- Arm I: Patients undergo placement of a standard pleural chest tube. Within 36 hours of chest tube placement, patients undergo pleurodesis comprising intrapleural administration of talc slurry once followed by clamping of the chest tube for 2 hours while different patient positions are used to distribute the talc. The chest tube is then unclamped to allow continuous drainage. When the chest tube drainage is less than 150 mL over 24 hours, pleurodesis is assumed and the chest tube is removed.