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A new study shows that even micro heart attacks are a major problem

2014-03-31
(Press-News.org) MINNEAPOLIS, MN – March 29, 2014 – Researchers at the Minneapolis Heart Institute at Abbott Northwestern Hospital have found that cardiac magnetic resonance (CMR) imaging may help doctors better identify which patients with mild heart disease are likely to develop more serious heart problems long term. CMR imaging provides supporting information to guide treatment decisions and help doctors provide targeted care for patients at highest risk. The research, led by Minneapolis Heart Institute Foundation Research Fellow Naohiko Nemoto, MD, will be presented at the American College of Cardiology (ACC) meeting in Washington, DC today.

To understand the long-term impact of a mild heart attack, researchers retrospectively analyzed CMR imaging results for 179 patients who were admitted with symptoms of heart disease, who tested positive for elevated troponin (a key indicator of damage to the heart muscle), and who had partial blockage of one or more arteries in the heart (as shown by invasive angiography). The patients were divided into two groups based on the CMR analysis: those who had experienced a mild myocardial infarction, or heart attack (the MI group) and those who had not (the non-MI group).

The results showed that patients who had a mild heart attack (the MI group) were nearly three times as likely to experience a major cardiac event (like a heart attack, bypass surgery, or stroke) over the long-term as those in the non-MI group. Additionally, the most frequent cause of death for individuals in the MI group was heart-related. "Using CMR acutely, when an individual is first admitted with heart-attack-like symptoms, provides unique information that can guide treatment decisions and aid in prognosis," states Robert Schwartz, MD, FACC, FAHA, who will present the team's research at ACC. "Our research shows that secondary prevention is vitally important for patients who've experienced mild heart attacks, as determined by acute CMR analysis." INFORMATION: About the Minneapolis Heart Institute Foundation The Minneapolis Heart Institute Foundation is dedicated to improving people's lives through the highest quality cardiovascular research and education. Scientific Innovation and Research — Publishing more than 120 peer-reviewed studies each year, MHIF is a recognized research leader in the broadest range of cardiovascular medicine. Each year, cardiologists and hospitals around the world adopt MHIF protocols to save lives and improve patient care. Education and Outreach — Research shows that modifying specific health behaviors can significantly reduce the risk of developing heart disease. Through community programs, screenings and presentations, MHIF educates people of all walks of life about heart health. The goal of the Foundation's community outreach is to increase personal awareness of risk factors and provide the tools necessary to help people pursue heart- healthy lifestyles. About the Minneapolis Heart Institute® The Minneapolis Heart Institute® is recognized internationally as one of the world's leading providers of heart and vascular care. This state-of-the-art facility combines the finest in personalized patient care with sophisticated technology in a unique, family-oriented environment. The Institute's programs, a number of which are conducted in conjunction with Abbott Northwestern Hospital, address the full range of heart and vascular health needs: prevention, diagnosis, treatment and rehabilitation.


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[Press-News.org] A new study shows that even micro heart attacks are a major problem