Comparing The Effects Of Prone And Supination Positon Ventilation Combined With Recruitment Maneuver On Oxygenation And Hemodynamics In Patients With ARDS

Objective:To explore the effects of prone and supine positon ventilation combined with recruitment maneuver on oxygenation and hemodynamics in patients with acute respiratory distress syndrome (ARDS).Methods:71cases with ARDS were involved.Each patient was performed RM in supine position(SP)and prone position(PP) respectively. There was a elution period between two positions.Hemodynamics index and blood gas data were recorded before and after one hour RM in two positions, PaO2/FiO2calculated as well. Results:(1) In both positions,SpO2was increased after RM(p<0.05),and PP was increased more evidently than SP (p<0.05).(2) PaO2/FiO2was also increased after RM in both positions(p<0.05),and was increased more evidently in PP.(p<0.05),(3)HR、 MAP、CI、SVRI、CVP, have no significantly difference between this two positions and returned to the base level as RM stopped one hour later. Conclusions:RM in SP and PP might significantly improve oxygenation in patients with severe pneumonia and PP was more effective than SP, but both positions have little influence on hemodynamics.