Impact of Forced Expiration On Pleural Drainage Duration (KPDP)

Following thoracic surgery, pleural effusion in pleural cavity requires post-operative drainage. Pleural effusion is responsible for pulmonary congestion, atelectasis, hypoventilation, lower efficacy of diaphragmatic curse, lower pulmonary reexpansion and vicious attitude. These complications could be avoided by respiratory physiotherapy. Forced expiration technic in ipsilateral decubitus is one of these technics but has never been proved better than other technics regarding its efficiency. The aim of the study is to compare the impact of such a technic on post operative thoracic drainage after pulmonary, pleural or mediastinal pediatric surgery.

Inclusion Criteria: * Children 0-4 years * In front have a mediastinum or lung surgery (lung segmentectomy or lobectomy or non anatomical lung resection) with pleural drainage, regardless of the type drain * Whose parents or the holder of parental authority have signed a consent * Whose parents or the holder of parental authority are affiliated to a social security scheme Exclusion Criteria: * chest trauma * Oncology (chest tumors, lung metastases) * Drained Pleuropneumopathies * Spine Surgery * Heart surgery * Surgery for pectus excavatum * Route of anterior surgical approach sternotomy chest kind * Patients intubated and / or ventilated * Patients with preoperative sepsis