van der Werf T S, Mannes G P, Hew J M, Grevink R G, van der Mark T W, Ebels T, Koëter G H
Department of Pulmonary Diseases, Groningen University Hospital, The Netherlands.
Thorax. 1994 Jul;49(7):723-5. doi: 10.1136/thx.49.7.723.
Atresia of the pulmonary veins of the left lung and the right upper lobe with moderate pulmonary hypertension was diagnosed in a 20 year old man presenting with exertional dyspnoea and haemoptysis. After left pneumonectomy gas exchange appeared to have improved. This was shown by improved arterial oxygen pressures during all steps of exercise in a cycle ergometer test in comparison with values obtained before surgery. This improvement could be entirely attributed to a decrease in physiological dead space ventilation.
一名20岁男性因劳力性呼吸困难和咯血就诊，被诊断为左肺和右上叶肺静脉闭锁伴中度肺动脉高压。左肺切除术后气体交换似乎有所改善。在踏车测力计试验中，与手术前相比，运动各阶段的动脉血氧分压均有所改善，这表明了气体交换的改善。这种改善完全归因于生理无效腔通气的减少。
