New study examined if the magazine's 50 top-ranked hospitals for cardiovascular care performed better than 3,500 non-ranked hospitals on death rates and hospital readmissions for three cardiovascular conditions, as well as patient satisfaction. Whether hospital rankings by U.S. News & World Report magazine reflect quality of care has been debated. This study examined if the magazine's 50 top-ranked hospitals for cardiovascular care performed better than 3,500 non-ranked hospitals on death rates and hospital readmissions for three cardiovascular conditions, as well as patient satisfaction. Researchers report top-ranked hospitals did have lower 30-day mortality rates for heart attack, heart failure and coronary artery bypass grafting (CABG) and higher patient satisfaction ratings compared with non-ranked hospitals. The discrepancy between readmissions and other measures raises concern that readmissions may not be an adequate metric of hospital care quality. A limitation of the study was that the rankings only include data from Medicare patients.