Blockade of the heart

Blockade of the heart - a violation of the cardiac activity associated with the slowing or stopping of the pulse on the conduction system of the heart. There are blockages of sinoatrial (at the level of the muscle tissue of the atria), atrioventricular (at the level of the atrioventricular connection) and intraventricular. In terms of severity, there are 1) a blockade of 1 degree: each impulse is delayed to the lower parts of the conductive system, 2) blockade of the second degree, incomplete: only a part of the impulses is carried out, 3) the blockade is of the third degree, complete: impulses are not carried out. All blockades can be persistent and transient. Occur with myocarditis, cardiosclerosis, myocardial infarction, under the influence of certain drugs (cardiac glycosides, beta-adrenoblockers, verapamil). Congenital complete transverse blockage is very rare.
With incomplete transverse blockades, there is a loss of pulse and heart tones. With complete transverse blockade, persistent bradycardia (pulse less than 40 per minute) is significant. Reduction of blood filling of organs and tissues is manifested by Morganya-Edessa-Stokes attacks (fainting, convulsions). There may be angina, heart failure, sudden death.
But with a syndrome of weakness of the sinus node), a temporary or permanent
Pacing (artificial pacemaker).