title: [Effects of mechanical ventilation and positive end-expiratory on central venous pressure].
abstract: OBJECTIVE
  To investigate the effects of mechanical ventilation and positive end expiratory pressure (PEEP) on central venous pressure (CVP).
  
  
  METHODS
  Forty cases of respiratory failure with mechanical ventilation were enrolled. Catheter was inserted via subclavian vein in each. And then CVP was measured without mechanical ventilation and under different PEEP conditions of 0, 6 and 12 cm H2O.
  
  
  RESULTS
  Mechanical ventilation could affect the levels of CVP, P(peak) ≈ PS+PEEP, followed PEEP, t = 3.364, P = 0.006. There was significant difference was found among the three groups, F = 15.293, P = 0.000. And CVP increased with a rising level of PEEP.
  
  
  CONCLUSIONS
  Mechanical ventilation and PEEP affect the accuracy of CVP.
authors.affiliation: Department of Critical Care Medicine, Affiliated Taiyuan Steel General Hospital, Shanxi Medical University, Taiyuan 030003, China. tgylm1970@163.com
authors.forename: Li-ming
authors.initials: LM
authors.lastname: Yang
authors.forename: Jing
authors.initials: J
authors.lastname: Tan
authors.forename: Wan-li
authors.initials: WL
authors.lastname: Yang
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D002496:Central Venous Pressure; D002648:Child; D005260:Female; D006801:Humans; D007362:Intensive Care Units; D008297:Male; D008875:Middle Aged; D011175:Positive-Pressure Respiration; D055815:Young Adult