Development and validation of an international preoperative risk assessment model for postoperative delirium.

Background Postoperative delirium (POD) is a frequent complication in older adults, characterised by disturbances in attention, awareness and cognition, and associated with prolonged hospitalisation, poor functional recovery, cognitive decline, long-term dementia and increased mortality. Early ident...

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Published in:Age & Ageing Vol. 52; no. 6; pp. 1 - 11
Main Authors: Dodsworth, Benjamin T, Reeve, Kelly, Falco, Lisa, Hueting, Tom, Sadeghirad, Behnam, Mbuagbaw, Lawrence, Goettel, Nicolai, Gelsomino, Nayeli Schmutz
Format: Article
Published: Oxford University Press / USA Jun2023
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Online Access:View this record in EBSCOhost
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      dt: Jun2023
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      pub: Oxford University Press / USA
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        10.1093/ageing/afad086
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        atl: Development and validation of an international preoperative risk assessment model for postoperative delirium.
      aug:
        au:
          Dodsworth, Benjamin T
          Reeve, Kelly
          Falco, Lisa
          Hueting, Tom
          Sadeghirad, Behnam
          Mbuagbaw, Lawrence
          Goettel, Nicolai
          Gelsomino, Nayeli Schmutz
        affil:
          PIPRA AG , Zurich 8005 , Switzerland
          Institute of Data Analysis and Process Design, Zurich University of Applied Sciences , Winterthur 8400 , Switzerland
          Zühlke Engineering AG , Zürcherstrasse 39J, Schlieren 8952 , Switzerland
          Evidencio , Irenesingel 19, Haaksbergen 7481 GJ , Netherlands
          Department of Health Research Methods, Evidence, and Impact, McMaster University , Hamilton ON L8S 4L8 , Canada
          Department of Anesthesia, McMaster University , Hamilton ON L8S 4L8 , Canada
          Department of Pediatrics, McMaster University , Hamilton, ON L8S 4L8 , Canada
          Biostatistics Unit, Father Sean O'Sullivan Research Centre, St Joseph's Healthcare , Hamilton, ON L8S 4L8 , Canada
          Centre for Development of Best Practices in Health (CDBPH), Yaoundé Central Hospital , Yaoundé 12117 , Cameroon
          Division of Epidemiology and Biostatistics, Department of Global Health, Stellenbosch University , Cape Town 7600 , South Africa
          Department of Anesthesiology, University of Florida College of Medicine , Gainesville FL 32610 , USA
          Department of Clinical Research, University of Basel , Basel 4031 , Switzerland
          Department of Anaesthesia, University Hospital Basel , Spitalstrasse 21, Basel 4031 , Switzerland
      su:
        Switzerland
        Germany
        Patient care
        Old age
        Research evaluation
        Confidence intervals
        Operative surgery
        Preoperative period
        Research methodology
        Surgical complications
        Risk assessment
        Comparative studies
        Delirium
        Theory
        Descriptive statistics
        Research funding
        Prediction models
        Logistic regression analysis
        Algorithms
      sug:
        subj:
          Patient care
          Old age
          Switzerland
          Germany
          Research evaluation
          Confidence intervals
          Operative surgery
          Preoperative period
          Research methodology
          Surgical complications
          Risk assessment
          Comparative studies
          Delirium
          Theory
          Descriptive statistics
          Research funding
          Prediction models
          Logistic regression analysis
          Algorithms
      keyword:
        algorithm
        clinical practice
        older people
        postoperative delirium
        risk prediction
        algorithm
        clinical practice
        older people
        postoperative delirium
        risk prediction
      ab: Background Postoperative delirium (POD) is a frequent complication in older adults, characterised by disturbances in attention, awareness and cognition, and associated with prolonged hospitalisation, poor functional recovery, cognitive decline, long-term dementia and increased mortality. Early identification of patients at risk of POD can considerably aid prevention. Methods We have developed a preoperative POD risk prediction algorithm using data from eight studies identified during a systematic review and providing individual-level data. Ten-fold cross-validation was used for predictor selection and internal validation of the final penalised logistic regression model. The external validation used data from university hospitals in Switzerland and Germany. Results Development included 2,250 surgical (excluding cardiac and intracranial) patients 60 years of age or older, 444 of whom developed POD. The final model included age, body mass index, American Society of Anaesthesiologists (ASA) score, history of delirium, cognitive impairment, medications, optional C-reactive protein (CRP), surgical risk and whether the operation is a laparotomy/thoracotomy. At internal validation, the algorithm had an AUC of 0.80 (95% CI: 0.77–0.82) with CRP and 0.79 (95% CI: 0.77–0.82) without CRP. The external validation consisted of 359 patients, 87 of whom developed POD. The external validation yielded an AUC of 0.74 (95% CI: 0.68–0.80). Conclusions The algorithm is named PIPRA (Pre-Interventional Preventive Risk Assessment), has European conformity (ce) certification, is available at http://pipra.ch/ and is accepted for clinical use. It can be used to optimise patient care and prioritise interventions for vulnerable patients and presents an effective way to implement POD prevention strategies in clinical practice.
      pubtype: Academic Journal
      doctype: Article
      src: R
    language: English
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