title: [Peri-uvulopalatopharyngoplasty changes on the relationship between arousal and nocturnal heart rate variability in patients with OSAHS].
abstract: OBJECTIVE
  To study the relationship between arousal and nocturnal apnea-hypopnea syndrome (OSAHS).
  
  
  METHODS
  Fifty four patients with OSAHS underwent overnight polysomnography (PSG) were enrolled, An hour continuous PSG monitoring in non-rapid eye movement (NREM) was recorded for all patients. The mean heart rate (HR) in 10 s before each arousal and the peak HR IN 10 s after arousal were compared, and the breathing disorder related arousal index (B-ArL) and pulse rate rise index (PRRI) were calculated at this time, and then a correlation analysis were performed and then Delta HR at apnea termination between these events were compared.
  
  
  RESULTS
  the peak HR in 10 s after arousal onset was significantly higher than the mean HR in 10 s before arousal onset, and B-Arl was positively correlated to PRRI. the Delta HR of events with EEG arousal at apnea termination was higher than those without EEG arousal.
  
  
  CONCLUSIONS
  The results indicate that arousal can influence the function of cardiovascular regulation; Frequent arousal is one of the main causes of the cardiovascular consequences in OSAHS patients. Operation can reduce these influences.
authors.affiliation: Department of Otolaryngology of Wuhan General Hospital of PLA, Wuhan, 430070, China. Yaohq64@sina.com
authors.forename: Xingqi
authors.initials: X
authors.lastname: Yao
authors.forename: Hui
authors.initials: H
authors.lastname: Yang
authors.forename: Changliang
authors.initials: C
authors.lastname: Yang
authors.forename: Yong
authors.initials: Y
authors.lastname: Chu
mesh_terms: D000328:Adult; D001143:Arousal; D005260:Female; D006339:Heart Rate; D006801:Humans; D008297:Male; D008875:Middle Aged; D017286:Polysomnography; D020181:Sleep Apnea, Obstructive / Q000503:physiopathology* / Q000601:surgery