Gardner Mark, Randhawa Sharmil, Malouf Gordon, Reynolds Karen J
Annu Int Conf IEEE Eng Med Biol Soc. 2018 Jul;2018:4363-4366. doi: 10.1109/EMBC.2018.8513399.
A Positive Airway Pressure mask was modified to be able to measure the heart rate of the wearer during Positive Airway Pressure (PAP) therapy. The mask was modified by attaching sensors to measure Electrocardiography (ECG) and Photoplethysmography (PPG) signals, from which a heart rate was extracted. The ECG signal was recorded using stainless steel electrodes positioned on the wearer's head and neck. The PPG signal was measured from the wearer's forehead using a reflectance pulse oximeter attached to the mask. The modified device was tested on 19 healthy participants (mean age30.5 ± 9 years) in a simulated sleeping environment. For both the ECG and PPG signals, the device was able to correctly identify more than 95% of heartbeats for the majority of the participants. However, it was found that by combining the ECG and PPG heartbeat data, the percentage of heartbeats that could be detected was increased to 99%. The results showed that it may be possible to use this device to monitor sleep apnoea patients during PAP therapy in their homes.
对一款正压通气面罩进行了改进，使其能够在正压通气（PAP）治疗期间测量佩戴者的心率。通过连接传感器来测量心电图（ECG）和光电容积脉搏波描记法（PPG）信号对该面罩进行了改进，然后从中提取心率。使用放置在佩戴者头部和颈部的不锈钢电极记录ECG信号。使用连接在面罩上的反射式脉搏血氧仪从佩戴者的前额测量PPG信号。在模拟睡眠环境中，对19名健康参与者（平均年龄30.5±9岁）测试了这款改进后的设备。对于ECG和PPG信号，该设备能够为大多数参与者正确识别超过95%的心跳。然而，研究发现，通过将ECG和PPG心跳数据相结合，可检测到的心跳百分比增加到了99%。结果表明，在家中对睡眠呼吸暂停患者进行PAP治疗期间，使用该设备进行监测或许是可行的。
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