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Neuro-COVID frequency and short-term outcome in the Northern Portuguese population #MMPMID33884707
Oliveira V; Seabra M; Rodrigues R; Carvalho V; Mendes M; Pereira D; Caldeiras C; Martins B; Silva R; Azevedo A; Lima MJ; Monteiro C; Varela R; Malheiro S; Abreu M; Azevedo E; Leal Loureiro J; Tedim Cruz V; Silva MR; Magalhaes R; Silva C; Maia LF; Correia M
Eur J Neurol 2021[Oct]; 28 (10): 3360-3368 PMID33884707show ga
BACKGROUND AND PURPOSE: COVID-19-related acute neurological phenotypes are being increasingly recognised, with neurological complications reported in more than 30% of hospitalised patients. However, multicentric studies providing a population-based perspective are lacking. METHODS: We conducted a retrospective multicentric study at five hospitals in Northern Portugal, representing 45.1% of all hospitalised patients in this region, between 1 March and 30 June 2020. RESULTS: Among 1261 hospitalised COVID-19 patients, 457 (36.2%) presented neurological manifestations, corresponding to a rate of 357 per 1000 in the North Region. Patients with neurologic manifestations were younger (68.0 vs. 71.2 years, p = 0.002), and the most frequent neurological symptoms were headache (13.4%), delirium (10.1%), and impairment of consciousness (9.7%). Acute well-defined central nervous system (CNS) involvement was found in 19.1% of patients, corresponding to a rate of 217 per 1000 hospitalised patients in the whole region. Assuming that all patients with severe neurological events were hospitalised, we extrapolated our results to all COVID-19 patients in the region, estimating that 116 will have a severe neurological event, corresponding to a rate of nine per 1000 (95% CI = 7-11). Overall case fatality in patients presenting neurological manifestations was 19.8%, increasing to 32.6% among those with acute well-defined CNS involvement. CONCLUSIONS: We characterised the population of hospitalised COVID-19 patients in Northern Portugal and found that neurological symptoms are common and associated with a high degree of disability at discharge. CNS involvement with criteria for in-hospital admission was observed in a significant proportion of patients. This knowledge provides the tools for adequate health planning and for improving COVID-19 multidisciplinary patient care.
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Eur+J+Neurol 2021 ; 28 (10): 3360-3368
