We observed an association between rotavirus diarrhoea and hypocalcaem
ia in several patients and therefore started a prospective evaluation
with measurement of calcium levels in all patients with rotavirus infe
ction during a period of 8 months. We report on 54 infants with rotavi
rus gastro-enteritis. Serum concentrations of sodium, potassium, and t
otal and ionized calcium were measured on admission. If hypocalcaemia
was detected, total and ionized calcium were measured every day until
recovery. Calcium was supplemented as calcium gluconate which was adde
d to milk. Out of 54 newborns with rotavirus gastro-enteritis, 20 deve
loped hypocalcaemia. all these newborns had severe diarrhoea. Seven in
fants were admitted because of convulsions, but EEG and ultrasonograph
ic examination of the brain revealed no abnormalities. Once the infant
s' clinical condition and the consistency and frequency of the stool h
ad improved, calcium concentrations increased and remained within the
reference range without supplementation. Conclusion Rotavirus gastro-e
nteritis seems to be a cause of neonatal hypocalcaemia.