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Nefrología (Madrid)

versão On-line ISSN 1989-2284versão impressa ISSN 0211-6995

Resumo

TOVILLAS-MORAN, F. J. et al. Decreased glomerular filtration rate using the Cockgroft-Gaultand MDRD formulas does not always predict cardiovascular morbidity and mortality in hypertensive primary care patients. Nefrología (Madr.) [online]. 2010, vol.30, n.6, pp.653-660. ISSN 1989-2284.

Background: Renal function decrease is associated with cardiovascular morbidity and mortality. The aim was to analyze the association of cardiovascular morbidity and mortality with baseline glomerular filtration rate (GFR), according Cockcroft-Gault and MDRD formulas, with incidence of major adverse cardiovascular events (MACEs) in a cohort of hypertensive individuals followed for 12 years. Methods: We performed a prospective study of a random sample of 223 hypertensive patients free of MACEs followed in an urban Primary Care Center. GFR was estimated using both formulas. MACEs were considered the onset of ischemic heart disease, heart failure, stroke, peripheral vascular disease or cardiovascular death. Data were analyzed using the life-table method and Cox regression modeling. Results: Follow-up median was 10.7 (interquartile range, 6.5-12.1) years. Follow-up was complete in 191 participants (85.7%). The cumulative survival was 64.7% (95% Confidence Interval (CI) 57.9%-71.6%). The incidence of MACEs during the follow-up period was 3.6 (95% CI, 2.7-4.4) per 100 subject-years. The final multivariable model showed that the most predictive variables of MACEs in the study population were the presence of diabetes and the estimation of GFR >60 ml/min/1.73 m2 by MDRD equation. Conclusions: There was a relationship between the occurrence of MACEs and MDRD formula estimated GFR above 60 ml/min/1.73 m2 at study entry, inversely to what expected. C-G formula estimated GFR by was not associated with cardiovascular risk.

Palavras-chave : Hipertensión; Cardiovascular disease; Primary Health Care; Survival Análisis; Glomerular Filtration Rate; Renal Insufficiency.

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