Use of beta-blockers for certain type of heart failure linked with improved survival

(The JAMA Network Journals) Lars H. Lund, M.D., Ph.D., of the Karolinska Institutet, Stockholm, Sweden, and colleagues conducted a study to examine whether beta-blockers are associated with reduced mortality in heart failure patients with preserved ejection fraction (a measure of how well the left ventricle of the heart pumps with each contraction).The study appears in the Nov. 19 issue of JAMA, a cardiovascular disease theme issue.