| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (141 reviews) | Vilnius, Lithuania | — | — | Replacement of the aortic valve, Coronary artery bypass grafting | — | — | Joint Commission International | |
| #2 | 4.6 / 5 (516 reviews) | Istanbul, Turkey | — | — | Aortic aneurysm surgery, Open heart surgery | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | |
| #3 | 4.3 / 5 (16 reviews) | Hamburg, Germany | — | — | Coronary stenting, Coronary artery bypass grafting | — | — | International Organization for Standardization, Medical Travel Quality Alliance | |
| #4 | 4.6 / 5 (130 reviews) | Hamburg, Germany | — | — | Radiofrequency ablation, Coronary stenting | — | — | International Organization for Standardization, Medical Travel Quality Alliance | |
| #5 | 4.7 / 5 (7 reviews) | Hamburg, Germany | — | — | Coronary stenting | — | — | International Organization for Standardization, CERTKOM certificate for qualified pain therapy | |
| #6 | 4.0 / 5 (1 review) | Hamburg, Germany | — | — | Holter monitoring | — | — | World's Best Hospitals 2021 by Newsweek | |
| #7 | 4.6 / 5 (217 reviews) | Istanbul, Turkey | 28+ years | Intracranial Arterial Angioplasty and Stenting, Radiofrequency ablation | — | — | Joint Commission International , Turkish Medical Association (Türk Tabıplerı Bırliği) | ||
| #8 | 4.7 / 5 (135 reviews) | Istanbul, Turkey | — | — | Radiofrequency ablation, Coronary angiography | — | — | International Organization for Standardization, Joint Commission International | |
| #9 | 4.6 / 5 (473 reviews) | Istanbul, Turkey | — | — | Interventricular septal defect surgery, Transcatheter aortic valve implantation (TAVI) | — | — | Joint Commission International , Patient choice in Pediatric Oncology & Hematology Oncology | |
| #10 | 4.9 / 5 (46 reviews) | Milan, Italy | — | 8,000+ treatments | Replacement of the aortic valve, Coronary angiography | — | — | Scientific Institute for Research and Healthcare Accrediatation, World's Best Hospitals 2021 by Newsweek |