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"Dear Kidney's, thanks for all you do" STORY BY

Karen Krakower

When Grammy Award-winning soul singer Barry White died of kidney failure July 4, his death focused attention on the dangers of kidney disease.

About 10 million Americans have chronic kidney disease, and another 20 million are at increased risk because they have diabetes, high blood pressure or other risk factors. According to the National Vital Statistics Report, kidney disease causes more than 39,000 deaths annually in the United States.

Research by University of Texas Medical School at Houston physician Austin Stack, emphasizes the importance of early diagnosis and treatment. Over one third of patients with end-stage renal disease in the U.S. see a nephrologist, or kidney specialist, for the first time within four months of starting dialysis. This greatly increases risk of death, according to Stack’s study, which was published in the February issue of the American Journal of Kidney Disease.

Early Referral Key to Survival

Within the first year of dialysis, patients whose first visit to a nephrologist was less than four months before they started dialysis had a 68 percent higher risk of death than those whose first visit was earlier.

Patients with early treatment – who saw a nephrologist at least twice in the year before starting dialysis – had a 20 percent lower risk of death than those without early treatment.

“Early referral to a nephrologist provides an enormous opportunity for managing the complications of chronic kidney disease and ensures optimal preparation for patients who require dialysis or kidney transplant,” said Stack, an assistant professor of medicine and a clinical epidemiologist in the Division of Nephrology and Hypertension at the Medical School.

“The study shows for the first time in a nationally representative sample a clear association between early and frequent nephrology contact and improved patient survival,” he said. Stack based his findings on an analysis of 2,264 patients from a national study of the U.S. Renal Data System.

“Two” Reasons to See a Specialist

Seeing a specialist early in the course of kidney disease allows for more effective treatment of hypertension, anemia and other related medical conditions, such as diabetes, coronary artery disease and congestive heart failure. In some cases, he said, declining kidney function can be halted, delayed or even reversed, avoiding the need for dialysis or transplant.

A new National Kidney Disease Education Program, under the auspices of the National Institutes of Health, is encouraging people in high-risk categories – those with hypertension, diabetes or a relative with kidney problems – to ask their physicians to be tested. Early efforts are targeted at black Americans, who are four times more likely than others to suffer kidney failure.

UPDATED: 10-02-2003