Cameron Green1, William Bonavia1, Candice Toh2, Ravindranath Tiruvoipati1,3. 1. Department of Intensive Care Medicine, Peninsula Health, Frankston, VIC, Australia. 2. Department of Cardiology, Peninsula Health, Frankston, VIC, Australia. 3. Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, VIC, Australia.
Abstract
OBJECTIVES: To investigate the ability of available delirium risk assessment tools to identify patients at risk of delirium in an Australian tertiary ICU. DESIGN: Prospective observational study. SETTING: An Australian tertiary ICU. PATIENTS: All patients admitted to the study ICU between May 8, 2017, and December 31, 2017, were assessed bid for delirium throughout their ICU stay using the Confusion Assessment Method for ICU. Patients were included in this study if they remained in ICU for over 24 hours and were excluded if they were delirious on ICU admission, or if they were unable to be assessed using the Confusion Assessment Method for ICU during their ICU stay. Delirium risk was calculated for each patient using the prediction of delirium in ICU patients, early prediction of delirium in ICU patients, and Lanzhou models. Data required for delirium predictor models were obtained retrospectively from patients medical records. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: There were 803 ICU admissions during the study period, of which 455 met inclusion criteria. 35.2% (n = 160) were Confusion Assessment Method for ICU positive during their ICU admission. Delirious patients had significantly higher Acute Physiology and Chronic Health Evaluation III scores (median, 72 vs 54; p < 0.001), longer ICU (median, 4.8 vs 1.8 d; p < 0.001) and hospital stay (16.0 vs 8.16 d; p < 0.001), greater requirement of invasive mechanical ventilation (70% vs 21.4%; p < 0.001), and increased ICU mortality (6.3% vs 2.4%; p = 0.037). All models included in this study displayed moderate to good discriminative ability. Area under the receiver operating curve for the prediction of delirium in ICU patients was 0.79 (95% CI, 0.75-0.83); recalibrated prediction of delirium in ICU patients was 0.79 (95% CI, 0.75-0.83); early prediction of delirium in ICU patients was 0.72 (95% CI, 0.67-0.77); and the Lanzhou model was 0.77 (95% CI, 0.72-0.81). CONCLUSIONS: The predictive models evaluated in this study demonstrated moderate to good discriminative ability to predict ICU patients' risk of developing delirium. Models calculated at 24-hours post-ICU admission appear to be more accurate but may have limited utility in practice.
OBJECTIVES: To investigate the ability of available delirium risk assessment tools to identify patients at risk of delirium in an Australian tertiary ICU. DESIGN: Prospective observational study. SETTING: An Australian tertiary ICU. PATIENTS: All patients admitted to the study ICU between May 8, 2017, and December 31, 2017, were assessed bid for delirium throughout their ICU stay using the Confusion Assessment Method for ICU. Patients were included in this study if they remained in ICU for over 24 hours and were excluded if they were delirious on ICU admission, or if they were unable to be assessed using the Confusion Assessment Method for ICU during their ICU stay. Delirium risk was calculated for each patient using the prediction of delirium in ICU patients, early prediction of delirium in ICU patients, and Lanzhou models. Data required for delirium predictor models were obtained retrospectively from patients medical records. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: There were 803 ICU admissions during the study period, of which 455 met inclusion criteria. 35.2% (n = 160) were Confusion Assessment Method for ICU positive during their ICU admission. Delirious patients had significantly higher Acute Physiology and Chronic Health Evaluation III scores (median, 72 vs 54; p < 0.001), longer ICU (median, 4.8 vs 1.8 d; p < 0.001) and hospital stay (16.0 vs 8.16 d; p < 0.001), greater requirement of invasive mechanical ventilation (70% vs 21.4%; p < 0.001), and increased ICU mortality (6.3% vs 2.4%; p = 0.037). All models included in this study displayed moderate to good discriminative ability. Area under the receiver operating curve for the prediction of delirium in ICU patients was 0.79 (95% CI, 0.75-0.83); recalibrated prediction of delirium in ICU patients was 0.79 (95% CI, 0.75-0.83); early prediction of delirium in ICU patients was 0.72 (95% CI, 0.67-0.77); and the Lanzhou model was 0.77 (95% CI, 0.72-0.81). CONCLUSIONS: The predictive models evaluated in this study demonstrated moderate to good discriminative ability to predict ICU patients' risk of developing delirium. Models calculated at 24-hours post-ICU admission appear to be more accurate but may have limited utility in practice.
Authors: Claudia Dziegielewski; Charlenn Skead; Toros Canturk; Colleen Webber; Shannon M Fernando; Laura H Thompson; Madison Foster; Vanja Ristovic; Peter G Lawlor; Dipayan Chaudhuri; Chintan Dave; Brent Herritt; Shirley H Bush; Salmaan Kanji; Peter Tanuseputro; Kednapa Thavorn; Erin Rosenberg; Kwadwo Kyeremanteng Journal: Crit Care Res Pract Date: 2021-04-24
Authors: Sung Eun Kim; Ryoung-Eun Ko; Soo Jin Na; Chi Ryang Chung; Ki Hong Choi; Darae Kim; Taek Kyu Park; Joo Myung Lee; Young Bin Song; Jin-Oh Choi; Joo-Yong Hahn; Seung-Hyuk Choi; Hyeon-Cheol Gwon; Jeong Hoon Yang Journal: Front Cardiovasc Med Date: 2022-08-03