During caesarean section, transient respiratory distress which occurs frequently (3%) with possible complications are at present managed by non invasive nasal continuous positive airway pressure ventilation (nCPAP) associated with oxygen therapy. Intrapulmonary Percussive Ventilation (IPV) is a non-invasive ventilatory mode used in some intensive care units to treat some respiratory distress syndrome of the newborn with a good tolerance, but without evaluation in prospective studies