1. Infant heart-rate measurement and oxygen desaturation detection with a digital video camera using imaging photoplethysmography
- Author
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Matthew E Wieler, G. Jesse Bender, Hiral Mehta, Thomas Murphy, and Mira Blecherman
- Subjects
medicine.medical_specialty ,Oxygen desaturation ,medicine.diagnostic_test ,business.industry ,Digital video ,Obstetrics and Gynecology ,Video camera ,law.invention ,03 medical and health sciences ,Pulse oximetry ,0302 clinical medicine ,Heart rate measurement ,law ,030225 pediatrics ,Internal medicine ,Photoplethysmogram ,Pediatrics, Perinatology and Child Health ,Heart rate ,Cardiology ,Medicine ,030212 general & internal medicine ,business ,Oxygen saturation (medicine) - Abstract
To assess the feasibility of using an ordinary digital video camera to measure heart rate and detect oxygen desaturations in healthy infants. Heart rate and oxygen saturation were measured with a video camera by detecting small color changes in 28 infants’ foreheads and compared with standard pulse oximetry measures. Multivariable regression examined the relationship between infant characteristics and heart-rate measurement precision. The average bias of camera heart-rate measures was −4.2 beats per minute (BPM) and 95% limits of agreement were ±43.8 BPM. Desaturations detected by camera were 75% sensitive (15/20) and had a positive predictive value of 20% (15/74). Lower birth-weight was independently correlated with more precise heart-rate measures (8.05 BPM per kg, [95% CI 0.764–15.3]). A digital video camera provides accurate but imprecise measures of infant heart rate and may provide a rough screening tool for oxygen desaturations.
- Published
- 2021
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