Introduction: Changes in ECG are found in over 80% of patients with anorexia nervosa (AN). Patients with a considerable weight loss are particularly exposed to severe metabolic and pathophysiological disorders. With time, most patients adjust well to food deficiencies, finally, however, the organism’s adaptability becomes exhausted, giving rise to life‑threatening symptoms. Aim of the study: The study is aimed at assessment of the correlation between BMI, weight loss, duration of emaciation and changes in ECG for all patients with diagnosed AN as well as respective types of AN (restricting and binge/purging). Material and methods: Participants of the study were 34 patients with diagnosed AN according to DSM‑IV criteria: 17 patients were diagnosed with the restricting type of AN, whereas the other 17 – with binge/purging type of AN. Each patient underwent ECG assessed by a cardiologist. Results: Changes in ECG were found in 80% of patients with AN, with similar incidence in restricting and binge/ purging types: 50% were rhythm and conduction disorders. A positive correlation was indicated between a decreasing body mass index and changes in ECG for all patients with diagnosed AN as well as for respective types of AN. A positive correlation was found between the body mass loss and changes in ECG for patients with restricting type of AN. A negative correlation was found between the duration of the disease and changes in ECG for all the examined groups. Conclusions: Changes in ECG are common in AN. The risk of the occurrence of changes in ECG is higher with a lower BMI and shorter duration of emaciation (for all the examined groups) and higher percentage weight loss (for patients with restricting type of AN).

restricting type, binge/purging type, changes in ECG, BMI, weight loss, duration of emaciation