Relationship between enuresis and obstructive sleep apnea–hypopnea syndrome in children

OBJECTIVE: We explored the relationship between enuresis and obstructive sleep apnea–hypopnea syndrome (OSAHS) in children and influencing factors of enuresis with OSAHS. METHODS: We recruited 196 children ≥5 years old from the otolaryngology outpatient department, who experienced snoring and underwent nasopharynx lateral radiography and in-laboratory polysomnography. We analyzed correlations between the apnea–hypopnea index (AHI) and lowest oxygen saturation (L-SaO2) with age, body mass index (BMI), tonsil size, and adenoidal–nasopharyngeal (A/N) ratio using the Pearson correlation test. Differences in severe OSAHS prevalence, age, AHI, L-SaO2, tonsil size, and A/N ratio between children with and without enuresis were assessed using the chi-square test and t-test. Risk factors of enuresis were analyzed using logistic regression. Follow-up was conducted to assess remission in children with enuresis after adenotonsillectomy. RESULTS: BMI, tonsil size, and A/N ratio were correlated with AHI and L-SaO2. Severe OSAHS prevalence, AHI, tonsil size, and A/N ratio were higher and L-SaO2 were lower in children with enuresis. Logistic regression showed that BMI, AHI, tonsil size, and sleep apnea were risk factors for enuresis. CONCLUSIONS: Our study findings showed that enuresis was associated with OSAHS in children. Adenotonsillectomy may improve the symptoms of enuresis.