Of forty-three consecutive patients with severe adult respiratory dist
ress syndrome (ARDS) treated in the prone position pulmonary function
improved significantly in 39 patients during the first 12 h in prone p
osition. Changes were most pronounced in patients with high QS/QT, as
well as in patients in the early stages of ARDS. Twenty eight patients
could be weaned from the ventilator, and 22 patients were able to lea
ve the hospital. These results suggest that prone position has an impo
rtant role in the overall therapeutic approach to ARDS and should be u
sed as early as possible.