 This study consists of evaluating the safety and efficacy of energy sealing lobar PA branches for lobectomy in humans. All patients planned to undergo a lobectomy by VATS at the CHUM - Hôpital Notre-Dame will be approached. In our institution, lobectomies are either done open thoracotomy or by minimally invasive approach, known as VATS video assisted thoracoscopic surgery. This decision is based on the surgeon, tumor size, tumor localization and patient characteristics. Only patients already planned for a VATS lobectomy will be approached. Potential patients will be selected by going over the operation request forms. Patients booked for a VATS lobectomy will be approached either in the preoperative clinic or the day before surgery, when admitted. Aim is to recruit 20 patients. 