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  1. Article ; Online: Postoperative acute kidney injury after volatile or intravenous anesthesia: a meta-analysis.

    Franzén, Stephanie / Frithiof, Robert / Hultström, Michael

    American journal of physiology. Renal physiology

    2023  Volume 324, Issue 4, Page(s) F329–F334

    Abstract: Postoperative acute kidney injury (AKI) is a common complication after surgery. The pathophysiology of postoperative AKI is complex. One potentially important factor is anesthetic modality. We, therefore, conducted a meta-analysis of the available ... ...

    Abstract Postoperative acute kidney injury (AKI) is a common complication after surgery. The pathophysiology of postoperative AKI is complex. One potentially important factor is anesthetic modality. We, therefore, conducted a meta-analysis of the available literature regarding anesthetic modality and incidence of postoperative AKI. Records were retrieved until January 17, 2023, with the search terms ("propofol" OR "intravenous") AND ("sevoflurane" OR "desflurane" OR "isoflurane" OR "volatile" OR "inhalational") AND ("acute kidney injury" OR "AKI"). A meta-analysis for common effects and random effects was performed after exclusion assessment. Eight records were included in the meta-analysis with a total of 15,140 patients (
    MeSH term(s) Humans ; Anesthetics, Intravenous/adverse effects ; Anesthetics, Inhalation/adverse effects ; Anesthesia, Intravenous/adverse effects ; Propofol/adverse effects ; Acute Kidney Injury/chemically induced ; Acute Kidney Injury/diagnosis ; Acute Kidney Injury/epidemiology ; Kidney
    Chemical Substances Anesthetics, Intravenous ; Anesthetics, Inhalation ; Propofol (YI7VU623SF)
    Language English
    Publishing date 2023-02-16
    Publishing country United States
    Document type Meta-Analysis ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 603837-2
    ISSN 1522-1466 ; 0363-6127
    ISSN (online) 1522-1466
    ISSN 0363-6127
    DOI 10.1152/ajprenal.00316.2022
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Uromodulin in sepsis and severe pneumonia: a two-sample Mendelian randomization study.

    Eriksson, Mikael / Lipcsey, Miklós / Ilboudo, Yann / Yoshiji, Satoshi / Richards, Brent / Hultström, Michael

    Physiological genomics

    2024  Volume 56, Issue 5, Page(s) 409–416

    Abstract: The outcome for patients with sepsis-associated acute kidney injury in the intensive care unit (ICU) remains poor. Low serum uromodulin (sUMOD) protein levels have been proposed as a causal mediator of this effect. We investigated the effect of different ...

    Abstract The outcome for patients with sepsis-associated acute kidney injury in the intensive care unit (ICU) remains poor. Low serum uromodulin (sUMOD) protein levels have been proposed as a causal mediator of this effect. We investigated the effect of different levels of sUMOD on the risk of sepsis and severe pneumonia and outcomes in these conditions. A two-sample Mendelian randomization (MR) study was performed. Single-nucleotide polymorphisms (SNPs) associated with increased levels of sUMOD were identified and used as instrumental variables for association with outcomes. Data from different cohorts were combined based on disease severity and meta-analyzed. Five SNPs associated with increased sUMOD levels were identified and tested in six datasets from two biobanks. There was no protective effect of increased levels of sUMOD on the risk of sepsis [two cohorts, odds ratio (OR) 0.99 (95% confidence interval 0.95-1.03),
    MeSH term(s) Humans ; Acute Kidney Injury/genetics ; Mendelian Randomization Analysis ; Pneumonia/complications ; Pneumonia/genetics ; Sepsis/complications ; Sepsis/genetics ; Uromodulin/genetics
    Chemical Substances Uromodulin ; UMOD protein, human
    Language English
    Publishing date 2024-02-19
    Publishing country United States
    Document type Meta-Analysis ; Journal Article
    ZDB-ID 2038823-8
    ISSN 1531-2267 ; 1094-8341
    ISSN (online) 1531-2267
    ISSN 1094-8341
    DOI 10.1152/physiolgenomics.00145.2023
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  3. Article ; Online: Physical activity is associated with a lower risk of contracting and dying in infection and sepsis: a Swedish population-based cohort study.

