Predisposing factors contributing to the development of renal dysfunction in acute infectious diarrhea associated with hemocolitis (AIDH)

Outcomes of severe variants of acute infectious diarrhea in children with acute renal injury/failure (ARI/ARF) remain unsatisfactory, and mortality reaches 70% and more. ARI/ ARF therapy requires high material costs, which represent significant burden on health financing systems. It makes us consider AFR as one of the most important medical and social problems.

The aim of our study was to investigate predisposing factors contributing to the development of renal dysfunction in acute infectious diarrhea associated with hemocolitis (AIDH), as well as to study the relationship of the developed renal dysfunction with the severity of endogenous intoxication, damage of vascular endothelium and hemostasis system.

We examined 60 sick children with AIDH, divided into two groups: with ARF and without kidney pathology.

Susceptibility to ARI/ARF in severe forms of AIDH is mediated by early childhood (up to 3 years in 89,5% of patients), artificial and mixed feeding (in 52,6% and 36,8% of children respectively), pathology of pregnancy in the first trimester, mother diseases during pregnancy (84,2%) and the late admission to hospital (89,5%) on the 4,9±0,2 day of the disease, i/m administration of furosemide without volume circulating blood restoration, i/m administration of nephrotoxic antibacterial medicines. Shigella spp. and Escherichia coli as etiologic factors of diarrhea in 42,1% and 47,4% of cases respectively. Thus due these parameters we can predict the loss of kidneys adaptation ability in diseases with severe course including acute infectious diarrheas.

Interrelationships between elevation of the number of antigen binding lymphocytes to tissue antigens of vascular endothelium up to 8,1±0,6% in children with ARF and development of hemorrhagic syndrome (decrease of PTI to 72,5%) and intensity of endogenic intoxication (average molecular peptides up to 9,7±0,6 g/l) and worsening of AFR signs were established.

Thus, it was found that AKI most often develops when rehydration therapy is started late or inferiorly performed, when nephrotoxic antibiotics and loop diuretics are prescribed without circulating blood volume (CBV) compensation and is accompanied by an increase in the degree of endogenous intoxication and vascular endothelial damage. 

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