| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (441 reviews) | Barcelona, Spain | 35+ years23,000+ treatments | Pediatric mitral valve replacement, minimally invasive cardiac surgery | Congenital heart disorders in children | Dr. Raul Felipe Abella's team has a 98.2% postoperative survival rate and performed over 5,000 cardiac operations. Clinic is JCI accredited with specialized pediatric care. | Joint Commission International , European Foundation for Quality Management | ||
| #2 | 4.5 / 5 (0 reviews) | Madrid, Spain | — | — | Pediatric Mitral Valve Replacement | — | — | Joint Commission International , International Organization for Standardization |