World journal of clinical cases · 2022
Lymphocytic choriomeningitis virus: An under-recognized congenital teratogen.
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Ferenc Thomas, Vujica Mateja, Mrzljak Anna, Vilibic-Cavlek Tatjana
Аннотация
BACKGROUND: Lymphocytic choriomeningitis virus (LCMV) is a neglected rodent-borne arenavirus associated with transplacental transmission and fetal infection.
AIM: To summarize the epidemiological, clinical, and diagnostic features of reported patients with congenital LCMV infection.
METHODS: A literature search was conducted in PubMed, Medline, Google Scholar, and ResearchGate. The keywords used were 'congenital lymphocytic choriomeningitis virus,' and 48 studies were included. In addition, we conducted a relevant search by Reference Citation Analysis (RCA) (https://www.referencecitationanalysis.com).
RESULTS: The results have shown 27 reports of congenital LCMV infection in 86 patients, with 52.73% of them being males. Patients presented with chorioretinitis (83.53%), hydrocephalus (54.12%), and psychomotor retardation or developmental delay (54.12%). Computed tomography and/or magnetic resonance imaging most often demonstrated ventriculomegaly (74.07%), periventricular calcifications (66.67%), and microcephaly (40%). Most mothers of congenitally infected infants were exposed to rodents during pregnancy, predominantly mice, with flu-like symptoms mainly occurring during the first two trimesters of gestation. Mortality in congenitally infected children was 16.47%. The diagnosis of congenital LCMV infection was confirmed serologically in most patients (86.67%).
CONCLUSION: LCMV is still an insufficiently recognized fetal teratogen that often leads to long-term neurologic sequelae. Clinicians need to be familiar with LCMV and its potential teratogenic effect and as well as to effectively differentiate LCMV from other TORCH (T: Toxoplasma gondii, O: Other pathogens, R: Rubella virus, C: Cytomegalovirus, H: Herpes simplex virus) pathogens.
AIM: To summarize the epidemiological, clinical, and diagnostic features of reported patients with congenital LCMV infection.
METHODS: A literature search was conducted in PubMed, Medline, Google Scholar, and ResearchGate. The keywords used were 'congenital lymphocytic choriomeningitis virus,' and 48 studies were included. In addition, we conducted a relevant search by Reference Citation Analysis (RCA) (https://www.referencecitationanalysis.com).
RESULTS: The results have shown 27 reports of congenital LCMV infection in 86 patients, with 52.73% of them being males. Patients presented with chorioretinitis (83.53%), hydrocephalus (54.12%), and psychomotor retardation or developmental delay (54.12%). Computed tomography and/or magnetic resonance imaging most often demonstrated ventriculomegaly (74.07%), periventricular calcifications (66.67%), and microcephaly (40%). Most mothers of congenitally infected infants were exposed to rodents during pregnancy, predominantly mice, with flu-like symptoms mainly occurring during the first two trimesters of gestation. Mortality in congenitally infected children was 16.47%. The diagnosis of congenital LCMV infection was confirmed serologically in most patients (86.67%).
CONCLUSION: LCMV is still an insufficiently recognized fetal teratogen that often leads to long-term neurologic sequelae. Clinicians need to be familiar with LCMV and its potential teratogenic effect and as well as to effectively differentiate LCMV from other TORCH (T: Toxoplasma gondii, O: Other pathogens, R: Rubella virus, C: Cytomegalovirus, H: Herpes simplex virus) pathogens.