Neonatal Nephrocalcinosis and Diagnostic Implications
Keywords:Nephrocalcinosis, neonate, ultrasound.
Nephrocalcinosis and its outcome has been widely studied in the preterm population. There is a paucity of data regarding nephrocalcinosis in term babies. Prospective case series, in which ten neonates were included in the study from November 2013 and April 2014. All neonates with nephrocalci nosis diagnosed by ultrasound of kidney, ureters, bladder (KUB) done antenatally or during evaluation for urinary tract infection in neonates with hyperbilirubinemia/sepsis were included. All preterm neonates and neonates with congenital urinary tract anamolies were excluded from this case series. Cases were followed to know the outcome of the condition by follow-up ultrasonography. Follow-up ultrasound kidneys after 2-4 weeks revealed no evidence of nephrocalcinosis in majority of the cases. In one case, hypocitrateuria was documented. Hence, nephrocalcinosis is a transient phe- nomenon but needs close monitoring with follow-up scans.
In this case series we investigated nephrocalcinosis with early follow-up and ultrasound of kidneys to compare the baseline findings.This helped us in defining absolute outcome to the parents in case of neonatal nephrocalcinosis. Moreover, it helped our fellows in making timely diagnosis and proper counselling.