• Murat Daş, Okan Bardakci, Duygu Siddikoglu, Gökhan Akdur, Musa Caner Yilmaz, Okhan Akdur, and Yavuz Beyazit.
• Department of Emergency Medicine, Faculty of Medicine, Çanakkale Onsekiz Mart University, 17020 Çanakkale, Turkey.
• Am J Emerg Med. 2020 Oct 1; 38 (10): 2055-2059.

IntroductionPeripheral perfusion index (PPI) and shock index (SI) are considered valuable predictors of hospital outcome and mortality in various operative and intensive care settings. In the present study, we evaluated the prognostic capabilities of these parameters for performing emergency department (ED) triage, as represented by the emergency severity index (ESI).MethodsThis prospective cross-sectional study included 367 patients aged older than 18 years who visited the ED of a tertiary referral hospital. The ESI triage levels with PPI, SI, and other basic vital sign parameters were recorded for each patient. The hospital outcome of the patients at the end of the ED period, such as discharge, admission to the hospital and death were recorded.ResultsA total of 367 patients (M/F: 178/189) admitted to the ED were categorized according to ESI and included in the study. A decrease in diastolic BP, SpO2 and PPI increased the likelihood of hospitalization and 30-day mortality. Based on univariate analysis, a significant improvement in performance was found by using age, diastolic BP, mean arterial pressure, SpO2, SI and PPI in terms of predicting high acuity level patients (ESI < 3). In the multivariable analysis only SpO2 and PPI were found to predict ESI < 3 patients.ConclusionPeripheral perfusion index and SI as novel triage instruments might provide useful information for predicting hospital admission and mortality in ED patients. The addition of these parameters to existing triage instruments such as ESI could enhance the triage specificity in unselected patients admitted to ED.Copyright © 2020 Elsevier Inc. All rights reserved.

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