http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. Elderly patients with symptoms of heart failure and increased concentrations in the blood of the biomarker copeptin, or a combination of elevated concentrations of copeptin and the biomarker NT-proBNP, had an associated increased risk of all-cause death, according to a study in the May 25 issue of JAMA. http://medicalxpress.com/news/2011-05-biomarkers-death-elderly-patients-heart.html Cardiology Tue, 24 May 2011 16:48:45 EST news225474503