ObjectivePreliminary study on the clinical diagnostic value of portable sleep monitor(PM) in children with obstructive sleep apnea hypopnea syndrome (OSAHS).MethodsThirtysix children with regular sleep snoring were randomly selected from outpatients, including 23 males and 13 females; age(4~13) years, average age (7±2.6) years old. PM and polysomnography(PSG) were used to monitor the synchronized sleep and respiratory of children with OSAHS throughout the night. At the same time, the disease specific quality of children with obstructive sleep apnea 18 items questionnaire(OSA18) was completed to analyze the sensitivity and specificity of PM with comparing and analyzing the correlation between the clinical parameters of the two sleep monitors, and the correlation between OSA18 questionnaire and the sleep apnea hypopnea index (AHI).ResultsAccording to the results of PSG monitoring about the severity of OSAHS in children, there were 2 cases of simple snoring, 5 cases of mild snoring, 12 cases of moderate snoring, and 17 cases of severe snoring. According to PM analysis, there were 1 case of simple snoring, 6 cases of mild snoring, 10 cases of moderate snoring, and 19 cases of severe snoring. The sensitivity, specificity and accuracy of PM were 97.1%, 100.0% and 97.2% respectively. There were correlation between AHI, lowest blood oxygen saturation (LSaO2) and average blood oxygen saturation (MSaO2) of two sleep monitors. The OSA18 questionnaire is positively correlated with the AHI monitored by PM and PSG (r=0.875, 0.874, all P<0.05).ConclusionsPM assisted OSA18 questionnaire has high clinical diagnostic value in children with OSAHS, and PM has a good correlation with PSG indicators. It is easy to operate and worthy of clinical application.