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Updated: May 10, 2026

Isolation of Human Atrial Myocytes for Simultaneous Measurements of Ca2+ Transients and Membrane Currents
10:53

Isolation of Human Atrial Myocytes for Simultaneous Measurements of Ca2+ Transients and Membrane Currents

Published on: July 3, 2013

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人間の選択性冠動脈閉塞の電気生理学的効果

Jesús Álvarez-García1, Miquel Vives-Borrás2, Pedro Gomis2

  • 1From Cardiology Department, Hospital de la Santa Creu i Sant Pau, IIB-SantPau, Universidad Autónoma de Barcelona, Spain (J.A.-G., M.V.-B., A.F.-G., A.S.-P., J.C.); Department ESAII, EUETIB, Universidad Politécnica de Cataluña, Barcelona, Spain (P.G.); and Biochemistry and Molecular Biology Department, Hospital de la Santa Creu i Sant Pau, IIB-SantPau, Universidad Autónoma de Barcelona, Spain (J.O.-L.). jalvarezg@santpau.cat.

Circulation
|May 7, 2016
PubMed
まとめ

冠動脈血管形成手術中の急性心房不全は 心筋損傷を増加させ,心房細動のような心房不律を引き起こします. 冠動脈疾患の患者では,心房不全が心房細動を引き起こす可能性があることを示唆しています.

キーワード:
PRセグメントの偏差血管新生,風船,冠動脈心房細動動脈停止冠動脈閉塞心筋梗塞

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関連する概念動画

Electrophysiology of Normal Cardiac Rhythm01:19

Electrophysiology of Normal Cardiac Rhythm

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 of...
Mechanism of Cardiac Arrhythmias01:28

Mechanism of Cardiac Arrhythmias

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.
Pathophysiology of Cardiac Performance01:29

Pathophysiology of Cardiac Performance

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...
Heart Valves01:16

Heart Valves

The human heart is a complex organ with an intricate system of valves that regulate blood flow. There are two main types of valves: atrioventricular (AV) valves and semilunar valves.
The AV valves prevent the backflow of blood from the ventricles to the atria during ventricular contraction. These valves function with the assistance of the chordae tendineae and papillary muscles. When the ventricles are relaxed, the chordae tendineae are slack, allowing blood to flow from the atria into the...
Conduction System of the Heart01:19

Conduction System of the Heart

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...