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Physical Growth and Neurodevelopment of a Cohort of Children after 3.5 Years of Follow-up from Mothers with Zika Infection during Pregnancy—Third Report of the ZIKERNCOL Study
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Abstract
Introduction
In utero Zika virus (ZIKV) exposure has been related to a group of congenital structural abnormalities called the congenital Zika syndrome, which also has been related to neurodevelopment alterations even in normocephalic children. Physical growth has been less explored, and delayed growth and malnutrition have been reported.
Objective
The objective of this study is to describe the growth and neurodevelopment features of normocephalic infants born from a cohort of mothers with RT-PCR confirmed ZIKV during pregnancy in Risaralda, Colombia.
Methods
We conducted a retrospective cohort, including normocephalic children born from mothers with RT-PCR confirmed ZIKV infection during pregnancy in Risaralda, Colombia. Physical growth was measured using WHO standards, and neurodevelopment was measured with the abbreviated neurodevelopment scale 2 validated for Colombia.
Results
After verifying inclusion and exclusion criteria, 16 children were followed during a median time of 28 months (IQR 23–31 months); for a total of 116 visits, 87.5% (n = 14) of the patients developed a growth alteration. Five presented post-natal microcephaly, and among them, four presented malnutrition or low height. Six patients developed macrocephaly. Patients with a normal head circumference had normal neurodevelopment. Only one patient with microcephaly persisted with impairment of the neurodevelopment at the end of follow-up. All the patients with macrocephaly had normal neurodevelopment.
Discussion
Our study suggests that growth could be altered in infants with in utero Zika exposure. We found a high proportion of patients with overgrowth and macrocephaly. Future studies should consider endocrine follow-up of children born with in utero Zika exposure to explore these findings’ possible aetiologies.
Conclusion
We found a high proportion of growth alterations, particularly with overgrowth features and macrocephaly. Our study suggests that in addition to neurodevelopment impairment, growth could be altered in infants and children with in utero Zika exposure, even in those patients born without CZS.