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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 65 (1987), S. 317-323 
    ISSN: 1432-1440
    Keywords: Breast cancer ; Complete remission ; Remission maintenance ; Intensive short-term chemotherapy ; Medroxyprogesterone acetate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Aiming at a high complete remission rate with an intensive induction regimen, 27 patients with advanced breast cancer were given three cycles of VAC chemotherapy consisting of vinde-sine 3 mg/m2 i.v. on days 1 and 12, adriamycin 40 mg/m2 i.v. on days 1 and 12, and cyclophosphamide 200 mg/m2 p.o. on days 3–6 and 14–17 together with medroxyprogesterone acetate (MPA) 1,500 mg p.o. daily during the induction phase and 1,000 mg p.o. thereafter until relapse. These VAC double cycles were repeated twice with 3-weekly intervals for a total induction period of 15 weeks. In responders, including no change, the chemotherapy was discontinued thereafter, and the patients were observed until relapse with a maintenance therapy of MPA 1,000 mg p.o. daily. A complete remission (CR) was achieved in 8 (29.6%) and a partial remission (PR) in 13 (48.2%) of the 27 patients (CR + PR 77.8%). A no change (NC) status was found in 6 patients (22.2%). There were no nonresponders. The median duration of the CR was 20 (5–42) months with two patients still in CR at 33 and 36 months, of the PR 8.3 (4–13.5) months, and of the NC 6.7 (2–13) months. The treatment was tolerated without life-threatening toxicity or interval prolongation by all patients. No dose-limiting cardiac toxicity was observed in these patients regularly controlled by left ventricular ejection fraction (LVEF). The high response rate of this intensive induction regimen warrants further investigation. Complete remission was achieved only in patients without previous chemotherapy, with marked tumor regression after the first chemotherapy cycle and when there was no extensive bone involvement.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-1440
    Keywords: Kidney disease ; Uremia ; Hypertension ; Cardiovascular system ; Cardiac glycosides ; Nierenerkrankung ; Urämie ; Hypertonie ; Herzgefäßsystem ; Herzglykoside
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Die Häufung kardialer Komplikationen bei terminaler Niereninsuffizienz ist nicht nur Folge einer chronischen Druckbelastung des linken Ventrikels, obwohl sich der Anteil der Hypertoniker mit fortschreitender renoparenchymatöser Erkrankung von 53 auf 81% erhöht. Andere Faktoren wie Anämie, Hyperparathyreoidismus, autonome Neuropathie und Retention von Elektrolyten, Stoffwechselprodukten oder Toxinen können das Herz schädigen. Ob die Urämie selbst eine Kardiomyopathie verursacht, ist noch nicht geklärt. Befunde über eine verminderte Ca++-Aufnahme während β-adrenerger Stimulation und über eine verminderte Reaktion der Membran-(Na+, K+)-ATPase auf Digitalis lassen eine tiefgreifende Änderung des myokardialen Membranstoffwechsels vermuten. Eine Retention von “endogenem Digitalis” bei Niereninsuffizienz könnte eine Reihe widersprüchlicher Befunde erklären.
    Notes: Summary The high incidence of cardiac complications in endstage renal failure is not only related to the chronic pressure load of the left ventricle, although the proportion of patients with elevated blood pressure increases from 53 to 81% as reno-parenchymal disease progresses. Other factors as anemia, hyperparathyroidism, autonomic neuropathy and retention of electrolytes, metabolic products or toxins may cause damage to the heart. It is a matter of discussion whether uremia itself causes cardiomyopathy. Findings of a reduced Ca++-uptake during β-adrenergic stimulation and a reduced reaction of (Na+, K+)-ATPase to digitalis suggest a basic change of myocardial membrane metabolism. Retention of an “endogenous digitalis” could help to explain some contradictory results.
    Type of Medium: Electronic Resource
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