Transmyocardial Revascularization

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Transmyocardial revascularization (TMR) is a highly specialized procedure to treat patients with severe coronary artery disease and angina who cannot undergo standard coronary artery bypass grafting.

At the University of Maryland Heart and Vascular Center, our heart specialists have the experience, expertise and resources to perform this complex procedure.

What is Transmyocardial Revascularization (TMR)?

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TMR is a surgical procedure that uses a laser to make “channels,” or small holes, directly into the heart muscle. The outside of the heart muscle seals up immediately. TMR can reduce angina (severe pain the chest, neck, jaw and shoulders) and improve the quality of life in patients with coronary artery disease.

Here’s how it works:

  1. Our team creates channels through the heart muscle, using a laser.
  2. As the channels heal, they stimulate the creation of new small vessels or capillaries. This process is called angiogenesis.
  3. In some cases, we may do a conventional coronary bypass surgery in combination with TMR. Learn more about coronary artery bypass grafting
  4. During the next few weeks or months, your angina will improve or disappear.

Read more about our expertise with coronary revascularization.