Determination of saturation, heart rate, and respiratory rate at forearm using a Nellcor (TM) forehead SpO(2)-saturation sensor

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Harju , J , Vehkaoja , A , Lindroos , V , Kumpulainen , P , Liuhanen , S , Yli-Hankala , A & Oksala , N 2017 , ' Determination of saturation, heart rate, and respiratory rate at forearm using a Nellcor (TM) forehead SpO(2)-saturation sensor ' , Journal of Clinical Monitoring and Computing , vol. 31 , no. 5 , pp. 1019-1026 . https://doi.org/10.1007/s10877-016-9940-7

Title: Determination of saturation, heart rate, and respiratory rate at forearm using a Nellcor (TM) forehead SpO(2)-saturation sensor
Author: Harju, Jarkko; Vehkaoja, Antti; Lindroos, Ville; Kumpulainen, Pekka; Liuhanen, Sasu; Yli-Hankala, Arvi; Oksala, Niku
Contributor: University of Helsinki, Clinicum
Date: 2017-10
Language: eng
Number of pages: 8
Belongs to series: Journal of Clinical Monitoring and Computing
ISSN: 1387-1307
URI: http://hdl.handle.net/10138/245625
Abstract: Alterations in arterial blood oxygen saturation, heart rate (HR), and respiratory rate (RR) are strongly associated with intra-hospital cardiac arrests and resuscitations. A wireless, easy-to-use, and comfortable method for monitoring these important clinical signs would be highly useful. We investigated whether the Nellcor (TM) OxiMask MAX-FAST forehead sensor could provide data for vital sign measurements when located at the distal forearm instead of its intended location at the forehead to provide improved comfortability and easy placement. In a prospective setting, we recruited 30 patients undergoing surgery requiring postoperative care. At the postoperative care unit, patients were monitored for two hours using a standard patient monitor and with a study device equipped with a Nellcor (TM) Forehead SpO(2) sensor. The readings were electronically recorded and compared in post hoc analysis using Bland-Altman plots, Spearman's correlation, and root-mean-square error (RMSE). Bland-Altman plot showed that saturation (SpO(2)) differed by a mean of -0.2 % points (SD, 4.6), with a patient-weighted Spearman's correlation (r) of 0.142, and an RMSE of 4.2 points. For HR measurements, the mean difference was 0.6 bpm (SD, 2.5), r = 0.997, and RMSE = 1.8. For RR, the mean difference was -0.5 1/min (4.1), r = 0.586, and RMSE = 4.0. The SpO(2) readings showed a low mean difference, but also a low correlation and high RMSE, indicating that the Nellcor (TM) saturation sensor cannot reliably assess oxygen saturation at the forearm when compared to finger PPG measurements.
Subject: Intraoperative monitoring
Plethysmography
Pulse oximetry
Heart rate
Respiratory rate
PULSE OXIMETRY
WRIST
PHOTOPLETHYSMOGRAM
ANESTHESIA
PLACEMENT
FREQUENCY
READINGS
SIGNALS
DEVICES
SITES
3126 Surgery, anesthesiology, intensive care, radiology
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