    Stattin, Karl / Eriksson, Mikael / Frithiof, Robert / Kawati, Rafael / Hultström, Michael / Lipcsey, Miklos

    Critical care (London, England)

    2024  Volume 28, Issue 1, Page(s) 98

    Abstract: Background: Sepsis is a condition where the immune response to infection becomes dysregulated and life-threatening. It is not known whether lifestyle factors influence the risk of sepsis. The aim of the present study is to investigate the association ... ...

    Abstract Background: Sepsis is a condition where the immune response to infection becomes dysregulated and life-threatening. It is not known whether lifestyle factors influence the risk of sepsis. The aim of the present study is to investigate the association between physical activity and the risk of acquiring and dying in infection or sepsis.
    Methods: The population-based Swedish Mammography Cohort and Cohort of Swedish Men sent participants lifestyle questionnaires in 1997 and have subsequently followed participants in national Swedish registers, including the National Patient Register, the Swedish Intensive Care Registry and the Cause of Death Register. The risk of contracting infection and sepsis, the risk of intensive care unit admission and the risk of death were estimated using multivariable Cox regression.
    Results: Among 64,850 cohort participants, 26,124 individuals suffered at least one episode of infection or sepsis and 4708 individuals died of infection or sepsis during the study period. In adjusted analyses, compared to exercising less than one hour per week, stated exercise one hour per week was associated with lower risk of contracting infection or sepsis, hazard ratio (HR) 0.93 (95% confidence interval (CI) 0.90-0.97), and lower risk of dying in infection or sepsis, HR 0.87 (95% CI 0.80-0.96). Further exercise was associated with even lower risk, and similar patterns were observed for walking. The population-attributable risks of contracting and dying in infection or sepsis for not exercising were 2.6% and 4.5%, respectively.
    Conclusions: Exercise and walking demonstrate inverse dose-response associations with both the risk of contracting and dying in infection and sepsis, presenting possible preventative interventions for this critical condition.
    MeSH term(s) Male ; Humans ; Cohort Studies ; Risk Factors ; Sweden/epidemiology ; Exercise ; Sepsis
    Language English
    Publishing date 2024-03-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 2041406-7
    ISSN 1466-609X ; 1364-8535
    ISSN (online) 1466-609X
    ISSN 1364-8535
    DOI 10.1186/s13054-024-04881-8
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Plasma cytokine levels in spinal surgery with sevoflurane or total intravenous propofol anesthesia - A post hoc analysis of a randomized controlled trial.

    Franzén, Stephanie / Semenas, Egidijus / Larsson, Anders / Hultström, Michael / Frithiof, Robert

    Cytokine

    2023  Volume 169, Page(s) 156290

    Abstract: Surgical tissue trauma stimulates an inflammatory response resulting in increased levels of cytokines which could contribute to acute kidney injury (AKI). It is not clear if anesthetic modality affects this response. We aimed to investigate the role of ... ...

