Impaired kidney function ups death risks for elderlyJanuary 21st, 2009 - 4:19 pm ICT by IANS
Washington, Jan 21 (IANS) Seniors with damaged kidneys are more likely to suffer heart failure, stroke and other causes of mortality, says a new study. These findings indicate that the elderly with impaired kidneys should make lifestyle changes, particularly if they are at risk from high blood cholesterol and high blood pressure to avoid developing cardiovascular problems.
Most countries face increasing rates of cardiovascular disease and it is the single leading cause of death in the US and many European countries.
It has already been established that young and middle-aged people with a reduced estimated glomerular filtration rate (eGFR) - the measurement of the movement of waste and excess fluid through the kidneys - are more likely to develop cardiovascular disease than those with healthy kidneys.
To establish how at risk elderly people with impaired kidney function were, Ian Ford of the University of Glasgow and colleagues analysed existing data from a three-year clinical trial conducted among men and women aged between 70 and 82 in Scotland, Ireland and the Netherlands.
The trial - known as the Prospective Study of Pravastatin in the Elderly at Risk, or PROSPER trial - had been designed to test the effect of the statin pravastatin on the development of cardiovascular disease.
Dividing the trial participants into four groups based on their eGFR at the start of the study, Ford and colleagues established that the patients with a low eGFR - those with the most impaired kidney function - were twice as likely to die from any cause as those with healthier kidneys.
They also established that the patients with such kidneys were three times more likely to have non-fatal heart failure or disease and were more likely to die as a result of heart disease or failure, said a PLoS Medicine release.
The data also showed that treatment with the drug pravastatin reduced the number of fatal and non-fatal heart problems more effectively amongst the group of patients with the most damaged kidneys - although the researchers warn that this finding is statistically borderline.
The study is scheduled for publication next week in the open access journal PLoS Medicine.
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Tags: cardiovascular problems, causes of mortality, estimated glomerular filtration rate, excess fluid, fatal heart, glomerular filtration rate, heart failure, heart problems, high blood cholesterol, high blood pressure, kidney function, kidneys, leading cause of death, lifestyle changes, plos medicine, pravastatin, prospective study, scotland ireland, trial participants, university of glasgow