title: [Polysomnography analysis in children].
abstract: OBJECTIVE
  To analyze the characteristics of Polysomnography (PSG) in children with obstructive sleep apnea-hypopnea syndrome(OSAHS).
  
  
  METHODS
  Forty-five children with sleep breathing disorder were studied with 32 guide PSG and analyzed by Polysmith. PSG results of OSAHS children were compared with primary snore group.
  
  
  RESULTS
  The mean age of OSAHS children was(7.3 +/- 3.8) years and the mean body weight was (40.1 +/- 19.7) kg. The mean value of NREM stage 1, stage 2, stage 3+4 and REM stage was(21.4 +/- 13.2)%, (43.1 +/- 13.7)%, (26.1 +/- 14.0) % and (9.4 +/- 6.0) % respectively. The sleep structure between OSAHS group and primary snore group was not significant (P > 0.05). The mean value of AHI of OSAHS children was(12.8 +/- 8.1) h. AI was (6.7 +/-6.6)h, HI was(6.1 +/- 5.1)h.
  
  
  CONCLUSIONS
  The sleep structure of children is prefect and mild effected by OSAHS.
authors.affiliation: Otorhinolaryngology Laboratory of Health Ministry, Shandong University, Jinan 250012, China. zww_919@126.com
authors.forename: Weizhi
authors.initials: W
authors.lastname: Wang
authors.forename: Yan
authors.initials: Y
authors.lastname: Wang
authors.forename: Yanzhong
authors.initials: Y
authors.lastname: Li
authors.forename: Xaolan
authors.initials: X
authors.lastname: Cai
authors.forename: Tingchu
authors.initials: T
authors.lastname: Wang
mesh_terms: D000293:Adolescent; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008297:Male; D017286:Polysomnography; D012890:Sleep / Q000502:physiology; D020181:Sleep Apnea, Obstructive / Q000503:physiopathology*