2. Richard, et al studied4 the effect of SI (45 cm H2O for 15 seconds) in 10 adults with ARDS ventilated with a low-tidal volume strategy. The maneuver induced a significant increase in recruited lung volumes (175±108 ml pre-maneuver versus 254±137 ml post-maneuver). This improvement was associated with an increase in arterial oxygen saturations. There was no report of sustainability of recruitment, nor of adverse effects.