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The TMR laser is a new surgical tool that is used alone or in addition to bypass surgery to alleviate a patient's chest pain. The technique uses a laser to create tiny channels in the heart muscle that revascularize, or increase blood flow to the damaged area of the heart.

Typically, when blood supply is restricted in an area of the heart, a heart attack or other serious consequence may result. The channels created by TMR laser provide a new route for blood to reach the affected area of the heart muscle.

New studies have been conducted on a national scale to evaluate a new form of the laser treatment called percutaneous transmyocardiac laser revascularization, or PTMR. This procedure is performed without surgery in the cath lab and is currently being reviewed by the FDA for approval.