Fig. 4From: Effect of reverse Trendelenburg position and positive pressure ventilation on safe non-hypoxic apnea period in obese, a randomized-control trialMean Arterial Pressure. Mean arterial (mmHg) pressure, for both groups, during the first 10 min following the beginning of the pre-oxygenation including the periods of anesthesia induction and the tracheal intubation. P = 0.8893Back to article page