conduction system of the heart

conduction system of the heart

the network of highly specialized muscle tissue that transmits the electrical impulses needed for a heartbeat. It includes the sinus and atrioventricular (AV) nodes, the conducting fibers between the nodes, the AV bundle (bundle of His), the left and right bundle branches, and the Purkinje fibers. See also cardiac cycle.
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Conduction system of the heart

conduction system of the heart

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CONDUCTION SYSTEM OF THE HEART
Specialized myocytes in the heart that conduct the electrical impulses throughout the heart. In order of normal conduction, the system consists of the sinoatrial node, the intra-atrial tracts, the atrioventricular node, the bundle of His, the right and left bundle branches, and the Purkinje fibers. See: illustration
References in periodicals archive ?
MYH6 encodes one form of myosin, a major component of the contractile system of the heart, and was recently associated with the function of the conduction system of the heart by studies from deCODE and others.
Congenital disease of the electrical conduction system of the heart or a congenital heart disease can also be a reason of intrauterine rhythm disturbances.
The mechanical failure of the heart due to CVD affects the conduction system of the heart.
The presence of one or both of these IgG autoantibodies in the mother increases the risk of neonatal lupus erythematosus (NLE), which can cause rash or changes in blood counts or liver function and, in severe cases, can affect the conduction system of the heart, Dr.
A 12-lead view of the heart is the industry standard for assessing the electrical conduction system of the heart, enabling physicians to identify the exact location of weakened heart muscles, as well as providing more comprehensive data on arrhythmias and ischemia.
The abnormality noted in the conduction system of the heart in chronic alcoholics is a prolongation of the QT interval.
It continuously monitors the electrical conduction system of the heart, watching for dangerous patterns and delivering electrical impulses when needed that may range from a tiny pulse like a cardiac pacemaker's to a full, life-saving shock that can return the heart to normal rhythm.
Many patients with atrial arrhythmias are elderly and have pre-existing diseases involving the electrical conduction system of the heart.
The new product is the latest in Medtronic's family of Sprint leads designed for transvenous use with implantable systems that monitor the electrical conduction system of the heart and deliver precisely programmed electrical impulses intended to correct dangerously rapid rhythms.
All of these conditions can cause stretching and scarring of the atria that interfere with the electrical conduction system of the heart.
It is intended to monitor the electrical conduction system of the heart and deliver lifesaving therapy for ventricular arrhythmias and defibrillation impulses if necessary.
It carries three electrodes, one for delivering defibrillation energy and two for sensing and pacing the electrical conduction system of the heart.