Objective: to analyze the influence of early hemodialysis on the outcome of acute septic kidney injury. Method: this is an observational, analytical, prospective study with patients diagnosed with acute septic kidney injury on hemodialysis. A questionnaire for data collection was used as an instrument. We used the Shapiro-Wilk, nonparametric Kruskal-Wallis, Mann-Whitney U, Student t and chi-square tests for analysis. Results: of the 40 patients analyzed, 60% were male, with a mean age of 55 (±16.8) years, and length of hospital stay of 43 (±26.2) days. When separating patients undergoing early and late hemodialysis into two groups, an increase in serum creatinine (p = 0.001) was observed in those who underwent late hemodialysis, however, creatinine ≥ 4mg/dl is one of the characteristics of this group. In both groups, there was a high mortality: 62.5% (10) in the early hemodialysis group and 41.7% (10) in the late hemodialysis group, with vasopressor use (p = 0.001) being the main risk factor. Conclusion: early onset of hemodialysis in acute septic kidney injury based on KDIGO definitions did not influence the outcome. However, vasopressor use associated with hemodialysis in septic patients was a predictor of death.
RESUMO Objetivo: analisar a influência da hemodiálise precoce no desfecho da lesão renal aguda séptica. Método: estudo observacional, analítico, prospectivo, com pacientes diagnosticados com lesão renal aguda séptica em hemodiálise. Foi utilizado como instrumento um questionário para coleta de dados. Utilizaram-se para análise os testes Shapiro-Wilk, o não paramétrico de Kruskal-Wallis, U de Mann-Whitney, t de Student e do Qui-Quadrado. Resultados: dos 40 pacientes analisados, 60% eram do sexo masculino, com média de 55 (±16,8) anos, e tempo de internação hospitalar de 43 (±26,2) dias. Ao separar em dois grupos, pacientes submetidos à hemodiálise precoce e à hemodiálise tardia, observou-se naqueles que realizaram tardiamente a hemodiálise um aumento de creatinina sérica (p = 0,001), entretanto a creatinina ≥ 4mg/dl é umas das características desse grupo. Em ambos os grupos, houve uma alta mortalidade: 62,5% (10) no grupo de hemodiálise precoce e 41,7% (10) no grupo de hemodiálise tardia, sendo o uso de vasopressor (p = 0,001) o principal fator de risco. Conclusão o início precoce da hemodiálise na lesão renal aguda séptica com base nas definições do KDIGO não influenciou no desfecho. Contudo, o uso do vasopressor associado à hemodiálise em pacientes sépticos foi um fator preditor ao óbito.
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