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Forehead reflectance photoplethysmography to monitor heart rate: preliminary results from neonatal patients

Grubb, Mark; Carpenter, James; Crowe, John A.; Teoh, Jeremy; Marlow, Neil; Ward, Carole; Mann, Chantelle; Sharkey, Don; Hayes-Gill, Barrie R.

Authors

Mark Grubb

James Carpenter James.Carpenter@nottingham.ac.uk

John A. Crowe John.Crowe@nottingham.ac.uk

Jeremy Teoh

Neil Marlow

Carole Ward

Chantelle Mann

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DON SHARKEY don.sharkey@nottingham.ac.uk
Clinical Associate Professor

BARRIE HAYES-GILL BARRIE.HAYES-GILL@NOTTINGHAM.AC.UK
Professor of Electronic Systems and Medical Devices



Abstract

Around 5%–10% of newborn babies require some form of resuscitation at birth and heart rate (HR) is the best guide of efficacy. We report the development and first trial of a device that continuously monitors neonatal HR, with a view to deployment in the delivery room to guide newborn resuscitation. The device uses forehead reflectance photoplethysmography (PPG) with modulated light and lock-in detection. Forehead fixation has numerous advantages including ease of sensor placement, whilst perfusion at the forehead is better maintained in comparison to the extremities. Green light (525 nm) was used, in preference to the more usual red or infrared wavelengths, to optimize the amplitude of the pulsatile signal. Experimental results are presented showing simultaneous PPG and electrocardiogram (ECG) HRs from babies (n = 77), gestational age 26–42 weeks, on a neonatal intensive care unit. In babies ≥32 weeks gestation, the median reliability was 97.7% at ±10 bpm and the limits of agreement (LOA) between PPG and ECG were +8.39 bpm and −8.39 bpm. In babies

Journal Article Type Article
Publication Date Apr 17, 2014
Journal Physiological Measurement
Print ISSN 0967-3334
Electronic ISSN 0967-3334
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 35
Issue 5
APA6 Citation Grubb, M., Carpenter, J., Crowe, J. A., Teoh, J., Marlow, N., Ward, C., …Hayes-Gill, B. R. (2014). Forehead reflectance photoplethysmography to monitor heart rate: preliminary results from neonatal patients. Physiological Measurement, 35(5), doi:10.1088/0967-3334/35/5/881
DOI https://doi.org/10.1088/0967-3334/35/5/881
Keywords photoplethysmography, neonatal, resuscitation, heart rate, delivery room
Publisher URL http://iopscience.iop.org/0967-3334/35/5/881/
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0





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