In Video assisted thoracoscooic surgery for better vision the space in the operative field is created by?
Ans is 'c' i.e. collapse of ipsilateral lung In contrast to most laparoscopic techniques, the working space for VATs is created not by adding an insuffalation gas but rather by removing air from the ipsilateral lung parenchyma causing collapse of the ipsilateral lung.
Self retaining retractor
CO2 insufflations
Collapse of ipsilateral lung
Rib spacing