Paediatric Restrictive Cardiomyopathy - Diagnosis and Challenges

Restrictive cardiomyopathy is one of the rarest forms of cardiomyopathies in pediatric patients characterized by impaired myocardial relaxation or compliance with restricted ventricular filling, leading to a reduced diastolic volume with a preserved systolic function. We report two cases – a 5-year-old boy who presented with abdominal distension and palpitation with family history of similar complaints but no definite genetic diagnosis as yet, and a 5-year-old girl who presented with chronic cough and shortness of breath. Both cases were diagnosed in Sultan Qaboos University Hospital in 2019 and are managed supportively with regular outpatient follow-up. This is the first series of reported cases of pediatric restrictive cardiomyopathy from Oman. Keywords: restrictive cardiomyopathy, cardiomyopathy in children, heart failure in children.