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LECTURE No. 6. Violation of the heart rhythm in children. Clinic, diagnosis, treatment



Arrhythmias are heart rhythm and conduction disorders, found in congenital heart defects, 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 rotating in the sinus node (violation of the formation of an excitation pulse):

1) nomotopic rhythm disturbances (impulse formation in the sinus node - sinus arrhythmia, sinus tachycardia, sinus bradycardia;

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

2. Passive ectopic rhythms:

1) nodal rhythm;

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

3.
Active ectopic rhythms:

1) extrasystole;

2) paroxysmal tachycardia;

3) atrial and ventricular fibrillation;

4) flutter of the atria and ventricles.

4. Disorders of the conduction function (blockade), deceleration, complete delay in conducting excitation along the conductor system:

a) sinoauricular block;

b) atrioventricular block;

c) atrial block;

d) intraventricular block;

e) blockade of the legs of the bundle of His.

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LECTURE No. 6. Violation of the heart rhythm in children. Clinic, diagnosis, treatment

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