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Rev. chil. infectol ; 34(1): 81-86, feb. 2017. ilus, graf
Article in Spanish | LILACS | ID: biblio-844450

ABSTRACT

Acute renal failure (ARF) requiring hemodialysis is not common among patients affected by influenza. We report two unvaccinated adult patients with smoking habit, which were admitted with severe influenza A H1N1pdm09 that evolved with shock and required mechanical ventilation. Both patients developed progressive renal failure with oliguria/anuria, associated with urinary of inflammatory sediment with proteinuria, microhematuria and in one case also with hypocomplementemia, suggesting acute glomerulonephritis. Renal replacement therapy (RRT) was required in both cases. In one patient, who died of late complications, sequencing of the HA1 segment revealed the previously described D222N mutation associated to severe cases. ARF with RRT appears to be an uncommon complication of patients hospitalized for influenza A H1N1pdm09 and may be secondary to acute glomerulonephritis.


La insuficiencia renal aguda (IRA) que requiere hemodiálisis no es una complicación común entre los pacientes afectados por influenza. Se comunican los casos clínicos de dos pacientes adultos fumadores no vacunados, que se internaron por influenza A H1N1pdm09 grave por shock y necesidad de ventilación mecánica. Ambos desarrollaron una falla renal progresiva con oliguria/anuria, asociada a un sedimento de orina inflamatorio con proteinuria, microhematuria y en un caso además con hipocomplementemia, sugiriendo una glomerulonefritis aguda. Se requirió terapia de reemplazo renal (TRR) en ambos casos. En uno de los pacientes, que falleció por complicaciones tardías, la secuenciación del segmento HA1 reveló la mutación D222N previamente descrita en casos graves. La IRA con TRR parece ser una complicación infrecuente de los pacientes ingresados por influenza A H1N1pdm09 y puede ser secundaria a una glomerulonefritis aguda.


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Influenza, Human/complications , Influenza A Virus, H1N1 Subtype , Acute Kidney Injury/virology , Glomerulonephritis/virology , Acute Disease , Renal Dialysis , Acute Kidney Injury/therapy , Glomerulonephritis/therapy
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