LVRS and O 2 Use in NETT Changes in Arterial Oxygenation and Self-Reported Oxygen Use Following Lung Volume Reduction Surgery Margaret L. Snyder 1 , Christopher H. Goss 1 , Blazej Neradilek 2 , Nayak L. Polissar 2 , Zab Mosenifar 3 , Robert A. Wise 4 , Alfred P. Fishman 5 , and Joshua O. Benditt 1 For the National Emphysema Treatment Trial Research Group 1 University of Washington, Division of Pulmonary and Critical Care Medicine, Seattle, WA 2 The Mountain-Whisper-Light Statistical Consulting, Seattle, WA 3 Cedars-Sinai Medical Center, Division of Pulmonary Medicine, Los Angeles, CA 4 Johns Hopkins University, Division of Pulmonary and Critical Care Medicine, Baltimore, MD 5 University of Pennsylvania, Office of Program Development, Philadelphia, PA Address correspondence and requests for reprints to: Joshua O. Benditt, M.D. University of Washington Medical Center Pulmonary and Critical Care Medicine Box 356522 Seattle, WA 98195-6522 Phone: 206-543-3166 Fax: 206-685-8673 AJRCCM Articles in Press. Published on June 5, 2008 as doi:10.1164/rccm.200712-1826OC Copyright (C) 2008 by the American Thoracic Society.