Key result
Mild renal dysfunction in hypertension linked to ~20% greater target organ damage risk per 10 ml/min clearance drop.
Why the study?
Mild renal dysfunction is associated with higher cardiovascular morbidity and mortality in primary hypertension, but its relationship with target organ damage is not fully characterized.
Is mild renal dysfunction associated with increased target organ damage in untreated patients with primary hypertension?
Population
934 untreated middle-aged patients with primary hypertension and normal serum creatinine
Comparison
Mild renal dysfunction vs normal renal function
Design
Cross-sectional cohort study
Authors
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Mild renal dysfunction signals higher TOD burden in hypertension; supports integrated risk models but leaves open prospective validation and intervention trials.
Cohort (n=934)
Is mild renal dysfunction associated with increased target organ damage in untreated patients with primary hypertension?
Effect estimate: 20% risk increase per 10 ml/min decrease in creatinine clearance
Mild renal dysfunction is independently associated with preclinical end-organ damage in untreated patients with primary hypertension, highlighting its utility as a marker for cardiovascular risk.
Leoncini et al. (2004) conducted a cohort in Primary hypertension (n=934). Mild renal dysfunction (decreased creatinine clearance and/or increased urinary albumin excretion) vs. Normal renal function was evaluated on Target organ damage (left ventricular hypertrophy, retinal vascular changes, and carotid atherosclerosis) (20% risk increase per 10 ml/min decrease in creatinine clearance). Mild renal dysfunction in primary hypertension was associated with preclinical target organ damage, with risk increasing by 20% for each 10 ml/min decrease in creatinine clearance.
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