Abstract
Twelve patients with anorexia nervosa (mean age 17.6 years) underwent noninvasive cardiac evaluation. All patients had normal sinus rhythm at rest, during exercise, and following 24-hr electrocardiographic monitoring. The chest roentgenograms demonstrated a small heart secondary to a loss of left ventricular mass. Three of four patients studied had left ventricular mass measurements less than 100 g (normal is 90-360 g). Most patients had an elevated heart rate response to exercise with a slightly blunted systolic and a normal diastolic blood pressure response. Eleven of the 12 patients had reduced overall maximal working capacity. All but one had normal left ventricular ejection fraction at rest. There was no evidence of arrhythmias at rest, during exercise, or with continuous electrocardiographic recording. Young patients with anorexia nervosa appeared to have essentially normal cardiac function with a reduction in left ventricular muscle mass.
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