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[Microalbuminuria as predictor of atherosclerotic cardiovascular disease in IDDM]
T Deckert1, H Yokoyama, E R Mathiesen
1Steno Diabetes Center, Gentofte.
Abstract:
The aim of this follow-up study was to assess whether slightly elevated urinary albumin excretion, i.e., microalbuminuria, precedes development of atherosclerotic vascular disease in IDDM. Out of 259 IDDM-patients 30 developed vascular disease during 2,457 person-years. Microalbuminuria was significantly predictive of vascular disease (hazard ratio (95% confidence interval) 1.06 (1.02-1.18) per 5 mg/24 hours increase in urinary albumin excretion; p = 0.002). The predictive effect was independent of age, sex, blood pressure, tobacco smoking, serum concentrations of total-cholesterol, HDL-cholesterol, sialic acid, and von Willebrand factor, and of haemoglobin A1c, insulin dose, diabetes duration, and diabetic nephropathy (hazard ratio (95% confidence interval) 1.04 (1.01-1.08) per 5 mg/24 hours increase in urinary albumin excretion; p = 0.03). It is concluded that slightly elevated urinary albumin excretion is an independent predictor of atherosclerotic vascular disease in insulin-dependent diabetes mellitus.
Insights
Microalbuminuria, or slightly elevated urinary albumin, predicts atherosclerotic vascular disease in insulin-dependent diabetes mellitus (IDDM). This finding holds true independently of other known risk factors.
Area of Science:
- Cardiology
- Nephrology
- Endocrinology
Context:
- Insulin-dependent diabetes mellitus (IDDM) patients are at high risk for atherosclerotic vascular disease.
- Early identification of individuals with IDDM at risk for vascular complications is crucial for timely intervention.
- Microalbuminuria is a known marker for kidney damage in diabetes, but its role in predicting broader vascular disease requires further investigation.
Purpose:
- To determine if microalbuminuria precedes the development of atherosclerotic vascular disease in patients with IDDM.
- To assess the predictive value of microalbuminuria for vascular disease, independent of other established risk factors.
Summary:
- A 2,457 person-year follow-up study of 259 IDDM patients found that 30 developed vascular disease.
- Microalbuminuria significantly predicted vascular disease (HR 1.06, 95% CI 1.02-1.18 per 5 mg/24h increase; p=0.002).
- This predictive association remained significant even after adjusting for age, sex, blood pressure, lipids, smoking, HbA1c, and diabetes duration (HR 1.04, 95% CI 1.01-1.08; p=0.03).
Impact:
- Microalbuminuria serves as an independent predictor of atherosclerotic vascular disease in individuals with IDDM.
- This finding highlights the importance of monitoring urinary albumin excretion as an early indicator of cardiovascular risk in diabetic patients.
- Early detection of microalbuminuria may allow for intensified management strategies to prevent vascular complications in IDDM.