title: [Adrenalin and cardiac output in pregnancy (author's transl)].
abstract: The heart rate performance, cardiac output and catecholamine excretion were observed at rest in the ergometer test (40 min at 50 watts) in a group of 8 pregnant women whose case history and clinical record did not reveal any abnormal findings, during the course of pregnancy (20th, 28th and 36th weeks of pregnancy) as well as 2 and 12 weeks post partum. It was found that the cardiac output increased, dependent upon the heart rate, the stroke volume remaining approximately constant (max. + 60%) during pregnancy, compared with the controls post partum. There is a close linear correlation (r = 0.983) between the measured heart rates and the corresponding excretion of epinephrine (adrenalin) with the urine at rest and under load. It may be assumed that there is a causative link between the increase in secretion of catecholamine by the mother and the well-known change in cardiac output during pregnancy.
mesh_terms: D000328:Adult; D002302:Cardiac Output; D004837:Epinephrine / Q000652:urine*; D005260:Female; D006339:Heart Rate; D006801:Humans; D009638:Norepinephrine / Q000652:urine; D005082:Physical Exertion; D011247:Pregnancy
chemical_list: D009638:Norepinephrine; D004837:Epinephrine
vernacular_title: Adrenalin und Herzförderleistung in der Schwangerschaft.