ACUTE RENAL FAILURE IN TERM NEWBORN FOLLOWING PERINATAL ASPHYXIA
Introduction: Perinatal asphyxia (PA) results in hypoxic damage to almost all organs, kidneys being most frequently (40%) affected.
Objectives: was to determine the incidence of acute renal failure (ARF) in term neonates with PA and to correlate it with severity of hypoxic ischemic encephalopathy (HIE).
Materials and methods: This prospective study of 54 term neonates with PA was performed in tertiary level neonatal intensive care unit at Pediatric Clinic Sarajevo from June 2014 to June 2016. The severe PA was defined as 5. minute Apgar score <3 and moderate PA as 5. minute Apgar score 4-6. Criteria adopted for ARF were serum creatinine >1.5 mg/dl (>133 micromol/L) on 3rd day of life or urine output < 0.5 ml / kg / hr for >6 hrs beyond 24 hrs of life.
Results. Out of 54 neonates with PA, 22 (40.74 %) had ARF. Most of them (63.6%) had non-oliguric ARF with mean renal output of 2.2 ± 0.5 ml/kg/h. Eight neonates (36.4%) had oliguric ARF with mean renal output of 0.35 ± 0.6 ml/kg/h. Most of the neonates with oliguric ARF (63.4%) had severe PA while in those with non-oliguric ARF moderate PA was predominant. ARF was highest in the neonates with HIE III (85.71 %). (Figure 1.). This showed that as HIE stage progressed, more renal dysfunction was seen in asphyxiated babies and this difference in incidence was found statistically significant (p<0.05).
Conclusions. Neonates with severe PA had more frequent ARF and the predominant type of renal involvement was non oliguric. Neonates with HIE stage II and III had significantly higher incidence of ARF.
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