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Clinical and Genotypic Features of Norovirus Enteritis in Children Complicated by Convulsions: A Retrospective Study
Suqi Xu1, Mingying Wang1, Canchun Zhao2
1Department of Gastroenterology, Kunming Children's Hospital (Affiliated Children's Hospital of Kunming Medical University), Kunming, 650228, China.
Purpose:
Although studies have described the clinical characteristics of norovirus enteritis (NoVE) associated with convulsions, research on its molecular epidemiology remains limited. Therefore, this study aimed to investigate both the clinical manifestations and genotypic features of NoVE complicated by convulsions.
Methods:
NoVE children admitted to our hospital between November 2021 and May 2022 were divided into NoVE complicated with convulsion group and NoVE group. Then, we screened the risk factors of NoVE complicated with convulsion based on multivariate regression analysis. The stool samples were collected, followed by amplification of VP1 sequences of GI and GII and phylogenetic analysis of VP1 in both groups.
Results:
Logistic regression analysis showed that elevated serum CK-MB levels and fever were independent risk factors for convulsions in NoVE patients, while a lower frequency of diarrhea was an independent protective factor. GII.3 genotype was merely detected in 12 NoVE samples (14.81%) and was detected in 5 (15.19%) NoVE with convulsion samples. The GII.4 genotype was detected in 28 (84.85%) samples of the NoVE with convulsion group and 69 (85.19%) samples from the NoVE group.
Conclusions:
Elevated serum CK-MB concentration, fever, and frequency of diarrhea were independent influencing factors for NoVE complicated by convulsions.
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