[Hemo- and gas dynamic effects of artificial ventilation of the lungs].
In anesthetized cats, autonomic respiration in the positive intermitting pressure mode induced a decrease of the minute blood volume under conditions of both the closed and the open chest by 24% and 43% resp. The arterial pressure in the major circulation as well as the pressure in the right heart ventricle were decreased insignificantly (by 10-15%). The mechanical respiration sharply increased the ratio: respiratory dead space volume/alveolar volume. To maintain the adequate values of the gaseous and acid-alkaline composition of arterial blood, it was necessary to set a considerably higher respiratory volume of the apparatus as compared with spontaneous breathing. Certain mechanisms of the artificial ventilation effects upon the cardiovascular and respiratory systems, are discussed.
D000136:Acid-Base Equilibrium; D000818:Animals; D001794:Blood Pressure; D001810:Blood Volume; D002415:Cats; D005260:Female; D006439:Hemodynamics; D006801:Humans; D007385:Intermittent Positive-Pressure Ventilation; D011659:Pulmonary Gas Exchange; D012119:Respiration; D012121:Respiration, Artificial; D012126:Respiratory Dead Space; D016276:Ventricular Function
Gemo- i gazodinamicheskie éffekty iskusstvennoĭ ventiliatsii legkikh.