Abstract

Thyrotoxicosis is a common endocrine disorder that presents with a wide variety of systemic symptoms that affect the cardiovascular system (1).

In the literature, hyperthyroidism is associated with cardiac morbidity and mortality (2). Symptoms related to the cardiovascular system, such as palpitations or angina, are a frequent presentation in patients with hyperthyroidism. Adrenergic stimulation, which results in increased cardiac output and contractility, can induce myocardial ischemia (3), as well as transient coronary vasospasm that is reported in up to 20% of patients with hyperthyroidism (4) and the effect antagonist of calcium in the myocardium (5).

This review presents the case of a young patient, with no significant pathological history, who consults the emergency department due to chest pain, with an electrocardiogram showing ST segment elevation, however, with cardiac catheterization that reports healthy coronary arteries and echocardiogram that shows segmental disorder of contractility and decreased left ventricular ejection fraction, attributed to coronary vasospasm, due to thyrotoxicosis based on the findings of laboratory tests.