Pulmonary Function Tests Overestimate Chronic Pulmonary Disease in Patients With Severe Aortic Stenosis Mitchell J. Magee, MD, Morley A. Herbert, PhD, Karen L. Roper, PhD, Elizabeth Holper, MD, Todd M. Dewey, MD, Tricia Snelus, BA, Michael J. Mack, MD The Annals of Thoracic Surgery Volume 96, Issue 4, Pages 1329-1335 (October 2013) DOI: 10.1016/j.athoracsur.2013.04.123 Copyright © 2013 The Society of Thoracic Surgeons Terms and Conditions
Fig 1 Study flow showing patients with COPD divided into three groups based on preoperative PFTs who had repeat testing 6 to 12 months after AVR. (AVR = aortic valve replacement; COPD = chronic obstructive pulmonary disease; PFTs = pulmonary functions tests.) The Annals of Thoracic Surgery 2013 96, 1329-1335DOI: (10.1016/j.athoracsur.2013.04.123) Copyright © 2013 The Society of Thoracic Surgeons Terms and Conditions
Fig 2 Survival curves by preoperative COPD severity classification. (COPD = chronic obstructive pulmonary disease; mod = moderate.) The Annals of Thoracic Surgery 2013 96, 1329-1335DOI: (10.1016/j.athoracsur.2013.04.123) Copyright © 2013 The Society of Thoracic Surgeons Terms and Conditions
Fig 3 Changes in COPD severity class after surgery compared with preoperative classification. (COPD = chronic obstructive pulmonary disease; mod = moderate; Preop = preoperative.) The Annals of Thoracic Surgery 2013 96, 1329-1335DOI: (10.1016/j.athoracsur.2013.04.123) Copyright © 2013 The Society of Thoracic Surgeons Terms and Conditions
Fig 4 Correlation between decreased BNP values and improved pulmonary function. (BNP = b-type natriuretic peptide; FEV1 = forced expiratory volume in 1 second; postop = postoperative; preop = preoperative.) The Annals of Thoracic Surgery 2013 96, 1329-1335DOI: (10.1016/j.athoracsur.2013.04.123) Copyright © 2013 The Society of Thoracic Surgeons Terms and Conditions