Comparative analysis of respiratory systems compliance in three different positioning (lateral, dorsal and sitting) in patients in prolonged invasive mechanical ventilation.

Objectives: This study is justified by the fact that in clinical practice, changes occur in patient's positioning in the bed during hospitalization in intensive care unity, it's necessary better understanding about possible adverse effects that such changes might cause mainly on the respiratory system condition. The objective this study was to evaluate if the patients positioning in bed can to alter the pulmonary complacency.

Methods: All included patients were submitted to mechanical ventilation and were sedated and curarized respiratory system compliance was assessed in three different positioning: lateral, dorsal and sitting.