Gas exchange and subjective symptoms
dyspnea
ADVERSE EVENTS
None of the fifteen enrolled patients experienced any serious adverse events. Thirteen out of 15 patients showed increased blood oxygenation after 2 h of prone positioning (mean difference 45 mmHg [95% CI 23–68], PaCOThere was no change in perceived dyspnea among the three study phases, but patients exhibited less tolerability for the prone position when resupinated (