Women & Infants' Hospital, The Warren Alpert Medical School of Brown University, Providence, RI, USA.
University of California-San Diego, San Diego, CA, USA.
J Perinatol. 2021 Jul;41(7):1725-1731. doi: 10.1038/s41372-021-00967-1. Epub 2021 Mar 1.
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.
评估使用普通数码摄像机测量健康婴儿心率和检测血氧饱和度的可行性。
通过检测 28 名婴儿前额的微小颜色变化，使用摄像机测量心率和血氧饱和度，并与标准脉搏血氧仪测量值进行比较。多元回归分析了婴儿特征与心率测量精度之间的关系。
摄像机心率测量的平均偏差为-4.2 次/分钟（BPM），95%一致性界限为±43.8 BPM。摄像机检测到的饱和度为 75%敏感（15/20），阳性预测值为 20%（15/74）。较低的出生体重与更精确的心率测量值独立相关（每公斤 8.05 BPM，[95%CI 0.764-15.3]）。
数码摄像机可提供准确但不精确的婴儿心率测量值，可能是一种粗略的血氧饱和度筛查工具。
