Please use this identifier to cite or link to this item: doi:10.22028/D291-35371
Title: Comparison of isoflurane and propofol sedation in critically ill COVID-19 patients-a retrospective chart review
Author(s): Kermad, Azzeddine
Speltz, Kermad
Danziger, Guy
Mertke, Thilo
Bals, Robert
Volk, Thomas
Lepper, Philipp M.
Meiser, Andreas
Language: English
Title: Journal of Anesthesia
Volume: 35
Issue: 5
Pages: 625–632
Publisher/Platform: Springer Nature
Year of Publication: 2021
Free key words: COVID-19
Inhaled sedation
Critical care
DDC notations: 610 Medicine and health
Publikation type: Journal Article
Abstract: Purpose In this retrospective study, we compared inhaled sedation with isoflurane to intravenous propofol in invasively ventilated COVID-19 patients with ARDS (Acute Respiratory Distress Syndrome). Methods Charts of all 20 patients with COVID-19 ARDS admitted to the ICU of a German University Hospital during the first wave of the pandemic between 22/03/2020 and 21/04/2020 were reviewed. Among screened 333 days, isoflurane was used in 97 days, while in 187 days, propofol was used for 12 h or more. The effect and dose of these two sedatives were compared. Mixed sedation days were excluded. Results Patients’ age (median [interquartile range]) was 64 (60–68) years. They were invasively ventilated for 36 [21–50] days. End-tidal isoflurane concentrations were high (0.96 ± 0.41 Vol %); multiple linear regression yielded the ratio (isoflurane infusion rate)/(minute ventilation) as the single best predictor. Infusion rates were decreased under ECMO (3.5 ± 1.4 versus 7.1 ± 3.2 ml∙h−1; p < 0.001). In five patients, the maximum recommended dose of propofol of 4 mg∙hour−1∙kg−1ABW was exceeded on several days. On isoflurane compared to propofol days, neuro-muscular blocking agents (NMBAs) were used less frequently (11% versus 21%; p < 0.05), as were co-sedatives (7% versus 31%, p < 0.001); daily opioid doses were lower (720 [720–960] versus 1080 [720–1620] mg morphine equivalents, p < 0.001); and RASS scores indicated deeper levels of sedation (− 4.0 [− 4.0 to − 3.0] versus − 3.0 [− 3.6 to − 2.5]; p < 0.01). Conclusion Isoflurane provided sufficient sedation with less NMBAs, less polypharmacy and lower opioid doses compared to propofol. High doses of both drugs were needed in severely ill COVID-19 patients.
DOI of the first publication: 10.1007/s00540-021-02960-6
Link to this record: urn:nbn:de:bsz:291--ds-353716
ISSN: 1438-8359
Date of registration: 2-Feb-2022
Faculty: M - Medizinische Fakultät
Department: M - Anästhesiologie
M - Innere Medizin
Professorship: M - Prof. Dr. Robert Bals
M - Prof. Dr. Thomas Volk
Collections:SciDok - Der Wissenschaftsserver der Universität des Saarlandes

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