Schiavoni G, Valente B, Pagliari G, Ansalone G, Ciappi G
Minerva Med. 1980 Nov 14;71(45):3339-44.
The Authors study the variations of the cardiac output (C.O.), of the mean pulmonary arterial pressure (mPAP) and of the pulmonary vascular resistance (P.V.R.) in fine patients, affected by chronic respiratory failure, during the mechanical ventilation with a body respirator. In all the patients a reduction of the mPAP and of the CO are present. The PVR varies proportionally to the improvement of the respiratory indices. The Authors conclude that the haemodinamic changes are not exclusively due to the mechanical effect of the body respirator, but also to the correction of the respiratory situation and particularly due to the intra-alveolar pressure.
作者研究了患有慢性呼吸衰竭的患者在使用人工呼吸机进行机械通气期间的心输出量（C.O.）、平均肺动脉压（mPAP）和肺血管阻力（P.V.R.）的变化。在所有患者中，mPAP和C.O.均降低。PVR与呼吸指标的改善成比例变化。作者得出结论，血液动力学变化并非仅归因于人工呼吸机的机械作用，还归因于呼吸状况的改善，尤其是肺泡内压。
