Takotsubo cardiomyopathy after hypoglycemia in a patient with anorexia nervosa

Abstract Background Takotsubo cardiomyopathy, also known as “apical ballooning syndrome”, is generally precipitated by endogenous or exogenous stress. Eating disorders are associated with a variety of physical complications. Case presentation We present a case involving a 37-year-old Japanese female with anorexia nervosa. She was admitted because of emaciation with shortness of breath and tiredness, and her weight was 30.0 kg (BMI 10.5 kg/m2) at this admission. On the afternoon of the first day of hospitalization, a simple measurement caused hypoglycemia (20 mg/dL), and she lost consciousness. On the night of the second day of hospitalization, electrocardiogram showed negative T waves in II, III, aVf, and V1–6. Ultrasound echo showed hypokinesia at the apex of the heart and hypercontraction at the base of the heart. The left ventricular ejection fraction was 20%. Rest and oxygen administration gradually improved her cardiac function; the left ventricular ejection fraction also improved to 50% based on echocardiography. Finally, her weight increased to 43 kg (BMI 15.2 kg/m2) with psychiatric treatment, and she was discharged. Conclusions The present case shows the clinical features of Takotsubo cardiomyopathy induced by a hypoglycemic event in addition to underlying anorexia nervosa.

Abstract licence: CC BY-NC-ND

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