Sleep apnea in children with refractory monosymptomatic nocturnal enuresis
Authors El-Mitwalli A, Bediwy AS, Zaher AA, Belal T, Saleh ABM
Received 17 December 2013
Accepted for publication 21 January 2014
Published 13 March 2014 Volume 2014:6 Pages 37—42
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 3
Ashraf El-Mitwalli,1 Adel Salah Bediwy,2 Ashraf Ahmed Zaher,1 Tamer Belal,1 Abdel Baset M Saleh3
1Neurology Department, Faculty of Medicine, Mansoura University, Mansoura, 2Chest Department, Faculty of Medicine, Tanta University, Tanta, 3Chest Department, Faculty of Medicine, Mansoura University, Mansoura, Egypt
Background: Children with nocturnal enuresis (NE) are believed to have deep sleep with high arousal threshold. Studies suggest that obstructive sleep apnea–hypopnea syndrome (OSAHS) and NE are common problems during childhood. We sought to assess the prevalence of OSAHS in children with refractory NE and whether its severity is associated with the frequency of bedwetting.
Methods: The study group comprised 43 children with refractory monosymptomatic NE and a control group of 30 children, both aged 6–12 years. All subjects underwent thorough neurological examination, one night of polysomnography only for the patient group, and a lumbosacral plain X-ray to exclude spina bifida.
Results: The groups were well matched. Two subjects of the control group had mild OSAHS. The mean age of the patients was (9.19±2.4 years), 26 were boys, and 67% showed frequent NE (>3 days bedwetting/week). Patients with NE had significantly higher rates of OSAHS (P<0.0001); three patients had mild, 12 had moderate, and eleven showed severe OSAHS. There was no significant statistical difference among patients having OSAHS in relation to age, sex, or family history of NE. The frequency of bedwetting was statistically significantly higher in patients with severe OSAHS (P=0.003).
Conclusion: Patients with refractory NE had a significantly higher prevalence of OSAHS with no sex difference. The frequency of bedwetting was higher in patients with severe OSAHS.
Keywords: nocturnal enuresis, refractory, OSA
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