| アブストラクト | BACKGROUND AND PURPOSE: An association between Guillain-Barre syndrome and its variants (GBS/V) and vaccines has led to hesitancy toward vaccination. COVID-19 vaccines could theoretically provoke GBS/V via immune activation. We analyzed reports of GBS/V after COVID-19 vaccination in the vaccine adverse event reporting system (VAERS). METHODS: The VAERS database is a surveillance system used to report vaccination events in the USA, and is open for consumers and physicians to access. It was queried for reports of GBS/V following COVID-19 vaccination. Reports were reviewed by four neurologists. Modified diagnostic criteria were used to classify reports into definite, possible, and not GBS/V or insufficient data. Descriptive statistics were used to describe the sample, chi-square tests and one-way ANOVAs were used to compare intergroup differences, and t-test were used to compare group means. RESULTS: In 2021, 815 reports of GBS/V were filed. The completion rate for the variables in VAERS was 93.5%. The median age was 55 years (interquartile range [IQR]=5-86 years) and 50% of the subjects were male. The median time of onset was 10 days (IQR=0-298 days), 11% reported onset on the day of vaccination, and 13% reported onset after 6 weeks. Hospitalization was reported by 77%, with a median stay of 7 days (IQR=1-150 days). Lack of recovery, permanent disability, and death constituted 57%, 46%, and 2% of the reports, respectively. Based on GBS/V criteria, 47% of the cases were definite, 16% were possible, and 37% were not GBS/V or insufficient data. An alternate diagnosis was provided in 9% of cases. CONCLUSIONS: GBS/V reports following COVID-19 vaccination were common, but many occurred outside of the expected timelines for GBS/V. Only 47% of cases represented definite GBS/V. |
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| ジャーナル名 | Journal of clinical neurology (Seoul, Korea) |
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| 投稿日 | 2023/3/1 |
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| 投稿者 | Chalela, Julio A; Andrews, Charles; Bashmakov, Anna; Kapoor, Niren; Snelgrove, Danuel |
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| 組織名 | Department of Neurosurgery, Medical University of South Carolina, Charleston, SC,;USA. chalela@musc.edu.;USA.;Department of Neurology, Medical University of South Carolina, Charleston, SC, |
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| Pubmed リンク | https://www.ncbi.nlm.nih.gov/pubmed/36854334/ |
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