Coronary Artery Bypass Grafts and TMR

Once the heart’s blood supply and oxygen are significantly reduced due to heart disease, a cardiologist may recommend a coronary artery bypass graft (CABG) to revascularize or increase blood flow and oxygen to the heart muscle. This surgical procedure uses another vessel from the body, donor, or an artificial vessel to bypass a blocked section of the heart’s arteries. This implanted vessel allows oxygen-rich blood to flow to previously oxygen-starved portions of the heart.

While CABG is often able to revascularize many areas of the heart, there may be arteries around the heart that cannot be grafted or bypassed for a variety of reasons. Research shows that up to 25% of CABG patients are not completely revascularized.1 These areas may still cause pain and need to be revascularized.

Adjunctive TMR

Transmyocardial Revascularization (TMR) can help revascularize those areas that cannot be bypassed to maximize patient outcomes. TMR can occur during a CABG procedure. Once set up, performing TMR will add only about 3 minutes to the overall operation.

Al Phillips had two previous bypass surgeries before receiving a third bypass where his surgeon also used TMR. According to Mr. Phillips, TMR saved his life.

Ask your doctor if TMR is an option during your CABG surgery.


  1. Weintraub WS, et al. AM J Cardiol 1994;73:103-112.

Support Material
This brochure provides a brief overview of TMR which can be shared with patients and physicians to help explain Transmyocardial Revascularization.

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What is TMR

Learn what TMR is and how it can alleviate chest pain caused by ischemic heart disease.

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