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J. bras. nefrol ; 34(1): 68-75, jan.-fev.-mar. 2012. graf, tab
Article in Portuguese | LILACS | ID: lil-623358

ABSTRACT

INTRODUÇÃO: A doença renal crônica (DRC) é muito prevalente e representa um importante problema de saúde pública. O maior conhecimento dos fatores de risco relacionados à progressão da DRC permite adotar estratégias terapêuticas que podem alterar o curso natural da doença. OBJETIVO: Avaliar o impacto de variáveis clínicas e laboratoriais à admissão nos desfechos de óbito e início de terapia renal substitutiva (TRS). MÉTODOS: Estudo de coorte retrospectiva, composta de 211 pacientes adultos com DRC nos estágios 3-5 tratados, acompanhados por 56,6 ± 34,5 meses. RESULTADOS: A idade média dos pacientes foi de 65,4 ± 15,1 anos, sendo 63,5% com > 60 anos. As principais etiologias de DRC foram nefroesclerose hipertensiva (29%) e doença renal diabética (DRD) (17%). A maioria dos pacientes encontrava-se no estágio 4 da DRC (47,3%). A perda média anual de taxa de filtração glomerular (TFG) foi 0,6 ± 2,5 mL/min/1,73 m² (mediana 0,7 mL/min/1,73 m²). Após os ajustes para as variáveis demográficas, clínicas e laboratoriais, concluiu-se que apresentar DRD [risco relativo (RR) 4,4; intervalo de confiança (IC) 95%, 1,47-13,2; p = 0,008] foi preditor de TRS e a idade (RR 1,09; IC 95%, 1,04-1,15; p < 0,0001) e o não tratamento com bloqueador do receptor da angiotensina (BRA) (RR 4,18; IC 95%, 1,34-12,9; p = 0,01) foram preditores de óbito. A sobrevida renal e a geral dos pacientes foram de 70,9% e 68,6%, respectivamente. CONCLUSÃO: Neste estudo, os pacientes com DRC nos estágios 3-5 tratados conservadoramente apresentaram estabilização funcional e baixa mortalidade, desfechos associados à DRD, idade e não tratamento com BRA.


INTRODUCTION: Chronic kidney disease (CKD) is a very common condition that has become a public health issue. Knowing more about risk factors associated with the progression of CKD allows therapeutic interventions that may change the natural course of the disease. OBJECTIVE: To evaluate the impact of clinical and laboratory variables at admission on the outcomes death and need for renal replacement therapy (RRT). METHODS: A retrospective cohort study comprised of 211 adult patients with stages 3-5 CKD, followed-up for 56.6 ± 34.5 months. RESULTS: Mean age of patients was 65.4 ± 15.1 years and 63.5% were > 60 years. The main causes of CKD were hypertensive nephrosclerosis (29%) and diabetic kidney disease (DKD) (17%). Most patients (47.3%) were on stage 4 CKD. The mean annual loss of glomerular filtration rate (GFR) was 0.6 ± 2.5 mL/min/1.73 m² (median 0.77 mL/min/1.73 m²) After the adjustments for demographic, clinical and laboratory variables, DKD [relative risk (RR) 4.4; 95% confidence interval (CI), 1.47 to 13.2; p = 0.008] was predictive of RRT; age (RR 1.09; 95% CI, 1.04 to 1.15; p < 0.0001) and the non-treatment with angiotensin receptor blocker (ARB) (RR 4.18, 95% CI, 1.34 to 12.9; p = 0.01) were predictors of death. Renal and patient survival rates were 70.9% and 68.6%, respectively. CONCLUSION: In this study, patients with stage 3-5 CKD treated conservatively showed stabilization of renal function and low mortality, which were impacted by DKD, age and to not using ARB, respectively.


Subject(s)
Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Kidney Failure, Chronic/diagnosis , Clinical Laboratory Techniques , Cohort Studies , Disease Progression , Kidney Failure, Chronic/therapy , Renal Dialysis , Retrospective Studies , Risk Factors
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