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Hospital admissions of acute cerebrovascular diseases during and after the first wave of the COVID-19 pandemic: a state-wide experience from Austria

We investigated hospital admission rates for the entire spectrum of acute cerebrovascular diseases and of recanalization treatments for ischaemic stroke (IS) in the Austrian federal state of Styria during and also after the first coronavirus disease 2019 (COVID-19) wave. We retrospectively identifie...

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Published in:Journal of neurology 2021-10, Vol.268 (10), p.3584-3588
Main Authors: Gattringer, Thomas, Fandler-Höfler, Simon, Kneihsl, Markus, Hofer, Edith, Köle, Wolfgang, Schmidt, Reinhold, Tscheliessnigg, Karl-Heinz, Frank, Almut-Michaela, Enzinger, Christian
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creator Gattringer, Thomas
Fandler-Höfler, Simon
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Tscheliessnigg, Karl-Heinz
Frank, Almut-Michaela
Enzinger, Christian
description We investigated hospital admission rates for the entire spectrum of acute cerebrovascular diseases and of recanalization treatments for ischaemic stroke (IS) in the Austrian federal state of Styria during and also after the first coronavirus disease 2019 (COVID-19) wave. We retrospectively identified all patients with transient ischaemic attack (TIA), IS and non-traumatic intracranial haemorrhage (ICH; including intracerebral, subdural and subarachnoid bleeding types) admitted to one of the 11 public hospitals in Styria (covering > 95% of inhospital cerebrovascular events in this region). Information was extracted from the electronic medical documentation network connecting all public Styrian hospitals. We analysed two periods of interest: (1) three peak months of the first COVID-19 wave (March–May 2020), and (2) three recovery months thereafter (June–August 2020), compared to respective periods 4 years prior (2016–2019) using Poisson regression. In the three peak months of the first COVID-19 wave, there was an overall decline in hospital admissions for acute cerebrovascular diseases (RR = 0.83, 95% CI 0.78–0.89, p  
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We retrospectively identified all patients with transient ischaemic attack (TIA), IS and non-traumatic intracranial haemorrhage (ICH; including intracerebral, subdural and subarachnoid bleeding types) admitted to one of the 11 public hospitals in Styria (covering &gt; 95% of inhospital cerebrovascular events in this region). Information was extracted from the electronic medical documentation network connecting all public Styrian hospitals. We analysed two periods of interest: (1) three peak months of the first COVID-19 wave (March–May 2020), and (2) three recovery months thereafter (June–August 2020), compared to respective periods 4 years prior (2016–2019) using Poisson regression. In the three peak months of the first COVID-19 wave, there was an overall decline in hospital admissions for acute cerebrovascular diseases (RR = 0.83, 95% CI 0.78–0.89, p  &lt; 0.001), which was significant for TIA (RR = 0.61, 95% CI 0.52–0.72, p  &lt; 0.001) and ICH (0.78, 95% CI 0.67–0.91, p  = 0.02), but not for IS (RR = 0.93, 95% CI 0.85–1, p  = 0.08). Thrombolysis and thrombectomy numbers were not different compared to respective months 4 years prior. In the recovery period after the first COVID-19 wave, TIA (RR = 0.82, 95% CI 0.71–0.96, p  = 0.011) and ICH (RR = 0.86, 95% CI 0.74–0.99, p  = 0.045) hospitalizations remained lower, while the frequency of IS and recanalization treatments was unchanged. 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We retrospectively identified all patients with transient ischaemic attack (TIA), IS and non-traumatic intracranial haemorrhage (ICH; including intracerebral, subdural and subarachnoid bleeding types) admitted to one of the 11 public hospitals in Styria (covering &gt; 95% of inhospital cerebrovascular events in this region). Information was extracted from the electronic medical documentation network connecting all public Styrian hospitals. We analysed two periods of interest: (1) three peak months of the first COVID-19 wave (March–May 2020), and (2) three recovery months thereafter (June–August 2020), compared to respective periods 4 years prior (2016–2019) using Poisson regression. In the three peak months of the first COVID-19 wave, there was an overall decline in hospital admissions for acute cerebrovascular diseases (RR = 0.83, 95% CI 0.78–0.89, p  &lt; 0.001), which was significant for TIA (RR = 0.61, 95% CI 0.52–0.72, p  &lt; 0.001) and ICH (0.78, 95% CI 0.67–0.91, p  = 0.02), but not for IS (RR = 0.93, 95% CI 0.85–1, p  = 0.08). Thrombolysis and thrombectomy numbers were not different compared to respective months 4 years prior. In the recovery period after the first COVID-19 wave, TIA (RR = 0.82, 95% CI 0.71–0.96, p  = 0.011) and ICH (RR = 0.86, 95% CI 0.74–0.99, p  = 0.045) hospitalizations remained lower, while the frequency of IS and recanalization treatments was unchanged. In this state-wide analysis covering all types of acute cerebrovascular diseases, hospital admissions for TIA and ICH were reduced during and also after the first wave of the COVID-19 pandemic, but hospitalizations and recanalization treatments for IS were not affected in these two periods.</abstract><cop>Berlin/Heidelberg</cop><pub>Springer Berlin Heidelberg</pub><pmid>33641003</pmid><doi>10.1007/s00415-021-10488-8</doi><tpages>5</tpages><oa>free_for_read</oa></addata></record>
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subjects Austria - epidemiology
Brain Ischemia
Cerebrovascular diseases
Cerebrovascular Disorders - epidemiology
Cerebrovascular Disorders - therapy
Coronaviruses
COVID-19
Hemorrhage
Hospitalization
Hospitals
Humans
Ischemia
Medicine
Medicine & Public Health
Neurology
Neuroradiology
Neurosciences
Pandemics
Patient admissions
Retrospective Studies
SARS-CoV-2
Short
Short Commentary
Stroke - epidemiology
Stroke - therapy
Thrombolysis
Transient ischemic attack
Vascular diseases
title Hospital admissions of acute cerebrovascular diseases during and after the first wave of the COVID-19 pandemic: a state-wide experience from Austria
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