Respiratory care · 2025
Accuracy of a Noncontact Breathing Frequency Monitoring Technology in the Neonatal ICU.
СтатьяНаблюдательное исследованиеНазвание и аннотация: Перевод в очереди
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Ren Jianbing, Chen Xiaotong, Yao Nan, Xiao Guoliang, Yang Chuanzhong, Nie Chuan
Аннотация
BACKGROUND: Breathing frequency is a sensitive indicator of a neonate patient's condition and a crucial parameter in the neonatal ICU (NICU). However, conventional methods require sensors to be adhered to the newborn's sensitive skin. This study assesses a noncontact respiratory monitor, using linear frequency modulation continuous wave radar, to determine the monitor's accuracy when used in the NICU setting.
METHODS: An observational study was conducted on the noncontact respiration module produced by Mindray, connected to a BeneVisionN12 patient monitor. This unit collected data on breathing frequency; at the same time, the patient breathing frequency was also being measured using a CO2 monitor (accepted standard). Statistical analyses were performed to assess the agreement between the 2 measurements and to assess whether this noncontact monitor is sufficiently accurate for clinical use.
RESULTS: 20 neonatal patients at 2 NICUs were enrolled in the study. The mean bias between the radar-derived and CO2-derived breathing frequency was -0.29 breaths/min (95% CI: -0.53 to -0.04); root-mean-square error was 2.60 breaths/min; concordance correlation coefficient was 0.98; and Pearson correlation coefficient was 0.98. Subgroup analyses grouped by body weight show that the technology has particularly high accuracy and clinical utility for neonates with low body weight (<1.5 kg).
CONCLUSIONS: The noncontact respiration monitoring technology and module developed by Mindray showed a high degree of agreement with the CO2 reference standard and met the standard of accuracy required for clinical use.
METHODS: An observational study was conducted on the noncontact respiration module produced by Mindray, connected to a BeneVisionN12 patient monitor. This unit collected data on breathing frequency; at the same time, the patient breathing frequency was also being measured using a CO2 monitor (accepted standard). Statistical analyses were performed to assess the agreement between the 2 measurements and to assess whether this noncontact monitor is sufficiently accurate for clinical use.
RESULTS: 20 neonatal patients at 2 NICUs were enrolled in the study. The mean bias between the radar-derived and CO2-derived breathing frequency was -0.29 breaths/min (95% CI: -0.53 to -0.04); root-mean-square error was 2.60 breaths/min; concordance correlation coefficient was 0.98; and Pearson correlation coefficient was 0.98. Subgroup analyses grouped by body weight show that the technology has particularly high accuracy and clinical utility for neonates with low body weight (<1.5 kg).
CONCLUSIONS: The noncontact respiration monitoring technology and module developed by Mindray showed a high degree of agreement with the CO2 reference standard and met the standard of accuracy required for clinical use.