[Effects of bilateral lung volume reduction surgery in a patient with severe pulmonary emphysema].
A 61-year-old man suffering from severe pulmonary emphysema underwent lung volume reduction surgery on both upper lobes. By one year after surgery functional residual capacity had decreased by 2.5 L and FEV1 had increased by a factor of 2.4. Diaphragm excursion, as assessed by dynamic magnetic resonance imaging, had increased and ventilation and pulmonary gas exchange had improved. Performance on a 6-minute-walk test and exercise tolerance measured on a bicycle ergometer improved, and both peak VE and VO2 increased. Before surgery, pulmonary artery pressure Ppa and pulmonary capillary wedge pressure Pewp during exercise were abnormally high, but 6 months after the operation the increases in Ppa and Pcwp during exercise were markedly reduced.
Fujimoto
K
K
First Department of Internal Medicine, Shinshu University School of Medicine, Matsumoto, Japan.
Suzawa
M
M
Hanaoka
M
M
Matsuzawa
Y
Y
Kubo
K
K
Sekiguchi
M
M
Hanyuda
M
M
D002908:Chronic Disease; D017079:Exercise Tolerance; D006801:Humans; D008176:Lung Volume Measurements; D008297:Male; D008875:Middle Aged; D011013:Pneumonectomy / Q000534:rehabilitation*; D011652:Pulmonary Circulation; D011656:Pulmonary Emphysema / Q000503:physiopathology / Q000601:surgery*