The connection between the thyroid gland and heart failure has been revealed. Doctor Rimskaya: Thyroid gland failure causes four heart dysfunctions 11:47

Thyroid hormones affect the functioning of the heart, and malfunction of the thyroid gland can cause various problems in the cardiovascular system. Therefore, in humans, hormonal problems can cause tachycardia, arrhythmia, heart failure, and atrial fibrillation. A cardiologist named after a senior investigator at the National Center for Medical Research in Cardiology. Chazova Russian Ministry of Health Elena Rimskaya.

“Thyroid hormones such as triiodothyronine (T3) and thyroxine (T4) exert their effects through various mechanisms. They interact with receptors on the membranes of cardiomyocytes (heart muscle tissue cells) and their nuclei and regulate the synthesis of various proteins. They can also increase the contractility of the heart muscle by acting directly on adrenergic receptors (adrenaline receptors). This causes blood to be removed from the heart more efficiently with each contraction,” said the cardiologist.

They also affect sodium, potassium and calcium channels and can accelerate heart rate, causing palpitations or tachycardia. They can also affect vascular tone, which affects peripheral resistance and blood pressure.

“Hypothyroidism (hormone deficiency) can cause low blood pressure and slow heartbeat (bradycardia). Low thyroid hormone levels can slow the heart rate, causing bradycardia. Hypothyroidism can also reduce the contractility of the heart, causing blood to pump less efficiently through the heart. Hyperthyroidism and thyrotoxicosis, on the contrary, are characterized by rapid heartbeat. “Hyperthyroidism, that is, increased hormone levels, can cause arrhythmias such as atrial fibrillation or ventricular premature beats and increase blood pressure,” he said.

How thyroid hormones make the heart “tense”, how to understand that heart problems are related to the endocrine system and how to treat the heart against the background of hormonal changes – in report Rimskaya “”.

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Source: Gazeta


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