Relationship between autonomic function and progression of renal disease in diabetic proteinuria: clinical correlations and implications for blood pressure control

American Journal of Hypertension
L A WeinrauchJ A D'Elia

Abstract

The objective of this study was to test the relationship between neurologic and microvascular complications of type 1 diabetes mellitus. It was hypothesized that the mechanisms operative in autonomic dysfunction seen in diabetic patients with microangiopathy play a role in the rapidity of progression to renal failure. Twenty-six type 1 diabetic patients with proteinuria were studied with computerized monitoring of heart rate variation during timed ventilation, assumption of upright posture, and Valsalva maneuver and with 24-h ambulatory blood pressure monitoring at baseline. Renal function was evaluated over the ensuing 12 months of intensive insulin therapy. Blood pressure was treated so as to achieve consistent 24-h readings < 140/90 mm Hg. Angiotensin converting enzyme inhibitors were the preferred antihypertensive agents. Serial serum creatinine concentrations were compared using repeated measures analysis of variance. Over 12 months there were no significant serum creatinine changes for any autonomic test group with normal results at baseline. Groups with abnormal autonomic results at baseline demonstrated statistically significant increases in serum creatinine over 12 months compared to their baseline. Of the tests, Valsa...Continue Reading

Citations

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