Winner of the ESTS 2018 Young Investigator Award Cite this article as: Fourdrain A, De Dominicis F, Iquille J, Lafitte S, Merlusca G, Witte-Pfister A et al. Intraoperative conversion during video-assisted thoracoscopy does not constitute a treatment failure†. Eur J Cardiothorac Surg 2019;55:660–5. Intraoperative conversion during video-assisted thoracoscopy does not constitute a treatment failure† Alex Fourdrain a, *, Florence De Dominicis a , Jules Iquille a , Sophie Lafitte a , Geoni Merlusca a , Alejandro Witte-Pfister a , Jonathan Meynier b , Patrick Bagan a and Pascal Berna a a Department of Thoracic Surgery, Amiens University Hospital, Amiens, France b Department of Biostatistics, Clinical Research and Innovation Directorate, Amiens University Hospital, Amiens, France * Corresponding author. Department of Thoracic Surgery, Amiens University Hospital, 80054 Amiens, France. Tel: +33-322-087328; fax: +33-322-455657; e-mail: fourdrain.alex@chu-amiens.fr (A. Fourdrain). Received 18 June 2018; received in revised form 5 September 2018; accepted 13 September 2018 Abstract OBJECTIVES: Intraoperative conversion may be required during video-assisted thoracoscopic surgery (VATS) for lung cancer. We eval- uated the morbidity and mortality rates associated with VATS for anatomical pulmonary resection with conversion to thoracotomy and compared this technique with full VATS and an open thoracotomic approach. †Presented at the 26th Annual Meeting of the European Conference on General Thoracic Surgery, Ljubljana, Slovenia, 27–30 May 2018. V C The Author(s) 2018. Published by Oxford University Press on behalf of the European Association for Cardio-Thoracic Surgery. All rights reserved. European Journal of Cardio-Thoracic Surgery 55 (2019) 660–665 ORIGINAL ARTICLE doi:10.1093/ejcts/ezy343 Advance Access publication 16 October 2018