Evaluation of alveolar recruitment maneuver on respiratory resistance during general anesthesia: a prospective observational study

Table 2 Respiratory effects of the alveolar recruitment maneuver (n=31)

	Pre-ARM	Post-ARM	P value
MostGraph® measurement
Tidal volume (mL)	447±55	458±53	0.077
R5 (cmH₂O/L/second)	7.3±1.6	6.4±1.7	0.001
Ventilator measurement
Tidal volume setting (mL)	497±53	497±53	NA
Actual tidal volume (mL)	480±56	488±56	0.026
Peak inspiratory pressure (cmH₂O)	15.5±1.7	15.0±1.5	<0.001
Plateau pressure (cmH₂O)	13.6±1.6	13.0±1.4	<0.001
PEEP (cmH₂O)	5±0	5±0	NA
Cdyn (mL/cmH₂O)	47.0±8.8	50.0±8.9	<0.001
Cst (mL/cmH₂O)	58.3±13.9	63.1±13.3	<0.001

ARM Alveolar recruitment maneuver, Cdyn Dynamic respiratory compliance, Cst Static pulmonary compliance, NA Not applicable, PEEP Positive end-expiratory pressure.

ISSN: 1471-2253