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  • Title: [Possibilities of achieving target blood pressure in patients with essential hypertension in relation to renal functional status and age].
    Author: Dmitrova TB, Kotovskaia IuV, Kobalava ZhD, Moiseev VS.
    Journal: Ter Arkh; 2002; 74(12):29-33. PubMed ID: 12577836.
    Abstract:
    AIM: To study renal functional changes in patients with essential hypertension (EH) and normal blood creatinine levels during antihypertensive therapy with currently available drugs to achieve blood pressure lower than 140/90 mm Hg. MATERIALS AND METHODS: Renal functional changes were studied in 114 patients with EH and normal blood creatinine levels during antihypertensive therapy aimed at achieving blood pressure lower than 140/90 mm Hg. Glomerular filtration rate (GFR) was calculated by the Cockcroft-Gault formula and blood creatinine levels were measured before and 6, 12, 24, 52 weeks of treatment. RESULTS: Renal dysfunction was detected in 43.9% of the patients as GFR < 80 ml/min in 35.1% and hyperfiltration (GFR > 140 ml/min) in 8.8%. The patients with baseline decreased GFR were older, had a longer history of EH, and lower body-mass index than those with hyperfiltration (p < 0.05). There was a considerable renal functional improvement in patients with baseline decreased GFR and achieved BP < 140/90 mm Hg. Target BP could be achieved only in 20% of the patients with hyperfiltration. Antihypertensive therapy caused reduced hyperfiltration in these patients. In patients aged over 60 years who had a baseline GFR < 80 ml/min, achievement of target BP also promoted renal functional improvement. CONCLUSION: Most patients with EH and normal blood creatinine levels have renal dysfunction. Normalization of BP substantially improves renal functional parameters irrespective of age.
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