A Randomized Double-Blind Controlled Trial Comparing 3 Sedation Regimens during Flexible Bronchoscopy: Dexmedetomidine, Alfentanil and Lidocaine Sedation in Flexible Bronchoscopy Moussa Riachy 1* , BS, MD, FCCP ; Georges Khayat 1 , MD; Ihab Ibrahim 1 , MD; Zeina Aoun 1 , MD, FCCP; Georges Dabar 1 , MD, FCCP ; Taha Bazarbachi 1 , MD; Nadine Khalil 1 , MD; Bassem Habr 1 , MD. 1 Department of Pulmonary and Critical Care, Hôtel Dieu de France University Hospital, Beirut, Lebanon. * Correspondence to Dr. Moussa Riachy Department of Pulmonary and Critical Care, Hôtel Dieu de France University Hospital, P.O. Box 166830. Boulevard A. Naccache - Ashrafieh, Beirut – Lebanon. Email address: riachy@dm.net.lb. Telephone number: +961 3 361 672 The results of this study have been presented at the European Respiratory Society 2015 International Congress, Amsterdam – Netherlands. Abstract Number: 850487 Disclosure Statement The authors declare that they have no competing interests. Authorship Statement MR, GK, II, ZA, GD, and BH contributed to study conception and design. MR, GK, II, ZA, GD, and BH were involved in data acquisition. MR and BH performed data analysis and interpretation, and manuscript drafting. All authors critically revised the manuscript and approved the final version. This article has been accepted for publication and undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process which may lead to differences between this version and the Version of Record. Please cite this article as an ‘Accepted Article’, doi: 10.1111/crj.12669 This article is protected by copyright. All rights reserved.