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  • 11
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 53 (1975), S. 1133-1134 
    ISSN: 1432-1440
    Keywords: Furosemide ; ethacrynic acid ; haemodynamic ; Furosemid ; Ethacrynsäure ; Hämodynamik
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei 12 Patienten (1–4 Monate nach akutem Myocardinfarkt) wurde das Verhalten hämodynamischer Parameter in Ruhe und unter Belastungsbedingungen vor und nach i.v. Injektion von Furosemid und Ethacrynsäure untersucht. Herzzeitvolumen, Herzfrequenz und arterieller Druck zeigen nach Applikation von Furosemid und Ethacrynsäure keine signifikanten Veränderungen. Während nach Injektion von Ethacrynsäure (trotz gleich starker Diurese wie nach Furosemid) eine gerichtete Veränderung des diastolischen Pulmonalarteriendruckes (PA d) und rechten Vorhofdruckes (RA) nicht zu beobachten ist, bewirkt Furosemid bereits wenige Minuten nach Applikation eine signifikante Senkung des linksventriculären Füllungsdruckes (PA d) und des rechten Vorhofdrucks (RA). Diese hämodynamischen Veränderungen sind als Folge eines direkten dilatorischen Effektes von Furosemid auf die Kapazitätsgefäße aufzufassen. Eine entsprechende direkte Gefäßwirkung von Ethacrynsäure ist nicht nachzuweisen.
    Notes: Summary The haemodynamic effects of intravenous injections of furosemide and ethacrynic acid were studied in 12 patients during rest and excercise. Cardiac output, heart rate and arterial blood pressure showed no significant changes after injection of furosemide or ethacrynic acid. Few minutes after injection of furosemide there were significant falls of pulmonary artery diastolic pressure and right atrial pressure, whereas no changes were seen after injection of ethacrynic acid. This initial effect of furosemide apparently is of primarily vascular origin, causing an increased peripheral venous capacitance. Ethacrynic acid failed to exhibit any direct vascular effect
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    Springer
    Naturwissenschaften 66 (1979), S. 264-265 
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 13
    ISSN: 1432-1912
    Keywords: Glycosides ; Coronary Occlusion ; Myocardial Concentration ; Epicardial Electrocardiogram
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 26 mongrel dogs were given a single dose of 0.03 mg/kg tritium-labelled digoxin, β-methyldigoxin, digitoxin or ouabain 2 hrs or 95 hrs following experimental coronary occlusion. Examination of the epicardial ECG was performed by moving from intact to ischemic or necrotic zones. 60 min after glycoside administration the animals were sacrificed and tissue samples from the marked heart muscles areas and from the skeletal muscle were analysed for glycoside content. The early glycoside uptake in acute ischemic or necrotic myocardium was diminished independently of the physicochemical properties of the glycoside. Significantly higher glycoside concentrations (ng/g wet weight) were measured in the injured myocardium 3 hrs after coronary occlusion than 96 hrs afterward (p〈0.005). The values in acute ischemic myocardium varied considerably. This non-homogeneity of glycoside uptake in the acute ischemic heart muscle may partly explain the increased sensitivity to glycosides in myocardial infarction. The decline of glycoside concentration correlates with the alterations in the epicardial ECG. The cardiac effects of cardenolides 60 min after intravenous administration was caused by the unchanged glycoside. In contrast to the myocardium, glycoside accumulation could not be found in the skeletal muscle. The concentrations of digoxin, β-methyldigoxin and digitoxin in the skeletal muscle were significantly higher than the concentration of ouabain, which was rapidly eliminated via the urine.
    Type of Medium: Electronic Resource
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