Tag Archives: hypothyroidism

Background Hypothyroidism is a common endocrine disorder, which has a variety of effects on the cardiovascular system including decreased cardiac output, increased systemic vascular resistance, accelerated atherosclerosis and rhythm disturbances, such as sinus bradycardia, conduction defects or non-specific ST changes.1,2 Hypothyroidism can also cause prolongation of the QTc interval and ventricular arrhythmias.1 Case presentation A 76-year-old woman was admitted to our hospital with a collapse, and while in the emergency department she sustained a witnessed cardiac arrest secondary to torsades de pointes (TdP) (figure 1). This was terminated

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