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  • 1975-1979  (2)
  • 1925-1929
  • Deep vein thrombosis  (1)
  • Nucleus of the solitary tract  (1)
  • 1
    Electronic Resource
    Electronic Resource
    Central sites and mechanisms of the hypotensive and bradycardic effects of the narcotic analgesic agent fentanyl (1977)
    Springer
    Naunyn-Schmiedeberg's archives of pharmacology 296 (1977), S. 255-261 
    Details
    ISSN: 1432-1912
    Keywords: Baroreceptor reflex arc ; Carotid sinus nerve ; Centrally mediated vagal bradycardia ; Fentanyl ; Nucleus of the solitary tract
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary In dogs, anaesthetized with chloralose, fentanyl (5 μg/kg i.v.) augmented the bradycardia produced by electrical stimulation of the carotid sinus nerves. In contrast, the same dose of the drug did not change the bradycardic response to stimulation of the nucleus of the solitary tract (NTS) indicating that a central facilitation of baroreceptor impulses occurs within the NTS, probably at the first synapse of baroreceptor reflex fibres. Bilateral destruction of the NTS caused a ful-minating hypertension and tachycardia similar to that after cutting the baroreceptor afferent fibres. After both procedures, fentanyl (20 μg/kg i.v.) produced marked hypotension and bradycardia. The bradycardic effect was abolished by cutting both vagal nerves when the dogs were pretreated with a β-adrenoceptor blocking agent (S 2395, 50 μg/kg i.v.). The results provide evidence that the NTS is not the main site of action either for the hypotensive effect or for the vagally mediated bradycardia of fentanyl. Since the dorsal nucleus of the vagal nerve was destroyed together with the NTS, this nucleus does also not appear to be a major site of the action of fentanyl. Blockade of dopamine receptors by haloperidol or pimozide or of serotonin receptors by methysergide did not change the hypotensive, bradycardic and sympathoinhibitory effects of fentanyl.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00498691
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Das Verhalten intraoperativ entstandener tiefer Venenthrombosen, beurteilt anhand wiederholter Phlebographien (1976)
    Springer
    Journal of molecular medicine 54 (1976), S. 521-526 
    Details
    ISSN: 1432-1440
    Keywords: Deep vein thrombosis ; phlebography ; postoperative ; fibrinogen test ; postthrombotic syndrom ; Tiefe Venenthrombose ; Phlebographie ; postoperativ ; Fibrinogentest ; postthrombotisches Syndrom
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Im Rahmen einer prospektiven, randomisierten und kontrollierten Studie, in der die Thromboseprophylaxe-Mittel Dextran und Heparin bei allgemein-chirurgischen und urologischen Patienten geprüft werden, phlebographierten wir 31 Patienten mit sicherer tiefer Venenthrombose sofort nach der Diagnosestellung mittels125J-Fibrinogentest. 16 Patienten wurden 14 Tage später ein zweites Mal phlebographiert.Alle Thromben entstanden intraoperativ. 24 von 31 Patienten zeigten einemultifokale Entstehung der Thromben. Unabhängig vom Prophylaxe-Mittel und der eingeleiteten Therapie machten die Thromben in den ersten 14 Tagen nach deren Entstehung folgende Veränderungen durch: 9 retrahierten sich, 6 verschwanden, ohne Wandveränderungen aufzuweisen, und 1 verschloß das befallene Gefäß noch vollständig. 2 Thromben verschwanden ohne jegliche Therapie; 4 weitere unter Heparin- und/oder Phenprocoumonbehandlung.
    Notes: Summary Phlebography was carried out in a prospective randomised, controlled study during which dextran and small doses of s.c. heparin have been compared in general surgical and urological patients, in 31 persons with proven deep vein thrombosis diagnosed with the125I-fibrinogen test. In 16 out of the 31 patients a second phlebogram could be performed two weeks later. In this study all thrombi occurred intraoperatively. In 24 of the 31 patients, the appearance of thrombi was multilocular. Independent of the prevention instituted and irrespective of the therapy, the following phenomena could be seen 14 days after the first phlebogram: 9 thrombi retracted, 6 disappeared completely and 1 occluded the vein completely. 2 thrombi disappeared without any therapy whatsoever, the 4 others disappeared in patients receiving heparin and/or coumarin for treatment.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01468973
    Library Location Call Number Volume/Issue/Year Availability
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    Paper (German National Licenses)
    Fulltext
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