MercyOne Des Moines Medical Center has been named one of the nation’s 50 Top Cardiovascular Hospitals by IBM Watson Health. The study spotlights the top-performing cardiovascular hospitals in the U.S. based on a scorecard of publicly available clinical, operational and patient satisfaction metrics and data. Compared with non-winning cardiovascular hospitals, this year’s winners had significantly higher inpatient survival rates, fewer patients with complications and shorter average lengths of stay, according to the report. The study, conducted annually since 1998, is part of the IBM Watson Health 100 Top Hospitals program. “To be recognized as one of the top 50 cardiovascular hospitals in the country is quite an honor and something to be very proud of,” said Dr. Mark Tannenbaum, interventional cardiologist and chief physician officer of MercyOne Iowa Heart Center.