My one-year-old has a heart condition with a hole, about 104 mm in size. He weighs 7 kg, but his birth weight was 2 kg, and I'm worried because it seems like he's not gaining weight as he should for his age. Can you help me understand what's going on and what we can do about it?

Based on the information provided, it seems like your child has a congenital heart defect with a hole in the heart. In this case, the treatment usually involves medications to manage symptoms and sometimes surgical intervention may be necessary. One common medication used to manage heart conditions in children is **Digoxin**. The usual dosage for a child with a heart condition is 20-35 micrograms per kg per day, divided into 3 doses. It is important to consult with a pediatric cardiologist for a proper evaluation and treatment plan tailored to your child's specific condition. Regular follow-up visits are crucial to monitor your child's growth and heart health.