| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.6 / 5 (515 reviews) | Istanbul, Turkey | 14+ years | Aortic aneurysm surgery, Open heart surgery | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | ||
| #2 | 4.6 / 5 (127 reviews) | Antalya , Turkey | — | — | Replacement of the aortic valve, Installing heart pacemaker | — | — | Joint Commission International | |
| #3 | 5.0 / 5 (3 reviews) | Incheon, Republic of Korea | 44+ years | Echocardiography | — | — | Korean Institute for Healthcare Accreditation | ||
| #4 | 5.0 / 5 (3 reviews) | Istanbul, Turkey | 24+ years | Echocardiography | — | — | Joint Commission International | ||
| #5 | 4.7 / 5 (360 reviews) | Istanbul, Turkey | 21+ years | Open heart surgery, Peripheral Vascular Stenting | — | — | International Organization for Standardization, Joint Commission International | ||
| #6 | 4.3 / 5 (16 reviews) | Hamburg, Germany | 37+ years | Coronary stenting, Coronary artery bypass grafting | — | — | International Organization for Standardization, Medical Travel Quality Alliance | ||
| #7 | 4.6 / 5 (130 reviews) | Hamburg, Germany | — | — | Radiofrequency ablation, Coronary stenting | — | — | International Organization for Standardization, Medical Travel Quality Alliance | |
| #8 | 4.7 / 5 (7 reviews) | Hamburg, Germany | — | — | Coronary stenting | — | — | International Organization for Standardization, CERTKOM certificate for qualified pain therapy | |
| #9 | 4.0 / 5 (1 review) | Hamburg, Germany | — | — | Echocardiography | — | — | World's Best Hospitals 2021 by Newsweek | |
| #10 | 4.7 / 5 (441 reviews) | Barcelona, Spain | — | 23,000+ treatments | Radiofrequency ablation with 3D mapping, Plastic surgery for cardiac valve | — | — | Joint Commission International , European Foundation for Quality Management |