Effect of seasons on delirium in postoperative critically ill patients: a retrospective analysis

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dc.authorid0000-0003-1791-9884en_US
dc.contributor.authorQiu, Yuwei
dc.contributor.authorRivas, Eva
dc.contributor.authorTanios, Marianne
dc.contributor.authorSreedharan, Roshni
dc.contributor.authorMao, Guangmei
dc.contributor.authorİnce, İlker
dc.contributor.authorSalih, Ahmed
dc.contributor.authorSaab, Remie
dc.contributor.authorDevarajan, Jagan
dc.contributor.authorRuetzler, Kurt
dc.contributor.authorTuran, Alparslan
dc.date.accessioned2023-02-14T11:34:01Z
dc.date.available2023-02-14T11:34:01Z
dc.date.issued2023en_US
dc.departmentFakülteler, Tıp Fakültesi, Cerrahi Tıp Bilimleri Bölümüen_US
dc.description.abstractBackground and objectives: Postoperative delirium is common in critically ill patients and is known to have several predisposing and precipitating factors. Seasonality affects cognitive function which has a more dysfunctional pattern during winter. We, therefore, aimed to test whether seasonal variation is associated with the occurrence of delirium and hospital Length Of Stay (LOS) in critically ill non-cardiac surgical populations. Methods: We conducted a retrospective analysis of adult patients recovering from non-cardiac surgery at the Cleveland Clinic between March 2013 and March 2018 who stayed in Surgical Intensive Care Unit (SICU) for at least 48 hours and had daily Confusion Assessment Method Intensive Care Unit (CAM-ICU) assessments for delirium. The incidence of delirium and LOS were summarized by season and compared using chi-square test and non-parametric tests, respectively. A logistic regression model was used to assess the association between delirium and LOS with seasons, adjusted for potential confounding variables. Results: Among 2300 patients admitted to SICU after non-cardiac surgeries, 1267 (55%) had postoperative delirium. The incidence of delirium was 55% in spring, 54% in summer, 55% in fall and 57% in winter, which was not significantly different over the four seasons (p = 0.69). The median LOS was 12 days (IQR = [8, 19]) overall. There was a significant difference in LOS across the four seasons (p = 0.018). LOS during summer was 12% longer (95% CI: 1.04, 1.21; p = 0.002) than in winter. Conclusions: In adult non-cardiac critically ill surgical patients, the incidence of postoperative delirium is not associated with season. Noticeably, LOS was longer in summer than in winter.en_US
dc.identifier.citationQiu, Y., Rivas, E., Tanios, M., Sreedharan, R., Mao, G., İnce, I., Salih, A., Devarajan, J., Ruetzler, K., Turan, A. (2022). Effect of seasons on delirium in postoperative critically ill patients: a retrospective analysis. Brazilian Journal of Anesthesiology, 73(1), 3-9.en_US
dc.identifier.endpage9en_US
dc.identifier.issue1en_US
dc.identifier.startpage3en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12939/3299
dc.identifier.volume73en_US
dc.identifier.wosWOS:000922217100001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakPubMed
dc.institutionauthorİnce, İlker
dc.language.isoen
dc.relation.ispartofBrazilian Journal of Anesthesiology
dc.relation.isversionof10.1016/j.bjane.2022.02.002en_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectPostoperative Deliriumen_US
dc.subjectSeasonalen_US
dc.subjectSurgical Intensive Care Uniten_US
dc.titleEffect of seasons on delirium in postoperative critically ill patients: a retrospective analysis
dc.typeArticle

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