| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (440 reviews) | Barcelona, Spain | 35+ years23,000+ treatments | Tetralogy of Fallot Surgery, Reconstruction of the right ventricular outflow tract | Complex congenital heart defects | Clinic has specialized doctors with 98.2% postoperative survival rate and over 5,000 cardiac surgeries performed. JCI accredited and offers advanced pediatric cardiac care. | Joint Commission International , European Foundation for Quality Management |