Tunneled Pleural Catheter in Partially Entrapped Lung

Inclusion Criteria: * One-sided malignant pleural effusion, first occurrence, or following repeated pleuracentesis * History of dyspnea relieved after pleuracentesis * Patient is suitable for VATS * Surgery is indicated by diagnostic necessity * Ability of subject to understand character and individual consequences of clinical trial * Written informed consent must be available before enrolment in the trial * For women with childbearing potential, adequate contraception. * Histological proven pleural carcinosis by immediate sectioning * Intraoperative: partial entrapment of the lung Exclusion Criteria: * Prior lobectomy or pneumonectomy on the affected side * The patient is not operable for general reasons or Karnofsky performance score \< 50 * Intraoperative suspicion of a pleural empyema * Chylothorax * Prior attempts at pleurodesis * Intended or prior intrapleural chemotherapy or radiotherapy * Pregnancy and lactation * Participation in other competing clinical trials and observation period of competing trials