Abstract. Tachycardia is not a disease, but a symptom, as it can be observed as a manifestation of many diseases. Its most common causes are disorders of the autonomic nervous system, diseases of the endocrine system, hemodynamic disorders, and various forms of arrhythmia.
Pathological tachycardia can cause negative consequences:
First, when the heart beats fast, its efficiency decreases, because the ventricles do not have time to fill with blood, as a result, blood pressure decreases and the quality of its delivery to the organs deteriorates.
Secondly, the heart's own blood supply is also impaired, because it does more work per unit of time and, accordingly, requires more oxygen, its poor blood supply increases the risk of coronary heart disease and subsequent heart attacks.
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SCIENCE & INNOVATION