Bilateral Lung Volume Reduction Surgery via Median Sternotomy for Severe Pulmonary Emphysema Hiroshi Date, Keiji Goto, Ryo Souda, Hiroaki Nagashima, Izumi Togami, Shigehito Endou, Motoi Aoe, Motohiro Yamashita, Akio Andou, Nobuyoshi Shimizu The Annals of Thoracic Surgery Volume 65, Issue 4, Pages 939-942 (April 1998) DOI: 10.1016/S0003-4975(98)00115-5
Fig. 1 Forced expiratory volume in 1 second (FEV1) and 6-minute walking distance before operation (n = 33) and 1 month (n = 33), 2 months (n = 33), 3 months (n = 33), 6 months (n = 20), and 12 months (n = 9) after operation. For FEV1, p < 0.001 at all postoperative time points versus preoperative data. For 6-minute walking distance, p < 0.01 at 2, 3, and 6 months and 1 year versus preoperative data. (Pre-R = before rehabilitation [before operation]; Post-R = after rehabilitation [before operation].) The Annals of Thoracic Surgery 1998 65, 939-942DOI: (10.1016/S0003-4975(98)00115-5)