Hyponatraemia-induced Takotsubo syndrome secondary to idiopathic syndrome of inappropriate antidiuretic hormone: a case report.

ABSTRACT:

Background

Takotsubo cardiomyopathy (TC), also known as stress cardiomyopathy or broken-heart syndrome, is an acute, reversible left ventricular dysfunction often triggered by stress and associated with elevated catecholamine levels. Hyponatraemia has been recognized as a potential trigger for TC, although its pathophysiological mechanisms remain unclear.

Case summary

We present the case of an 84-year-old woman with a history of Type 2 diabetes, primary hypertension, hypothyroidism, and osteoporosis, who was admitted for typical angina and seizures. Initial laboratory tests revealed severe hyponatraemia (serum sodium: 119 mmol/L) and elevated cardiac enzymes. Electrocardiogram showed Wellens Type B syndrome and subsequent ST-segment elevation. Coronary angiography revealed n

SUBMITTER: Lopez-Trejo FI 

PROVIDER: S-EPMC11804244 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature