Study participants with chronic kidney disease who also had diabetes, systolic high blood pressure, or left ventricular hypertrophy, or were smokers or exhibited low physical activity had an increased risk of death from cardiovascular causes. However, for these patients, emerging risk factors such as elevated levels of C-reactive protein, fibrinogen, and the blood clotting protein factor VIIIc were not as strongly associated with greater risk of cardiovascular death.
"The message from this study is clear: to reduce heart disease and stroke deaths in older people with chronic kidney disease, we need to target and control traditional risk factors," said Teri Manolio, M.D., Ph.D., director of NHLBI's Epidemiology and Biometry Program and a study co-author. Manolio added that many proven, effective interventions are available for reducing these risk factors including adequate control of high blood glucose and high blood pressure, increasing physical activity, and stopping smoking.
Chronic kidney disease is a known, controllable risk factor for heart disease and its incidence is on the rise. An estimated 4.5 percent of adults have physiological evidence of chronic kidney disease. The rate of kidney failure in the U.S. has doubled in the past decade. Chronic kidney disease was defined in the study by an estimated glomerular filtration rate (GFR) of less than 60ml/min/1.732, a measure of how well the kidneys are filtering waste from blood. The study defined cardiovascular mortality as death from heart disease, heart failure, per
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12-Apr-2005