• Pleunie P M Rood, Yuri van der Does, Lex M van Loon, Jelmer Alsma, Annebel Govers, and Stephanie C E Schuit.
• Department of emergency medicine, Erasmus University Medical Center, Rotterdam, The Netherlands. y.vanderdoes@erasmusmc.nl
• Am J Emerg Med. 2013 Jul 1;31(7):1012-6.

UnlabelledEmergency department (ED) patients are triaged to determine the urgency of care. The Finapres Portapres (FP) measures blood pressure (BP) and cardiac output (CO) non-invasively, and may be of added value in early detection of patients at risk for hemodynamic compromise.ObjectivesCompare non-invasive BP measurements using FP and standard automated sphygmomanometry. Compare FP cardiac index (CI), CO corrected for body surface area, of normotensive patients, to chart-based physician estimate of shock, to discover if there is additional value in CI measurements in triage.MethodsED Patients requiring BP measurement in triage were included. Systolic (SBP) and diastolic (DBP) BP were measured using both devices during a two minutes measurement. Two physicians independently judged probability of shock, defined as estimated CI ≤2.5 L min(-1) m(-2), based on chart review, three weeks after ED visit.ResultsOf a total of 112 patients 97 patients were included. Pearson's correlation coefficient was 0.50 for SBP, 0.53 for DBP, with a Blant-Altman mean bias of 11.3 (upper limit 65.3, lower limit -42.8) and 7.7 (39.2, -23.7) for SBP and DBP respectively. In normotensive patients, the group with low FP CI measurements had significantly more cases with physician-estimated shock, compared to the normal to high measurements (P = .036).ConclusionsWhen used as a triage device in the emergency department setting, non-invasive BP measurements using FP do not correlate well with automated sphygmomanometry. However, this study does indicate that use of the FP device in triage may aid physicians to recognize patients in early phases of shock.Copyright © 2013 Elsevier Inc. All rights reserved.

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