Study on the relationship between the stability of PI value and SpO2 alarms of neonatal monitor
10.3969/j.issn.1672-8270.2025.02.019
- VernacularTitle:新生儿监护仪灌注指数值的稳定性与血氧饱和度报警关系研究
- Author:
Biaorui ZHANG
1
;
Yan XUE
1
;
Hongcheng LIU
1
;
Yanfei WANG
1
Author Information
1. 山西省儿童医院医学工程部 太原 030013
- Publication Type:Journal Article
- Keywords:
Neonatal monitor;
Perfusion index(PI)stability;
Pulse oximetry(SpO2)false alarm;
Optimal algorithm
- From:
China Medical Equipment
2025;22(2):104-108
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore the relationship between the stability of the pulse perfusion index(PI)value and Pulse oximetry(SpO2)alarms in monitor for neonates,so as to reduce the false alarm rate.Methods:A monitor with dual blood oxygen module(Module 1 and Module 2)was used to simultaneously monitor different parts of neonates.If both modules alarmed simultaneously,it was considered as a valid alarm.If only one module alarmed while the others was normal,it was considered as an invalid alarm.The PI values were classified into A,B and C categories based on the calculated variance of PI values.The distribution of valid alarms in the three categories was analyzed by using statistical method.The eighteen neonates who admitted to the neonatal department of Shanxi Children's Hospital from May11,2023 to May 19,2023 were monitored,with an average monitoring time of 7.3 hours for each case.The false alarm rates of the monitor with dual blood oxygen module were compared among categories A,B and C,as well as the correlations between different PI values and SpO2 alarms.Results:The times of monitored valid alarm of two non-invasive blood oxygen modules(Module 1 and Module 2)were 41 times,and the false alarm rates of categories A and C were significantly higher than that of category B.The times of categories A,B and C of the monitored PI values of Module 1 and Module 2 were respectively(6,34,1)and(8,30,3),which appeared weak correlation with the times of valid alarm of SpO2(r=0.230,0.259,P<0.05).The result of univariate binary logistic regression indicated PI value could not predict SpO2 alarms in SpO2 alarm.Conclusion:PI value can reflect the affected accuracy of SpO2 alarm when the data that are collected by prober are instability.The PI value that is collected by single SpO2 prober can indirectly reflect that the instable data of collection can affect the correctness of SpO2 alarm,while the simultaneous monitor of adopting monitor with dual oxygen module can improve the accuracy of SpO2 alarms in monitoring for neonates.
