Cardiac manifestations in hyperthyroidism.

Area of Science:

• Cardiology
• Endocrinology
• Thyroidology

Background:

• Thyroid hormones critically influence cardiac function via genomic and nongenomic mechanisms.
• Alterations in thyroid hormone levels lead to significant physiological changes affecting the heart.
• Thyroid dysfunction is linked to increased incidence and prevalence of cardiovascular diseases.

Purpose of the Study:

• To provide an updated review of hyperthyroidism's cardiac implications.
• To highlight the role of thyroid hormones in cardiovascular conditions.
• To assess the importance of hyperthyroidism in perioperative cardiovascular risk evaluation.

Main Methods:

• Literature review of current research on thyroid hormones and cardiac function.
• Analysis of genomic and nongenomic effects of thyroid hormones on the heart.
• Synthesis of data regarding hyperthyroidism's impact on various cardiac conditions and perioperative risk.

Main Results:

• Thyroid hormone imbalances profoundly affect heart rate, contractility, rhythm, and cardiac output.
• Hyperthyroidism is associated with a spectrum of cardiac abnormalities.
• Understanding these effects is crucial for managing cardiovascular risk, especially in surgical patients.

Conclusions:

• Thyroid hormones are essential regulators of cardiac function.
• Hyperthyroidism poses significant risks to cardiovascular health.
• Comprehensive evaluation of thyroid status is vital for perioperative cardiovascular risk assessment.