Zwick H, Heindl W, Muhr R
Z Erkr Atmungsorgane. 1981;156(1):74-84.
In patients with pulmonary emphysema the course of PO2 and of pulmonary and systemic circulation is analysed under exercise up to the performance limit and to PO2 reduction. By alterations of breathing mechanics frequent emphysematous persons and associated with bronchial obstructions under increased intrapulmonary pressure by forced ventilation a group of patients may be found with a quick limitation of performance by hindering the intrathoracic circulation followed by reduction of the systemic blood pressure. A pulmonary arterial hypertension cannot be seen in these cases. The registration of the parameters of breathing mechanics during exercise testing is recommended.
在肺气肿患者中，分析运动至耐力极限及动脉血氧分压（PO2）降低时的PO2、肺循环和体循环过程。通过呼吸力学改变，在用力通气导致肺内压升高的情况下，常可发现一组伴有支气管阻塞的肺气肿患者，由于胸内循环受阻，其运动耐力迅速受限，随后出现体循环血压下降。这些病例中未见肺动脉高压。建议在运动试验期间记录呼吸力学参数。
