Learning Center

Now in Medline / Index Medicus & ISI

Discussion Forums
Meeting Highlights
Lecture Presentations
Surgical Video Library
Audio Interviews
Learning Center
For Authors
Editorial Board

21st World Congress of the World Society of Cardio-Thoracic Surgeons

Transmyocardial Revascularization (TMR)

Cesar Nahas, MD

Baylor College of Medicine

Transmyocardial Revascularization (TMR) is a surgical procedure which uses a low power laser to create small passageways or channels through the heart muscle. The potential benefits of the procedure are the reduction or elimination of angina (chest pain), increased exercise tolerance, and improved quality of life.It is believed that these channels may allow oxygen rich blood to flow from the inside of the heart to regions of the heart muscle that do not have normal blood flow. The precise mechanism though is not yet clearly understood.

TMR surgery is performed under general anesthesia. After an incision is made in the chest, the TMR System will be used to create 15-30 channels from the outside of your heart to the inside of your heart. The channels will be made in the part of the heart that is not will supplied with blood. The TMR procedure itself will take 2-3 hours and the postoperative care will be the same as for any cardiac surgery. Patients can expect to stay in the hospital for 4-6 days after the surgery.

TMR is a new procedure, that is why it is being studied under FDA regulations. Several studies in many centers across the US are being conducted. Also, TMR is being studied with a number of different lasers, all in all, over 1,000 patients have been treated with TMR worldwide. In the US patients that have been treated with TMR are usually part of a study. If you suffer from severe angina, especially if you have been determined not to be a candidate for coronary bypass surgery or coronary balloon angioplasty, you may be a candidate for TMR.

Return to main Learning Center page.


ISSN#: 1522-6662
Copyright 2012 Forum Multimedia Publishing, LLC. All rights reserved.

The material available at this site is for educational purposes only and is NOT intended for any diagnostic, clinically related, or other purpose. Forum Multimedia Publishing, LLC, assumes no responsibility for any use or misuse of this material and makes no warranty or representation of any kind with respect to the material available at this site.