This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Thorax And Mediastinum, Subject name: Surgery
[{'content': 'VATS refers to: \nSelect and explain. \nA. Vaccum assited thoracic surgery, B. Video assisted thoracoscopic surgery, C. Video assisted transplant surgery, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Video Assisted Thoracoscopic Surgery In contrast to most laparoscopic techniques, the working space for VATS is created not by adding an insufflating gas but rather by removing air from the ipsilateral lung parenchyma causing collapse of the ipsilateral lung Used for pulmonary decoication, pleurodesis, and lung or pleural biopsies', 'role': 'assistant'}]