Abstract:Objective To investigate the clinical value of continuous sleep pulse oxygen saturation (SpO2) monitoring in the diagnosis of recurrent vertigo of children (RVC) via observation of their sleep SpO2. Methods Fifty children with RVC and 20 without RVC were selected. The children of RVC group were subdivided into vertigo attack group (n=29) and non-vertigo attack group (n=21) according to whether vertigo occurred repeatedly within 2 weeks, and subdivided into mild, moderate and severe groups based on vertigo questionnaire results. All children underwent continuous sleep SpO2 monitoring, and the characteristic differences of continuous sleep SpO2 between the RVC group and the control group were analyzed. Results ①The abnormal rates of sleep SpO2 in the RVC group and the control group were 46.0% (23/50) and 5.0% (1/20), and the difference was statistically significant (P<0.05). ②The abnormal rates of SpO2 in the vertigo attack and non-attack groups were 65.5% (19/29) and 19.0% (4/21), and the difference was also statistically significant (P<0.05). ③ There were significant differences in the average SpO2 and the lowest SpO2 among the vertigo attack group, the vertigo non-attack group and the control group (P<0.05). ④The differences were statistically significant in the average SpO2 and lowest SpO2 among the mild, moderate, severe RVC groups and the control group (P<0.05). Conclusion Continuous sleep SpO2 has a certain correlation with RVC, especially during the attack of vertigo, and also has a relationship with the severity of the disease. Sleep SpO2 monitoring is non-invasive, simple and easy to operate, and can be used as one of the auxiliary examinations for the diagnosis of RVC, which has certain clinical significance.