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Limitations of care and comorbidities are associated with increased mortality in patients treated with non-invasive ventilation: a retrospective observational study in a single-center ICU
Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Anaesthesiology.
Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Anaesthesiology.ORCID iD: 0000-0001-8598-9804
Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Anaesthesiology.ORCID iD: 0000-0002-8171-5184
2021 (English)In: F1000 Research, E-ISSN 2046-1402, Vol. 10, article id 865Article in journal (Refereed) Published
Abstract [en]

Background: Non-invasive ventilation (NIV) is a common treatment for acute respiratory failure in intensive care units (ICU). While there is increasing data on outcomes after NIV treatment, there are large variations in staffing and monitoring where NIV is provided, making results hard to generalize. The aim of this study was to characterize patients treated with NIV, describe outcomes, and identify factors associated with outcome in an ICU at a Swedish county hospital.

Methods: A single-centre retrospective observational study during 2018 of patients treated with NIV in a six-bed ICU at a Swedish county hospital. Patient characteristics, including comorbidities, details of ICU stay, simplified acute physiology score (SAPS-3), details of NIV treatment and 30-day mortality were collected, and the Charlson co-morbidity index (CCI) was calculated. Primary outcomes were 30-day mortality and associated factors.

Results: 92 patients with mean age (71,3, SD 12,1) were treated with NIV during the study period. 42 (46%) were women. Median CCI was 3 (25th-75th percentiles 1.4)) and median SAPS-3 score was 66 (25th-75th percentiles 58). The 30-day mortality was 37% and in the univariate analysis, SAPS-3 score >66, Charlson comorbidity index, CCI>=3, pCO2 <5.5 and limitation of care were factors associated with increased 30-day mortality. pH <7.35 and pO2<8 at admission showed no associations with 30-day mortality.

Conclusions: We found that patients treated with NIV in ICU were a diverse population where comorbidities and presence of limitations of care might be considered as better predictors of 30-day mortality, rather than physiological parameters.

Place, publisher, year, edition, pages
F1000 Research Ltd , 2021. Vol. 10, article id 865
Keywords [en]
Critical Care, Mortality, Noninvasive Ventilation, Withholding treatment
National Category
Anesthesiology and Intensive Care Neurology
Identifiers
URN: urn:nbn:se:umu:diva-208054DOI: 10.12688/f1000research.53841.1Scopus ID: 2-s2.0-85153085559OAI: oai:DiVA.org:umu-208054DiVA, id: diva2:1760422
Available from: 2023-05-30 Created: 2023-05-30 Last updated: 2023-11-23Bibliographically approved

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Tydén, JonasWallden, Jakob

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