Hemodynamic effects of extended prone position sessions in ARDS

Annals of Intensive Care

Table 2 Characteristics of prone positioning sessions

Variables	Session characteristics n = 197
Number of PP sessions per patient	2 ± 2
Time between ARDS onset and PP session onset (day)	3 ± 3
Duration of PP session (h)	16 ± 3
SOFA score	15 ± 4
Body weight at PP session onset (kg)	86 ± 19
Cumulative fluid balance at PP session onset (kg)	2.3 ± 6.5
Fluid balance during PP session (kg)	0.8 ± 3.3
Fluid challenge during PP session	78 (40%)
Volume of fluid challenges during PP session (mL)	505 ± 1069
Renal replacement therapy	84 (43%)
Dobutamine administration	62 (31%)
Vasopressor administration	166 (84%)
Inhaled nitric oxide	39 (20%)
Neuromuscular blocking agents	182 (92%)
O₂ responders to PP	157 (80%)
CO₂ responders to PP	97 (49%)
O₂ and CO₂ responders to PP	85 (43%)

Values are count (percentage) or mean ± standard deviation
CO₂ responders to PP = patients in which PaCO₂ decreases by at least 1 mmHg between end of PP session and before PP session. O₂ responders to PP = patients in which PaO₂/FiO₂ increases by at least 20 mmHg between end of PP session and before PP session. O₂ and CO₂ responders to PP = patients in which PaO₂/FiO₂ increases by at least 20 mmHg and PaCO₂ decreases by at least 1 mmHg between end of PP session and before PP session
PP prone position, SOFA sepsis-related organ failure assessment