After the heart attack: Injectable gels could prevent future heart failure

During a heart attack, clots or narrowed arteries block blood flow, harming or killing cells in the heart. But damage doesn't end after the crushing pain subsides. Instead, the heart's walls thin out, the organ becomes enlarged, and scar tissue forms. These changes can cause heart failure. Scientists now report they have developed injectable gels to prevent this damage. Read more and watch the video at ACS News.