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Lecture 6. Violation of the heart rhythm in children. Clinic, diagnosis, treatment

Arrhythmias are disorders of heart rhythm and conduction, occur in congenital heart diseases, acquired heart diseases, dysfunction of the central and autonomic nervous system.

Classification of cardiac arrhythmias.

1. Violation of the function of automatism - consists in changing the number of pulses that rotate in the sinus node (disturbances in the formation of the excitation pulse):

1) nomotopic rhythm disturbances (impaired formation of a pulse in the sinus node - sinus arrhythmia, sinus tachycardia, sinus bradycardia;

2) heterotopic rhythm disturbances (the impulse originates outside the sinus node).

2. Passive ectopic rhythms:

1) nodal rhythm;

2) migration of the pacemaker (from the sinus node to the atrioventricular junction).

Active ectopic rhythms:

1) extrasystole;

2) paroxysmal tachycardia;

3) fibrillation of the atria and ventricles;

4) flutter of the atria and ventricles.

4. Disorders of the conductivity (blockade) function, deceleration, complete delay of excitation by the conductor system:

a) sinoaurikulyarnaya blockade;

b) atrioventricular block;

c) atrial blockade;

d) intraventricular blockade;

e) blockade of the legs of the bundle.

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Lecture 6. Violation of the heart rhythm in children. Clinic, diagnosis, treatment

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