• Journal of critical care · Feb 2019

    Observational Study

    Rapid response team review of hemodynamically unstable ward patients: The accuracy of cardiac index assessment.

    • Christopher T Eyeington, Patryck Lloyd-Donald, Matthew J Chan, Glenn M Eastwood, Helen Young, Leah Peck, Daryl A Jones, and Rinaldo Bellomo.
    • Department of Intensive Care, Austin Hospital, Melbourne, Victoria, Australia.
    • J Crit Care. 2019 Feb 1; 49: 187-192.

    PurposeIntensive care doctors commonly attend rapid response team (RRT) reviews of hospital-ward patients with hemodynamic instability and estimate the patient's likely cardiac index (CI). We aimed to non-invasively measure the CI of such patients and assess the level of agreement between such measurements and clinically estimated CI categories (low <2L/min/m2, normal 2-2.99L/min/m2 or high ≥3L/min/m2).Materials And MethodsA prospective, observational study of non-invasive measurement and clinical estimation of CI categories in 50 adult hospital-ward patients who activated the RRT for 'hemodynamic instability' (tachycardia > 100BPM or hypotension < 90mmHg or both).ResultsThe CI was measured in 47/50(94%) patients and the mean CI was 3.5(95% CI 3.2-3.7) L/min/m2. Overall, 30(64%) patients had a high CI, 13(28%) and 4(9%) had a normal and a low CI, respectively. The level of agreement between measured and clinically estimated CI categories was low(19.2%). Sensitivity and positive predictive values of clinical estimation were low(0% and 3.3% for high CI, and 0% and 50% for low CI, respectively).ConclusionsNon-invasive CI measurement was possible in almost all hospital-ward patients triggering RRT review for hemodynamic instability. In such patients, the CI was high, and intensive care clinicians were unable to identify a low or a high CI state.Copyright © 2018 Elsevier Inc. All rights reserved.

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