• Xiao-zhi Wang, Chang-jun Lü, Fu-quan Gao, Xiao-hong Li, Dong Hao, and Fang-yu Ning.
• Department of Respirology & Intensive Care Unit, Binzhou Medical College, Shandong Province 256603, China.
• Zhonghua Jie He He Hu Xi Za Zhi. 2007 Jan 1;30(1):44-7.

ObjectiveTo compare the effects of BiPAP ventilation combined with lung recruitment maneuvers (LRM) with low tidal volume A/C ventilation in patients with acute respiratory distress syndrome (ARDS).MethodsA prospective, randomized comparison of BiPAP mechanical ventilation combined with lung recruitment maneuvers (test group) with low tidal volume A/C ventilation (control group) was conducted in 28 patients with ARDS. FiO2/PaO2 ratio, respiratory system compliance (Cs), central venous pressure (CVP), duration of ventilation support were recorded at 0 h, 48 h and 72 h separately. The ventilation associated lung injury and mortality at 28 d were also recorded.ResultsThe FiO2/PaO2 ratio were (298+/-16) and (309+/-16) cm H2O, Cs were (38.4+/-2.2) and (42.0+/-1.3) ml/cm H2O, CVP were (13.8+/-0.8) and (11.6+/-0.7) cm H2O in the test group at 48 h and 72 h separately. In the control group, FiO2/PaO2 ratio were (212+/-12) and (246+/-17) cm H2O, Cs were (29.5+/-1.3) and (29.0+/-1.0) ml/cm H2O, CVP were 18.6+/-1.1 and (16.8+/-1.0) cm H2O. The results were better in the test group as compared with the control group (t=10.03-29.68, all P<0.01). The duration of ventilation support in the test group was shorter than the control group [(14+/-3) d vs (19+/-3) d, t=4.80, P<0.01]. The mortality in 28 d and ventilation associated lung injury were similar in the two groups.ConclusionThe results show that combination of LRM with BiPAP mode ventilation, as compared with the control group, contributes to improved FiO2/PaO2 ratio, pulmonary compliance, stable hemodynamic and shorter duration of ventilation support in patients with ARDS.

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