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Bispebjerg Hospital - a part of Copenhagen University Hospital
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Long term cognitive and functional status in Danish ICU patients with COVID-19

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  • Sarah Weihe
  • Camilla B Mortensen
  • Nicolai Haase
  • Lars P K Andersen
  • Thomas Mohr
  • Hanna Siegel
  • Michael Ibsen
  • Vibeke R L Jørgensen
  • David L Buck
  • Helle B S Pedersen
  • Henrik P Pedersen
  • Susanne Iversen
  • Niels Ribergaard
  • Bodil S Rasmussen
  • Robert Winding
  • Ulrick S Espelund
  • Helle Bundgaard
  • Christoffer G Sølling
  • Steffen Christensen
  • Ricardo S Garcia
  • Anne C Brøchner
  • Jens Michelsen
  • George Michagin
  • Lynge Kirkegaard
  • Anders Perner
  • Ole Mathiesen
  • Lone M Poulsen
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BACKGROUND: ICU admission due to COVID-19 may result in cognitive and physical impairment. We investigated the long-term cognitive and physical status of Danish ICU patients with COVID-19.

METHODS: We included all patients with COVID-19 admitted to Danish ICUs between March 10 and May 19, 2020. Patients were the contacted prospectively at 6 and 12 months for follow-up. Our primary outcomes were cognitive function and frailty at 6 and 12 months after ICU admission, estimated by the Mini Montreal Cognitive Assessment, and the Clinical Frailty Scale. Secondary outcomes were 6- and 12-month mortality, health-related quality of life (HRQoL) assessed by EQ-5D-5L, functional status (Barthel activities of daily living and Lawton-Brody instrumental activities of daily living), and fatigue (Fatigue Assessment Scale). The study had no information on pre-ICU admission status for the participants.

RESULTS: A total of 326 patients were included. The 6- and 12-month mortality was 37% and 38%, respectively. Among the 204 six-month survivors, 105 (51%) participated in the 6-month follow-up; among the 202 twelve-month survivors, 95 (47%) participated in the 12-month follow-up. At 6 months, cognitive scores indicated impairment for 26% (95% confidence interval [CI], 11.4-12.4) and at 12 months for 17% (95% CI, 12.0-12.8) of participants. Frailty was indicated in 20% (95% CI, 3.4-3.9) at 6 months, and for 18% (95% CI, 3.3-3.8) at 12 months. Fatigue was reported by 52% at 6 months, and by 47% at 12 months. For HRQoL, moderate, severe, or extreme health problems were reported by 28% at 6 months, and by 25% at 12 months.

CONCLUSION: Long-term cognitive, functional impairment was found in up to one in four of patients surviving intensive care for COVID-19. Fatigue was present in nearly half the survivors at both 6 and 12 months. However, pre-ICU admission status of the patients was unknown.

Original languageEnglish
JournalActa Anaesthesiologica Scandinavica
Volume66
Issue number8
Pages (from-to)978-986
Number of pages9
ISSN0001-5172
DOIs
Publication statusPublished - Sep 2022

Bibliographical note

This article is protected by copyright. All rights reserved.

    Research areas

  • Activities of Daily Living/psychology, COVID-19/therapy, Cognition, Denmark/epidemiology, Fatigue/epidemiology, Frailty/epidemiology, Functional Status, Humans, Intensive Care Units, Prospective Studies, Quality of Life

ID: 79045629