Caring for the smallest hearts, pediatric cardiology addresses cardiovascular disorders in infants, children, and adolescents. Early detection of conditions like tetralogy of Fallot or ventricular septal defects through advanced imaging tools has revolutionized how these diseases are managed. Beyond diagnostics, the field incorporates novel therapeutic approaches, including hybrid surgeries and genetic therapies, to improve outcomes. Research is also exploring the long-term effects of pediatric heart conditions, ensuring that treatment strategies prioritize the child's future health. With a multidisciplinary approach, pediatric cardiology strives to provide holistic care for the most vulnerable patients.