title: [Hemodynamic analysis of pulmonary circulation by microcatheter technique in healthy persons and in patients with pulmonary silicosis (author's transl)].
abstract: A comparison of hemodynamic analysis of pulmonary circulation in 18 healthy men (PM less than 20 Torr) and 19 patients with pulmonary silicosis (PM larger than or equal to 20 Torr) at rest and under work load gave following results: In most healthy persons pulmonary pressure rose under load while resistance of pulmonary circulation decreased significantly. In patients with silicosis pulmonary pressure being elevated at rest reached pathological values under load while resistance of circulation decreased less. There was no difference in cardiac time-volume between both groups. The authors found a linear correlation between cardiac time-volume and oxygen uptake related to body surface. They derived a formula of approximating cardiac time-volume by oxygen uptake and body surface.
mesh_terms: D002302:Cardiac Output; D006439:Hemodynamics; D006801:Humans; D008168:Lung / Q000503:physiopathology*; D011652:Pulmonary Circulation; D012829:Silicosis / Q000503:physiopathology*; D013997:Time Factors; D014655:Vascular Resistance
vernacular_title: Hämodynamische Analyse des Lungenkreislaufes bei Gesunden und bei Silikosepatienten mit initialer arterieller pulmonaler Hypertonie mittels Schwemmkathetertechnik