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Individualized Care Needed for Diabetic Patients With Kidney Failure

by Kathy Jones on August 1, 2010 at 3:04 PM
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 Individualized Care Needed for Diabetic Patients With Kidney Failure

New research indicates that aggressive blood sugar control does not improve survival in diabetic patients with kidney failure.

The findings, appearing in an upcoming issue of the Clinical Journal of the American Society Nephrology (CJASN), suggest that physicians should drop one-size-fits-all approach to blood sugar control and individualize blood sugar targets for patients.

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Uncontrolled blood sugar levels can cause serious health problems for diabetic patients with kidney failure; however, studies provide conflicting results on the benefits and risks of aggressive blood sugar control in these individuals.

By studying 24,875 dialysis patients for a maximum of three years of follow-up, Mark Williams, MD (Joslin Diabetes Center) and his colleagues found that only sustained extremes-either high or low-in blood sugar levels increased patients' risk of dying prematurely.
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Type 2 diabetes patients with haemoglobin A1c levels (a measure of average blood sugar levels) greater 11.0 per cent were particularly at risk, with a 21 per cent increased likelihood of dying during the study.

In the small (5.5 per cent) subgroup of patients with type 1 diabetes, those with hemoglobin A1c levels greater than 9 per cent had a 52 per cent increased risk of dying during the study.

"In the absence of randomized, controlled trials, these results suggest that aggressive [blood sugar] control cannot be routinely recommended for all diabetic hemodialysis patients on the basis of reducing mortality risk," the authors concluded. They encouraged physicians who treat diabetic patients with kidney failure to individualize blood sugar targets based on the potential risks and benefits for each patient.

In reviewing the results of this study in an accompanying editorial, Joachim Ix, MD (University of California, San Diego and Veterans Affairs San Diego Healthcare System) noted that "to date, there are no data available from randomised clinical trials targeting different hemoglobin A1c levels and powered for cardiovascular events or mortality in end-stage renal disease populations.

In their absence, the marked statistical power and elegant analyses provided by these... investigators provide useful insights." He agreed that individualized haemoglobin A1c targets might be more appropriate than a one-size-fits-all target.

Source: ANI
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