title: [Significance of the changes of platelet activation and fibrinolytic activity in patients with obstructive sleep apnea-hypopnea syndrome].
abstract: OBJECTIVE
  To investigate the changes of platelet activation, coagulability, and fibrinolytic activation in patients with obstructive sleep apnea-hypopnea syndrome (OSAHS) before and after the institution of nasal continuous positive airway pressure (nCPAP).
  
  
  METHODS
  Fifty-eight cases of OSAHS confirmed by polysomnography (PSG) were selected as the trial group, 20 subjects without OSAHS were recruited as the control group. Eleven patients with severe OSAHS were treated by nCPAP. Plasma GMP-140, GPIIb/IIIa and D-dimer were measured by ELISA.
  
  
  RESULTS
  Plasma levels of GMP-140, GPIIb/IIIa and D-dimer were significantly higher in patients with moderate to severe OSAHS than those in the control group, P < 0.05, and nCPAP therapy decreased their levels significantly, P < 0.001. GMP-140, GPIIb/IIIa and D-dimer were correlated positively with AHI, and negatively with minimal oxygen saturation, P < 0.001.
  
  
  CONCLUSIONS
  Our findings suggest that activation of platelet and coagulation system with fibrinolytic activation may be associated with the high prevalence of cerebrovascular and cardiovascular events in patients with OSAHS. nCPAP therapy is effective in correcting these coagulatory and fibrinolytic abnormalities.
authors.affiliation: Department of Respiratory Medicine, The Second Hospital of Hebei Medical University, Shijiazhuang 050000, China.
authors.forename: Huiping
authors.initials: H
authors.lastname: Feng
authors.forename: Huiqing
authors.initials: H
authors.lastname: Feng
authors.forename: Congmin
authors.initials: C
authors.lastname: Zhang
authors.forename: Kanjin
authors.initials: K
authors.lastname: Wu
authors.forename: Yadong
authors.initials: Y
authors.lastname: Yuan
authors.forename: Hongshen
authors.initials: H
authors.lastname: Yang
authors.forename: Jitao
authors.initials: J
authors.lastname: Guan
authors.forename: Baofa
authors.initials: B
authors.lastname: Wang
mesh_terms: D000328:Adult; D000368:Aged; D005260:Female; D005338:Fibrin Fibrinogen Degradation Products / Q000032:analysis; D005342:Fibrinolysis; D006801:Humans; D006973:Hypertension / Q000097:blood; D008297:Male; D008875:Middle Aged; D019007:P-Selectin / Q000097:blood; D015539:Platelet Activation; D017286:Polysomnography; D020181:Sleep Apnea, Obstructive / Q000097:blood*
chemical_list: D005338:Fibrin Fibrinogen Degradation Products; D019007:P-Selectin; C036309:fibrin fragment D