The effect of different lung-protective strategies in patients during cardiopulmonary bypass: a meta-analysis and semiquantitative review of randomized trials.

A variety of lung-protective techniques, including continuous positive airway pressure and vital capacity maneuvers, have been suggested as beneficial when applied during cardiopulmonary bypass (CPB). To better define the efficacy of these techniques, a systematic review of different ventilation strategies during and after CPB was performed.