Reversal of Bradycardia through Nutritional Rehabilitation in Paediatric Anorexia Nervosa: A Retrospective Study from Qatar

BackgroundAnorexia nervosa (AN) is a severe mental health disorder characterized by persistent energy intake restriction, intense fear of weight gain, and a distorted body image. AN affects nearly every organ system, with the cardiovascular system being affected in up to 80% of cases [1]. AN carries the highest mortality among psychiatric disorders, with sudden cardiac death as a major cause [2]. Bradycardiais the most common cardiovascular manifestation in AN.1 Nutritional rehabilitation reverses these abnormalities, but rapid weight gaincan pose risks such as electrolyte imbalance and arrhythmias. Early detection and monitoring of bradycardia are therefore crucial [3]. Methods We conducted a retrospective cohort study using data from Sidra Medicine and Hamad General Hospital in Qatar. Patients admitted between December 2016 and June 2024 with AN and bradycardia (Heart Rate (HR)