    Abstract Surgical tissue trauma stimulates an inflammatory response resulting in increased levels of cytokines which could contribute to acute kidney injury (AKI). It is not clear if anesthetic modality affects this response. We aimed to investigate the role of anesthesia in a healthy surgical population on the inflammatory response and the correlation to plasma creatinine. This study is a post hoc analysis of a published randomized clinical trial. We analyzed plasma from patients who underwent elective spinal surgery randomized to either total intravenous propofol anesthesia (n = 12) or sevoflurane anesthesia (n = 10). The plasma samples were collected before anesthesia, during anesthesia, and 1 h after surgery. Plasma cytokine levels after surgery were analyzed for correlations with duration of surgical insult and change in plasma creatinine concentration. The cytokine interleukin-6 (IL-6) was increased after surgery compared with preoperatively. IL-6 was higher in the sevoflurane group than the propofol group after surgery. No patient developed AKI, but plasma creatinine was increased postoperatively in the sevoflurane group. There was a significant association between surgical time and plasma IL-6 postoperatively. No significant correlation between change in plasma creatinine and IL-6 was detected. The cytokines IL-4, IL-13, Eotaxin, Interferon γ-Induced Protein 10 (IP-10), Granulocyte Colony-Stimulating Factor (G-CSF), Macrophage Inflammatory Protein-1β (MIP-1β), and Monocyte Chemoattractant Protein 1 (MCP-1) were lower postoperatively than before surgery independent of anesthetic modality. This post hoc analysis revealed that plasma IL-6 was increased after surgery and more so in the sevoflurane group than the propofol group. Postoperative plasma IL-6 concentration was associated with surgical time.
    MeSH term(s) Sevoflurane/administration & dosage ; Propofol/administration & dosage ; Cytokines ; Humans ; Spine/surgery ; Anesthetics, Intravenous/administration & dosage ; Anesthetics, Inhalation/administration & dosage
    Chemical Substances Sevoflurane (38LVP0K73A) ; Propofol (YI7VU623SF) ; Cytokines ; Anesthetics, Intravenous ; Anesthetics, Inhalation
    Language English
    Publishing date 2023-07-01
    Publishing country England
    Document type Journal Article ; Randomized Controlled Trial ; Research Support, Non-U.S. Gov't
    ZDB-ID 1018055-2
    ISSN 1096-0023 ; 1043-4666
    ISSN (online) 1096-0023
    ISSN 1043-4666
    DOI 10.1016/j.cyto.2023.156290
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Prior physical illness predicts death better than acute physiological derangement on intensive care unit admission in COVID-19: A Swedish registry study.

    Stattin, Karl / Hultström, Michael / Frithiof, Robert / Lipcsey, Miklos / Kawati, Rafael

    PloS one

    2023  Volume 18, Issue 9, Page(s) e0292186

    Abstract: COVID-19 is associated with prolonged intensive care unit (ICU) stay and considerable mortality. The onset of persistent critical illness, defined as when prior illness predicts death better than acute physiological derangement, has not been studied in ... ...

    Abstract COVID-19 is associated with prolonged intensive care unit (ICU) stay and considerable mortality. The onset of persistent critical illness, defined as when prior illness predicts death better than acute physiological derangement, has not been studied in COVID-19. This national cohort study based on the Swedish Intensive Care Registry (SIR) included all patients admitted to a Swedish ICU due to COVID-19 from 6 March 2020 to 9 November 2021. Simplified Acute Physiology Score-3 (SAPS3) Box 1 was used as a measure of prior illness and Box 3 as a measure of acute derangement to evaluate the onset and importance of persistent critical illness in COVID-19. To compare predictive capacity, the area under receiver operating characteristic (AUC) of SAPS3 and its constituent Box 1 and 3 was calculated for 30-day mortality. In 7 969 patients, of which 1 878 (23.6%) died within 30 days of ICU admission, the complete SAPS3 score had acceptable discrimination: AUC 0.75 (95% CI 0.74 to 0.76) but showed under prediction in low-risk patients and over prediction in high-risk patients. SAPS3 Box 1 showed markedly better discrimination than Box 3 (AUC 0.74 vs 0.65, P<0,0001). Using custom logistic models, the difference in predictive performance of prior and acute illness was validated, AUC 0.76 vs AUC 0.69, p<0.0001. Prior physical illness predicts death in COVID-19 better than acute physiological derangement during ICU stay, and the whole SAPS3 score is not significantly better than just prior illness. The results suggests that COVID-19 may exhibit similarities to persistent critical illness immediately from ICU admission, potentially because of long median ICU length-of-stay. Alternatively, the variables in the acute physiological derangement model may not adequately capture the severity of illness in COVID-19.
    MeSH term(s) Humans ; COVID-19 ; Cohort Studies ; Critical Illness ; Sweden/epidemiology ; Intensive Care Units ; Registries
    Language English
    Publishing date 2023-09-27
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2267670-3
    ISSN 1932-6203 ; 1932-6203
    ISSN (online) 1932-6203
    ISSN 1932-6203
    DOI 10.1371/journal.pone.0292186
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  6. Article ; Online: Patient satisfaction with continuous epidural analgesia after major surgical procedures at a Swedish University hospital.

