NEW YORK (Reuters Health) – High blood levels of the amino acid homocysteine increase the odds that heart arteries will re-narrow after the artery-clearing procedure angioplasty, study findings suggest.
When an artery that delivers blood to the heart becomes blocked or narrowed, which can lead to a heart attack, one way to restore normal blood flow is a procedure called angioplasty. During this treatment, a balloon-tipped catheter is threaded into a blocked artery and inflated, flattening fatty plaques against the artery wall. Eventually, however, cleared arteries often become narrowed or blocked again
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