Obstructive sleep apnea syndrome (OSAS) in mouth breathing children.
It is well known that mouth breathing is associated with adenotonsillar hypertrophy - which is the main cause of obstructive sleep apnea among children. Despite the importance of this matter, there are only a handful of studies showing the relationship between OSAS and mouth breathing.


OBJECTIVE
to determine the prevalence of obstructive sleep disorders in mouth breathing children and study its correlation with otorhinolaryngological findings.


METHODS
Retrospective cohort study.


METHODS
Data analysis from 248 medical charts of mouth breathing children seen at the Pediatric Otolaryngologic Division of a large medical institution between the years of 2000 and 2006. All patients had nasofibroscopy and or Cavum radiographs and polysomnographic exams. According to the Apnea index, patients were classified as primary snorers (AI<1); and as OSAS (>1).


RESULTS
From 248 patients included in the study, 144 (58%) were primary snorers and 104 (42%) had OSAS. The most prevalent otorhinolaryngological findings were adenotonsillar hypertrophy (n=152; 61.2%), tonsilar hypertrophy (n=17; 6.8%), adenoid hypertrophy (n=37; 14.9%), rhinitis (n=155; 62.5%) and secretory otitis (n=36; 14.5%).


CONCLUSIONS
primary snoring and OSAS are frequent findings in mouth breathing children. The most frequent otorhinolaryngological disorder in children with OSAS is adenotonsillar hypertrophy with or without rhinitis.
Federal University of São Paulo - Medical School.
Suemy Cioffi
SC
Izu
Caroline Harumi
CH
Itamoto
Márcia
M
Pradella-Hallinan
Gilberto Ulson
GU
Pizarro
Sérgio
S
Tufik
Shirley
S
Pignatari
Reginaldo Raimundo
RR
Fujita
D000293:Adolescent; D000367:Age Factors; D001938:Brazil / Q000453:epidemiology; D016009:Chi-Square Distribution; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D009058:Mouth Breathing / Q000453:epidemiology*; D010038:Otorhinolaryngologic Diseases / Q000453:epidemiology; D017286:Polysomnography; D015995:Prevalence; D012189:Retrospective Studies; D012737:Sex Factors; D020181:Sleep Apnea, Obstructive / Q000150:complications / Q000453:epidemiology*; D012913:Snoring / Q000453:epidemiology*