    Semenas, Egidijus / Hultström, Michael

    PloS one

    2020  Volume 15, Issue 7, Page(s) e0235636

    Abstract: Objective: The use of epidural analgesia after major surgery is a well-established analgesia method. Epidural analgesia for postoperative pain relief needs to be monitored regularly in order to evaluate patient satisfaction and avoid side effects. ... ...

    Abstract Objective: The use of epidural analgesia after major surgery is a well-established analgesia method. Epidural analgesia for postoperative pain relief needs to be monitored regularly in order to evaluate patient satisfaction and avoid side effects. However, due to the new available regional techniques, the role of epidural analgesia is being questioned and data about patient satisfaction is lacking. The current study was designed to evaluate patient satisfaction with epidural analgesia, its efficacy and reasons for premature termination of epidural analgesia.
    Materials and methods: We conducted a retrospective survey of all patients who undergone surgery at Uppsala University hospital between October 2012 and January 2014 requiring continuous epidural analgesia for postoperative pain relief. Patients' satisfaction with epidural analgesia and its effectiveness were evaluated by using paper questionnaire.
    Results: During the study period 579 epidurals were inserted in patients scheduled for vascular, hepatobiliary, esophageal and other major abdominal surgery. The average treatment time was 3.8±1.8 days. Epidural analgesia consisted either of bupivacaine 0.1%+sufentanil 1 μg/ml solution or ropivacaine 0.2% solution. If patient needed opiates during treatment with epidural analgesia, only ropivacaine 0,2% solution was used. 494 (87.9%) patients were satisfied with their analgesia with no difference in satisfaction between sexes being observed. In 62 cases (11.2%) patient controlled analgesia was used on top of epidural analgesia with ropivacaine 0.2% solution, and 50.8% of patients were satisfied in this group. 514 (91.4%) patients were reported as having a good effect, 24 (4.3%) patients reported or were tested to show some effect, and 24 (4.3%) had no effect. No major neurological complications (epidural hematoma or abscess) were observed.
    Conclusions: Our retrospective survey indicates that patients are satisfied with continuous epidural analgesia used in major surgery.
    MeSH term(s) Abdomen/surgery ; Adolescent ; Adult ; Aged ; Aged, 80 and over ; Analgesia, Epidural ; Analgesia, Patient-Controlled ; Anesthetics, Local/administration & dosage ; Female ; Hospitals, University ; Humans ; Male ; Middle Aged ; Pain Management ; Pain, Postoperative/drug therapy ; Patient Satisfaction ; Retrospective Studies ; Surveys and Questionnaires ; Sweden ; Young Adult
    Chemical Substances Anesthetics, Local
    Language English
    Publishing date 2020-07-02
    Publishing country United States
    Document type Journal Article
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0235636
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  7. Article: Correction: Berghäll et al. The Evolution of Blood Cell Phenotypes, Intracellular and Plasma Cytokines and Morphological Changes in Critically Ill COVID-19 Patients.

    Berghäll, Elisabeth / Hultström, Michael / Frithiof, Robert / Lipcsey, Miklos / Hahn-Strömberg, Victoria

    Biomedicines

    2023  Volume 11, Issue 11

    Abstract: In original publication [ ... ]. ...

    Abstract In original publication [...].
    Language English
    Publishing date 2023-11-03
    Publishing country Switzerland
    Document type Published Erratum
    ZDB-ID 2720867-9
    ISSN 2227-9059
    ISSN 2227-9059
    DOI 10.3390/biomedicines11112965
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  8. Article ; Online: Strain on the ICU resources and patient outcomes in the COVID-19 pandemic: A Swedish national registry cohort study.

    Stattin, Karl / Frithiof, Robert / Hultström, Michael / Lipcsey, Miklos / Kawati, Rafael

    European journal of anaesthesiology

    2022  Volume 40, Issue 1, Page(s) 13–20

    Abstract: Background: The Coronavirus 2019 (COVID-19) pandemic has led to an unprecedented strain on the ICU resources. It is not known how the ICU resources employed in treating COVID-19 patients are related to inpatient characteristics, use of organ support or ... ...

