Diabetic nephropathy: an observational study on patients attending a joint diabetes renal clinic

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Abstract
Diabetic nephropathy is a major cause of renal failure, accounting for 20% of patients starting dialysis. In clinical trials, effective blood-pressure control, especially by angiotensin-converting-enzyme inhibitors (ACEIs), retards the rate of progression of renal failure substantially. We examined these effects in clinical practice by surveying patients at a joint diabetes renal clinic at Glasgow Royal Infirmary from 1989 to 1995. We examined the relationship between progression of diabetic nephropathy, mean arterial pressure (MAP), and the use of ACEIs. The average MAP of the whole group of patients fell by 7%, the urine albumin:creatinine ratio fell by 29%, and the rate of progression as measured by the slope of reciprocal of serum creatinine with time (l/mumol/day) was slowed, from -4.59 to -2.76. This is equal to delaying the necessity for dialysis by about 2 years. The joint clinic met its aim and was cost-effective.

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