caa a22 4500 475753437 CHVBK 20180406123531.0 cr unu---uuuuu 170329e20000301xx s 000 0 eng 10.1007/s005950050595 doi (NATIONALLICENCE)springer-10.1007/s005950050595 Predictors of Improvement in FEV1 (Forced Expiratory Volume in 1 s) After Lung Volume Reduction Surgery [Elektronische Daten] [Hiroshi Date, Keiji Goto, Ryo Souda, Shigehito Endou, Motoi Aoe, Motohiro Yamashita, Akio Andou, Nobuyoshi Shimizu] We evaluated various preoperative and operative factors to identify the predictors of improvement in forced expiratory volume in 1 s (FEV1) after lung volume reduction surgery (LVRS). Fifty-eight emphysema patients received bilateral LVRS either via a sternotomy (n = 53) or by thoracoscopy (n = 5). The patients were divided into the following two groups: group I (n = 17), patients whose FEV1 improved by less than 20%; group II (n = 41), patients whose FEV1 improved by more than or equal to 20%. The preoperative factors (age, degree of dyspnea, oxygen use, steroid use, pulmonary function test, arterial blood gas, pulmonary hemodynamics, 6-min walking distance) and operative factors (removed lung weight, number of staplers) were both similar between the two groups. Upper lobe type emphysema was more frequently seen in group II and the average improvement in FEV1 was significantly better in the patients with upper lobe type emphysema (62.8% ± 8.5%) than lower lobe type (36.9% ± 7.6%) and mixed type (35.5% ± 6.5%), P < 0.01. Severe pleural adhesion was more frequently found in group I and the average improvement in FEV1 was also significantly lower in patients with severe pleural adhesion (19.8% ± 6.4%) than mild-to-moderate adhesion (46.8% ± 5.3%) and no-to-minimal adhesion (62.3% ± 10.4%), P < 0.01. These results lead us to conclude that upper lobe type emphysema may thus be a predictor of better FEV1 improvement while severe pleural adhesion is considered to be a predictor of a poorer FEV1 improvement after bilateral LVRS.: Springer-Verlag Tokyo, 2000 Key Words: lung volume reduction surgery, forced expiratory volume in 1 s, emphysema nationallicence Date Hiroshi Departments of Surgery II, Okayama University School of Medicine, 2-5-1 Shikata-cho, Okayama 700-8558, Japan, JP aut Goto Keiji Anesthesiology and Resuscitology, Okayama University School of Medicine, 2-5-1 Shikata-cho, Okayama 700-8558, Japan, JP aut Souda Ryo Department of Internal Medicine, Minami-Okayama Hospital, 4066 Hayashima, Tsukubo-gun, Okayama 701-0304, Japan, JP aut Endou Shigehito Departments of Surgery II, Okayama University School of Medicine, 2-5-1 Shikata-cho, Okayama 700-8558, Japan, JP aut Aoe Motoi Departments of Surgery II, Okayama University School of Medicine, 2-5-1 Shikata-cho, Okayama 700-8558, Japan, JP aut Yamashita Motohiro Departments of Surgery II, Okayama University School of Medicine, 2-5-1 Shikata-cho, Okayama 700-8558, Japan, JP aut Andou Akio Departments of Surgery II, Okayama University School of Medicine, 2-5-1 Shikata-cho, Okayama 700-8558, Japan, JP aut Shimizu Nobuyoshi Departments of Surgery II, Okayama University School of Medicine, 2-5-1 Shikata-cho, Okayama 700-8558, Japan, JP aut https://doi.org/10.1007/s005950050595 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s005950050595 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Date Hiroshi Departments of Surgery II, Okayama University School of Medicine, 2-5-1 Shikata-cho, Okayama 700-8558, Japan, JP aut NATIONALLICENCE 700 1- Goto Keiji Anesthesiology and Resuscitology, Okayama University School of Medicine, 2-5-1 Shikata-cho, Okayama 700-8558, Japan, JP aut NATIONALLICENCE 700 1- Souda Ryo Department of Internal Medicine, Minami-Okayama Hospital, 4066 Hayashima, Tsukubo-gun, Okayama 701-0304, Japan, JP aut NATIONALLICENCE 700 1- Endou Shigehito Departments of Surgery II, Okayama University School of Medicine, 2-5-1 Shikata-cho, Okayama 700-8558, Japan, JP aut NATIONALLICENCE 700 1- Aoe Motoi Departments of Surgery II, Okayama University School of Medicine, 2-5-1 Shikata-cho, Okayama 700-8558, Japan, JP aut NATIONALLICENCE 700 1- Yamashita Motohiro Departments of Surgery II, Okayama University School of Medicine, 2-5-1 Shikata-cho, Okayama 700-8558, Japan, JP aut NATIONALLICENCE 700 1- Andou Akio Departments of Surgery II, Okayama University School of Medicine, 2-5-1 Shikata-cho, Okayama 700-8558, Japan, JP aut NATIONALLICENCE 700 1- Shimizu Nobuyoshi Departments of Surgery II, Okayama University School of Medicine, 2-5-1 Shikata-cho, Okayama 700-8558, Japan, JP aut Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer