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Zhonghua yi xue za zhi · Jul 2011
[Effects of mechanical ventilation and positive end-expiratory on central venous pressure].
- Li-ming Yang, Jing Tan, and Wan-li Yang.
- Department of Critical Care Medicine, Affiliated Taiyuan Steel General Hospital, Shanxi Medical University, Taiyuan 030003, China. tgylm1970@163.com
- Zhonghua Yi Xue Za Zhi. 2011 Jul 19; 91 (27): 1884-5.
ObjectiveTo investigate the effects of mechanical ventilation and positive end expiratory pressure (PEEP) on central venous pressure (CVP).MethodsForty 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.ResultsMechanical 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.ConclusionMechanical ventilation and PEEP affect the accuracy of CVP.
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