    Abstract Background: The Coronavirus 2019 (COVID-19) pandemic has led to an unprecedented strain on the ICU resources. It is not known how the ICU resources employed in treating COVID-19 patients are related to inpatient characteristics, use of organ support or mortality.
    Objectives: To investigate how the use of ICU resources relate to use of organ support and mortality in COVID-19 patients.
    Design: A national register-based cohort study.
    Setting: All Swedish ICUs from March 2020 to November 2021.
    Patients: All patients admitted to Swedish ICUs with a primary diagnosis of COVID-19 reported to the national Swedish Intensive Care Register (SIR).
    Main outcome measures: Organ support (mechanical ventilation, noninvasive ventilation, high-flow oxygen therapy, prone positioning, surgical and percutaneous tracheostomy, central venous catheterisation, continuous renal replacement therapy and intermittent haemodialysis), discharge at night, re-admission, transfer and ICU and 30-day mortality.
    Results: Seven thousand nine hundred and sixty-nine patients had a median age of 63 years, and 70% were men. Median daily census was 167% of habitual census, daily new admissions were 20% of habitual census and the median occupancy was 82%. Census and new admissions were associated with mechanical ventilation, OR 1.37 (95% CI 1.28 to 1.48) and OR 1.44 (95% CI 1.13 to 1.84), respectively, but negatively associated with noninvasive ventilation, OR 0.83 (95% CI 0.77 to 0.89) and OR 0.40 (95% CI 0.30 to 52) and high-flow oxygen therapy, OR 0.72 (95% CI 0.67 to 0.77) and OR 0.77 (95% CI 0.61 to 0.97). Occupancy above 90% of available beds was not associated with mechanical ventilation or noninvasive ventilation, but with high-flow oxygen therapy, OR 1.36 (95% CI 1.21 to 1.53). All measures of pressure on resources were associated with transfer to other hospitals, but none were associated with discharge at night, ICU mortality or 30-day mortality.
    Conclusions: Pressure on ICU resources was associated with more invasive respiratory support, indicating that during these times, ICU resources were reserved for sicker patients.
    MeSH term(s) Humans ; Middle Aged ; Pandemics ; Cohort Studies ; COVID-19/epidemiology ; COVID-19/therapy ; Oxygen
    Chemical Substances Oxygen (S88TT14065)
    Language English
    Publishing date 2022-09-27
    Publishing country England
    Document type Journal Article
    ZDB-ID 605770-6
    ISSN 1365-2346 ; 0265-0215
    ISSN (online) 1365-2346
    ISSN 0265-0215
    DOI 10.1097/EJA.0000000000001760
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  9. Article ; Online: Intermittent thoracic resuscitative endovascular balloon occlusion of the aorta improves renal function compared to 60 min continuous application after porcine class III hemorrhage.

    Brännström, Andreas / Hultström, Michael / Gustavsson, Jenny / Aurfan, Zabih / Günther, Mattias

    European journal of trauma and emergency surgery : official publication of the European Trauma Society

    2022  Volume 49, Issue 3, Page(s) 1303–1313

    Abstract: Background: Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) may be considered for stabilization of patients with hemorrhage from below the diaphragm. Occluding the aorta is a powerful means of hemorrhagic control but is also associated ...

