A Prospective Randomised Study of Efficacy, Safety and Costs of Talc Pleurodesis Under Medical Thoracoscopy and Pleurodesis Under Video-assisted Thoracoscopy Surgery for Recurrent Primary Spontaneous Pneumothorax

Inclusion Criteria: * Subjects :both sexes, who the age is included between 18 years and 55 years; * Presenting a recurrence homolaterale or controlaterale of a primary spontaneous pneumothorax; * Presenting a bilateral primary spontaneous pneumothorax * Presenting a failure of a manual inhalation for a primary spontaneous pneumothorax; * Presenting a persistent superior bullage at 48 am after a thoracic drainage for a spontaneous pneumothorax * Presenting a persistent superior bullage at 48 am after a thoracic drainage for a primary spontaneous pneumothorax; * Presenting a persistent superior unsticking at 48 am after a thoracic drainage for a primary spontaneous pneumothorax; * Presenting a first episode of pneumothorax spontaneous primary with risk factor of recurrence * The unsticking must be complete or important (superior to 3 cms between the summit of the lung and the summit of the thoracic cavity or superior to 2 cms with regard to the side thoracic wall); * Benefiting from a national insurance scheme; * Agreeing to participate in the study, and having read, included and signed the note of information intended in patients. Exclusion Criteria: * Subjects:Presenting a traumatic pneumothorax; Presenting a pneumothorax iatrogène; Presenting a secondary spontaneous pneumothorax ( underlying pleuro-lung pathology); Presenting bubbles of emphysema of size(cutting) superior to 5 cms; presenting a pneumothorax catamenial;Presenting one of the following concomitant severe pathologies dissuading a general anesthetic or any symphysant gesture(movement): cardiac insufficiency * Pregnant or breast-feeding Woman; * presenting neurological disorders or psychiatric forbidding the understanding of the essay; * Who the follow-up is impossible; * Deprived of freedom following a court or administrative order; * Not having signed the enlightened assent.