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Tachycardia

Tachycardia is an increase in heart rate. Most often, tachycardia occurs when there is an increased activity of the sinus node (sinus tachycardia), which is usually caused by an increased influence of the sympathetic nerve. Paroxysms of tachycardia (up to 200 heartbeats per minute and above) may be due to impulses that occur in the myocardium outside the sinus node, the so-called paroxysmal tachycardia (see Heart arrhythmias ).

Tachycardia can occur in healthy people with physical and emotional stress, with eating, etc. (physiological tachycardia).

Tachycardia is also observed when the body temperature rises: the number of heartbeats increases by 8 to 10 beats per minute. for every degree above 37 °. Tachycardia is observed in many diseases: with thyrotoxicosis , tuberculosis, anemia, heart failure with its defects, myocarditis, myocardial infarction; often occurs with neurosis. Prolonged tachycardia adversely affects the state of the heart muscle.

Treatment of tachycardia should be aimed at eliminating the cause of it. In neurotic tachycardias, sedatives are prescribed - valerian preparations, monobromic camphor 0.2 g 3 times a day, etc. Some types of tachycardia reliably eliminate the so-called beta-adrenoreceptor blockers (for example, Inderal) through which the sympathetic nerve exerts its effect on the heart . Beta-blockers are used with caution, under the supervision of a physician and in the absence of contraindications to them.