Filmed at the 2017 STS Annual Meeting, Joel Dunning of James Cook University Hospital in Middlesbrough, United Kingdom, moderates a discussion with Moishe Liberman and Eric Goudie, both of the University of Montreal. They discuss Dr Liberman's method of dividing pulmonary vessels using an energy device and the multi-center study Dr Liberman and Mr Goudie are running to evaluate energy sealing on pulmonary arteries.