioventricular (AV) node between the right atrium and right ventricle—cause both atria to simultaneously contract. When the signal reaches the AV node, it pauses for approximately a tenth of a second, allowing the atria to contract and...
82.0K
01:30Cardiac Action Potential
803
Cardiac action potentials are essential for proper heart function, enabling the rhythmic contractions needed for adequate blood circulation. Nodal cells and Purkinje fibers, specialized for electrical conduction, generate these action potentials.
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials
The cardiac action potential process involves a series of phases characterized by the movement of ions across the cardiac cell membranes, leading to the depolarization and repolarization of the cardiac myocytes.
Ionic Basis of Cardiac Action Potentials
803
01:27Specialized Characteristics of Cardiac Muscles
2.3K
The primary role of cardiac muscles is to propel blood throughout the cardiovascular system. The cardiac muscle cells, or cardiomyocytes, exhibit specialized characteristics that allow them to perform this function.
Cardiac muscle cells are smaller than skeletal muscles, averaging 10–20 mm in diameter and 50–100 mm in length. However, they have large energy demands for continuous contraction and relaxation. This energy is almost exclusively derived from aerobic metabolism of energy...
Cardiac muscle cells are smaller than skeletal muscles, averaging 10–20 mm in diameter and 50–100 mm in length. However, they have large energy demands for continuous contraction and relaxation. This energy is almost exclusively derived from aerobic metabolism of energy...
2.3K
01:29Pathophysiology of Cardiac Performance
510
Typical heart performance is influenced by heart rate, rhythm, myocardial contraction, and metabolism or blood flow. The cardiac muscle exhibits distinct electrophysiological features, including pacemaker activity and calcium channel control, which play a vital role in the heart's response to various drugs. The autonomic nervous system, comprising the sympathetic and parasympathetic branches, regulates heart rate. Sympathetic activation increases heart rate, while parasympathetic activation...
510