Doumit Michael, Ledwos Rianna, Plush Leanne, Chuang Sandra, Gray Melinda, Jaffe Adam, McBride Jamie
Department of Health Sciences, Macquarie University, Sydney, New South Wales, Australia
Physiotherapy, Sydney Children's Hospitals Network Randwick, Randwick, New South Wales, Australia.
Arch Dis Child. 2022 Aug;107(8):752-754. doi: 10.1136/archdischild-2021-322536. Epub 2022 Mar 11.
To investigate the validity and home use of a personal ultrasonic spirometer.
Supervised spirometry was performed using laboratory equipment and a personal ultrasonic spirometer. In addition, the ability of children to perform acceptable spirometry during supervised telehealth appointments at home was assessed.
59 children completed spirometry on both devices. There was high between-device intraclass correlation coefficient (ICC) for forced expiratory volume in 1 s (FEV) and forced vital capacity (FVC): ICC 0.991 (95% CI 0.985 to 0.995) and 0.989 (95% CI 0.981 to 0.993), respectively. Bland-Altman analysis revealed mean bias and limits of agreement of -0.01 (-0.22 to 0.24) L for FEV and -0.02 (-0.30 to 0.33) L for FVC. 125 of 140 (89%) supervised telehealth spirometry sessions were acceptable.
There was excellent reliability in between-device measurements; however, the limits of agreement were wide. Therefore, caution is needed if the device is used interchangeably with laboratory equipment. High success rates of telehealth spirometry sessions indicate the device is suitable for this application.
研究个人超声肺活量计的有效性及家庭使用情况。
使用实验室设备和个人超声肺活量计进行监督下的肺活量测定。此外，还评估了儿童在家中接受远程医疗监督预约时进行可接受的肺活量测定的能力。
59名儿童在两种设备上均完成了肺活量测定。一秒用力呼气量（FEV）和用力肺活量（FVC）的设备间组内相关系数（ICC）较高：分别为ICC 0.991（95%可信区间0.985至0.995）和0.989（95%可信区间0.981至0.993）。Bland-Altman分析显示，FEV的平均偏差和一致性界限为-0.01（-0.22至0.24）L，FVC为-0.02（-0.30至0.33）L。140次监督下的远程医疗肺活量测定中有125次（89%）是可接受的。
设备间测量具有出色的可靠性；然而，一致性界限较宽。因此，如果该设备与实验室设备互换使用，需要谨慎。远程医疗肺活量测定的高成功率表明该设备适用于此应用。
