2357. Radiological Findings in Microcephaly Cases During 2015-2016 Zika Outbreak: A Descriptive Study
Session: Poster Abstract Session: Pediatric Viral Infections
Saturday, October 6, 2018
Room: S Poster Hall
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  • Background: Studies have demonstrated radiological findings in microcephaly (MCP) related to Zika virus
    (ZIKV). The 2015-2016 ZIKV epidemic leaded to an increase in the prevalence of MCP in the northeast region of
    Brazil. Rio Grande do Norte State (RN), a Brazilian northeast state, was highly impacted by this outbreak. This study aimed to evaluate CT scan findings in living babies whose mothers had exanthematous diseases (ED) compatible with ZIKV infection during their pregnancy.

    Methods: We evaluated the CT brain scan images of 38 subjects up to 17 months whose mothers had
    ED during pregnancy. All these MCP cases were followed at a reference center for children rehabilitation in RN.
    Cohort enrollment occurred within babies born between January 2015 and May 2016.

    Results: All subjects had brain volume reduction, followed by intracranial calcification (N=27 ). Lissencephaly and
    ventricular dilatation were found in 19 cases. Pachygyria was observed in 11 subjects (28.9%) and cerebellar
    atrophy was observed in 8 subjects (21%). All subjects reported with pachygyria had lissencephaly. In addition, all
    subjects observed with intracranial calcifications had pachygyria.

    Conclusion: It is a large and well detailed case series of CT brain scan performed in living babies with MCP related to ZIKV.
    These findings observed are supportive evidence to prove the severity of brain damages cased by ZIKV due to its
    neurotropism. This pattern of CT scan images should be compared with CT brain images observed in others
    studies in MCP cases related to ZIKV. Furthermore, our results might be compared with CT brain scan images
    from MCPs related to other infectious diseases (STORCH positive) that can also lead to central nervous system
    alterations. It will certainly help differentiating the etiology of MCPs.

    Nilson N. Mendes Neto, MD, Extension Center, University of California, Davis, Davis, CA; Family Medicine, HUOL, Natal - RN, Brazil, Jessika Maia, MD, HUOL, Natal - RN, Brazil, Marcelo Rodrigues Zacarkim, MD, MS, Harvard Medical School, Boston, MA, Kalyana E. Fernandes, MD, CRI - RN, Natal, Brazil, David Aronoff, MD, FIDSA, Medicine, Vanderbilt University School of Medicine, Division of Infectious Diseases, Nashville, TN, Igor Thiago Queiroz, MD, PhD, Universidade Potiguar, natal, Brazil, A. Desiree Labeaud, MD, MS, Pediatric Infectious Diseases, Stanford University, Stanford, CA and Tabata De Alcantara, MD, MS, CRI-RN, Natal, Brazil


    N. N. Mendes Neto, None

    J. Maia, None

    M. Rodrigues Zacarkim, None

    K. E. Fernandes, None

    D. Aronoff, None

    I. Thiago Queiroz, None

    A. Desiree Labeaud, None

    T. De Alcantara, None

    Findings in the abstracts are embargoed until 12:01 a.m. PDT, Wednesday Oct. 3rd with the exception of research findings presented at the IDWeek press conferences.