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Motor demyelinating tibial neuropathy in COVID-19.

ABSTRACT: Ten patients suffering from residual symptoms after the resolution of COVID-19, which manifested as fatigue in the lower limbs, have been submitted to nerve conduction studies. Motor demyelinating neuropathy features mainly of the tibial nerves but also the peroneal, median, and ulnar nerves were objectified. These findings might be considered as new neurological characteristics of SARS-CoV-2 infection.

SUBMITTER: Daia C

PROVIDER: S-EPMC8082354 | biostudies-literature | 2021 Nov

REPOSITORIES: biostudies-literature

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Motor demyelinating tibial neuropathy in COVID-19.

Daia Cristina C Toader Corneliu C Scheau Cristian C Onose Gelu G

Journal of the Formosan Medical Association = Taiwan yi zhi 20210429 11

Ten patients suffering from residual symptoms after the resolution of COVID-19, which manifested as fatigue in the lower limbs, have been submitted to nerve conduction studies. Motor demyelinating neuropathy features mainly of the tibial nerves but also the peroneal, median, and ulnar nerves were objectified. These findings might be considered as new neurological characteristics of SARS-CoV-2 infection. ...[more]

PMID: 33934948

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Project description:Background and objective The impact of COVID-19 infection and the effect of COVID-19 vaccinations on patients with demyelinating central nervous system disease in low middle income countries (LMIC's) have not been reported in detail earlier. We sought to identify risk factors associated with COVID-19 infection and the role of vaccination in order to develop management guidelines relevant to our patients. Methods A total of 621 patients from our registry that included 297 MS and 324 non MS disorders (Aquaporin- 4 antibody positive [50], Myelin oligodendrocyte glycoprotein antibody positive [81], seronegative [162] and clinically isolated syndrome [31]) were contacted. COVID-19 infection and vaccination status were queried. Patients who self reported COVID-19 infection based on a positive RT PCR report were compared with non infected patients to identify factors associated with susceptibility for COVID-19 infection. Univariate and multivariate analysis of potential risk factors included demographic and clinical features, body mass index (BMI), presence of comorbidities, absolute lymphocyte count, treatment types and vaccination status. Results Sixty seven patients with MS and 27 with non MS disorders developed COVID-19 infection. Among them 81 patients had mild infection and remained quarantined at home. All 13 patients who needed hospitalization recovered. Vaccination status was known in 582 patients among whom 69.8% had completed or taken one dose of vaccine at the time of inquiry. Majority of treated patients (61.3%) were on nonspecific immunosuppressants. In univariate analysis, presence of ≥1 comorbidity was significantly associated with COVID-19 infection in both MS (p value 0.01, OR-2.28, 95%CI- 1.18- 4.4) and non MS patients (p- 0.001, OR-4.4, 95% CI-1.88-10.24). In the latter, BMI ≥ 30 (p-0.04, OR-3.27, 95% CI- 0.98- 10.87) and EDSS score ≥ 3 (p-0.02, OR- 2.59,95% CI- 1.08- 6.23) were other significant associations. History of prior COVID-19 vaccination was associated with reduced frequency of COVID- 19 infection among MS (p- 0.001,OR- 0.24,95% CI- 0.13- 0.43) and non MS patients (p- 0.0001,OR-0.14, 95% CI- 0.058- 0.35). In multivariate analysis presence of comorbidities significantly increased and prior vaccination significantly reduced frequency of COVID-19 infection for both MS and related disorders. Concurrent disease modifying treatments showed a trend for association with infection. In the unvaccinated group, patients on disease modifying treatment were significantly at risk of infection, 81.5% unvaccinated and treated versus 18.5% who were unvaccinated and untreated (p- 0.0001, OR-10.1, 95% CI-0.56-2.11). Conclusion Frequency and severity of COVID-19 infection was low among our patient cohort. Higher rate of infection in the treated group was significantly seen among unvaccinated patients. Our preliminary results suggests that in LMIC's, where “off label therapies” with inexpensive immunosuppressives are the main disease modifying drugs, mRNA vaccinations appear safe and effective against severe COVID-19 infection.

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Motor demyelinating tibial neuropathy in COVID-19.

Publications

Motor demyelinating tibial neuropathy in COVID-19.

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