    Abstract Background: Resuscitative Endovascular Balloon Occlusion of the Aorta (REBOA) may be considered for stabilization of patients with hemorrhage from below the diaphragm. Occluding the aorta is a powerful means of hemorrhagic control but is also associated with acute kidney injury, which increases mortality in trauma patients. Allowing for intermittent distal blood flow during REBOA application (iREBOA) could decrease this risk, but circulatory consequences have not been sufficiently elucidated. Therefore, we investigated circulatory effects and the renal artery blood flow (RBF) in iREBOA versus continuous, complete aortic occlusion (cREBOA).
    Methods: In a porcine model of uncontrolled class III hemorrhage (34% estimated total blood volume, mean 1360 mL), swine (n = 12, mean weight 60.3 kg) were randomly assigned to iREBOA: 3-min full deflation every 10 min (n = 6), or cREBOA (n = 6), for 60 min of thoracic (zone I) application. The animals then underwent 60 min of reperfusion (critical care phase).
    Results: Survival was 100% in iREBOA and 83% in cREBOA. The intermittent balloon deflation protocol was hemodynamically tolerable in 63% of reperfusion intervals. Systolic blood pressure decreased during the reperfusion intervals in iREBOA animals (mean 108 mm Hg versus 169 mm Hg; p < 0.005). No differences were detected in heart rate, cardiac output or stroke volume between methods. Troponin I increased in cREBOA after 60 min (mean 666-187 ng/L, p < 0.05). The norepinephrine requirement increased in cREBOA during reperfusion (mean infusion time 12.5-5.5 min; p < 0.05). Total ischemic time decreased in iREBOA (60.0-48.6 min; p < 0.001). RBF increased in iREBOA during balloon deflations and after 60 min reperfusion (61%-39% of baseline RBF; p < 0.05). Urine output increased in iREBOA (mean 135-17 mL; p < 0.001). Nephronal osteopontin, a marker of ischemic injury, increased in cREBOA (p < 0.05).
    Conclusion: iREBOA was survivable, did not cause rebleeding, decreased the total ischemic time and increased the renal blood flow, urine output and decreased renal ischemic injury compared to cREBOA. Intermittent reperfusions during REBOA may be preferred to be continuous, complete occlusion in prolonged application to improve renal function.
    MeSH term(s) Swine ; Animals ; Shock, Hemorrhagic/therapy ; Hemorrhage ; Aorta ; Resuscitation/methods ; Kidney/physiology ; Balloon Occlusion/methods ; Endovascular Procedures/methods ; Disease Models, Animal
    Language English
    Publishing date 2022-12-05
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 2275480-5
    ISSN 1863-9941 ; 1863-9933
    ISSN (online) 1863-9941
    ISSN 1863-9933
    DOI 10.1007/s00068-022-02189-2
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  10. Article ; Online: Prior physical illness predicts death better than acute physiological derangement on intensive care unit admission in COVID-19

    Karl Stattin / Michael Hultström / Robert Frithiof / Miklos Lipcsey / Rafael Kawati

    PLoS ONE, Vol 18, Iss 9, p e

    A Swedish registry study.

    2023  Volume 0292186

    Abstract: COVID-19 is associated with prolonged intensive care unit (ICU) stay and considerable mortality. The onset of persistent critical illness, defined as when prior illness predicts death better than acute physiological derangement, has not been studied in ... ...

    Abstract COVID-19 is associated with prolonged intensive care unit (ICU) stay and considerable mortality. The onset of persistent critical illness, defined as when prior illness predicts death better than acute physiological derangement, has not been studied in COVID-19. This national cohort study based on the Swedish Intensive Care Registry (SIR) included all patients admitted to a Swedish ICU due to COVID-19 from 6 March 2020 to 9 November 2021. Simplified Acute Physiology Score-3 (SAPS3) Box 1 was used as a measure of prior illness and Box 3 as a measure of acute derangement to evaluate the onset and importance of persistent critical illness in COVID-19. To compare predictive capacity, the area under receiver operating characteristic (AUC) of SAPS3 and its constituent Box 1 and 3 was calculated for 30-day mortality. In 7 969 patients, of which 1 878 (23.6%) died within 30 days of ICU admission, the complete SAPS3 score had acceptable discrimination: AUC 0.75 (95% CI 0.74 to 0.76) but showed under prediction in low-risk patients and over prediction in high-risk patients. SAPS3 Box 1 showed markedly better discrimination than Box 3 (AUC 0.74 vs 0.65, P<0,0001). Using custom logistic models, the difference in predictive performance of prior and acute illness was validated, AUC 0.76 vs AUC 0.69, p<0.0001. Prior physical illness predicts death in COVID-19 better than acute physiological derangement during ICU stay, and the whole SAPS3 score is not significantly better than just prior illness. The results suggests that COVID-19 may exhibit similarities to persistent critical illness immediately from ICU admission, potentially because of long median ICU length-of-stay. Alternatively, the variables in the acute physiological derangement model may not adequately capture the severity of illness in COVID-19.
    Keywords Medicine ; R ; Science ; Q
    Subject code 610
    Language English
    Publishing date 2023-01-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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