心脏传导系统的解剖学和病理学
Roshan Karki1, Anvi Raina1, Fatima M Ezzeddine1
1Department of Cardiovascular Medicine, Mayo Clinic College of Medicine, Rochester, MN 55905, USA.
Cardiology clinics
|June 15, 2023
概括
这篇评论详细介绍了心脏导电系统的细节.
科学领域:
- 心血管科学 心血管科学
- 心脏电生理学 心脏电生理学
- 人类解剖学 人类解剖学
背景情况:
- 心脏传导系统包括专业组织,这些组织对心律至关重要.
- 了解它的解剖学和病理学对于治疗心律失常和心力衰竭至关重要.
研究的目的:
- 要总结心脏导电系统的正常和发育解剖学.
- 审查传导系统的变异,先天异常和病理.
- 为干预电生理学家提供临床见解.
主要方法:
- 关于心脏导电系统解剖学,发育和病理学的文献综述.
- 综合有关正常变异和先天异常的信息.
- 为程序医生确定临床珍珠.
主要成果:
- 详细概述心脏导电系统的结构和发展.
- 解剖学变异和先天性异常的概述.
- 讨论关键病理及其临床相关性.
结论:
- 对心脏导电系统的全面了解对电生理学家至关重要.
- 本综述提供了安全有效的除和器件治疗的基本知识.
- 提供临床珍珠,以帮助管理心律失常和心力衰竭.
更多相关视频
05:16Whole-Mount Immunofluorescence Staining, Confocal Imaging and 3D Reconstruction of the Sinoatrial and Atrioventricular Node in the Mouse
Published on: December 22, 2020
5.7K
09:35Preclinical Cardiac Electrophysiology Assessment by Dual Voltage and Calcium Optical Mapping of Human Organotypic Cardiac Slices
Published on: June 16, 2020
10.0K
相关概念视频
Conduction System of the Heart
9.3K
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...
9.3K
Electrophysiology of Normal Cardiac Rhythm
6.6K
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...
6.6K
Cardiac Action Potential
1.8K
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
1.8K
Mechanism of Cardiac Arrhythmias
968
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.
968
Pathophysiology of Cardiac Performance
712
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...
712
Structure of Cardiac Muscles
13.5K
Cardiac muscle, or myocardium, is a specialized type of muscle found exclusively in the heart. Its unique structural and functional characteristics enable the heart to perform its vital role of pumping blood throughout the body continuously and rhythmically. The cardiac muscle cells, or cardiomyocytes, possess an endomysium and perimysium but do not have an epimysium.
Compared to skeletal muscles, cardiac muscle cells are small and mostly have a single nucleus. Additionally, they are usually...
Compared to skeletal muscles, cardiac muscle cells are small and mostly have a single nucleus. Additionally, they are usually...
13.5K
