Incidencia de microcefalia neonatal en el Hospital Cayetano Heredia de Lima, 2016 – 2017

Objective: To determine the incidence of neonatal microcephaly in the Hospital Cayetano Heredia, throughout a well-defined period. Material and Methods: Microcephaly was determined by a cephalic perimeter lower than the third percentile for age and sex. Reported records of the Hospital’s Perinatal Computer System between January 1^st, 2016 and December 31^st, 2017, were used. Fenton growth chart’s parameters were used to determine the limits of normality. Results: A total of 416 cases of neonatal microcephaly were registered, a general rate of 53.4 per 1,000 live births, up to 185 per 1000 live births in preterm infants (<37 weeks), with higher figures among males. Conclusions: A high incidence rate of microcephaly was found, probably higher in preterm infants and due to multiple causes. Observational biases cannot be discarded.