Determinants of pulmonary function in patients undergoing coronary bypass operations.

摘要: Abstract Pulmonary function testing was conducted consecutively in 29 healthy men (age range, 42 to 71 years) undergoing elective coronary artery bypass grafting. Lung volumes, expiratory flow rates, diffusing capacity, and blood gases were determined before operation, at discharge (8.7 ± 1.9 days), 3 months postoperatively. In addition, peak rate measured immediately after extubation (21.4 2.7 hours). Fifteen patients had smoked within the past year, but none a history of pulmonary impairment. Twenty-two internal mammary (IMA) dissection. Operation recovery uneventful all cases. After extubation, decreased by 65%. At discharge, lung volumes 19% 33% below preoperative values rates 37% values. Some minor changes detected months. Further analysis these according smoking history, age, weight, dissection IMA, aortic cross-clamp time showed that only IMA affected postextubation ( p = 0.01). Thus, median sternotomy is associated with severe short-term dysfunction; has significant adverse effect on changes.