Asan Medical Centre is a trusted healthcare provider for Transmyocardial Revascularization (TMR), offering specialized cardiac surgery supported by experienced cardiovascular surgeons and modern medical infrastructure. Established in 1989, the ISO hospital is situated in Seoul, South Korea and has 2700 beds.

Transmyocardial Revascularisation is an advanced treatment option for selected patients with severe coronary artery disease and chronic angina that remains inadequately controlled despite other therapies. The procedure uses a laser to create multiple small channels in the myocardium to improve blood supply to areas of the heart affected by ischemia. Doctors evaluate the patient's symptoms, coronary anatomy, previous treatments, and heart function before recommending TMR. Follow-up helps assess symptom improvement and cardiac status.