Nine patients with anorexia nervosa are described, 7 of whom have abnormal electrocardiograms. These are contrasted with 2 patients with other psychiatric disorders who had also lost weight through failure to eat, and whose electrocardiograms were normal. The abnormalities occurred in the absence of cardiac disease and with normal serum electrolytes. It is postulated that the abnormalities are ...

A reduced-order model based on proper orthogonal decomposition (POD) is proposed for the bidomain equations of cardiac electrophysiology. Its accuracy is assessed through electrocardiograms in various configurations, including myocardium infarctions and long-time simulations. We show in particular that a restitution curve can efficiently be approximated by this approach. The reduced-order model...