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  • Title: [Hemodynamic and anti-angina effects of transdermal nitroglycerin after acute and chronic administration. Additive effect of sublingual isosorbide dinitrate].
    Author: Scardi S, Pandullo C, Pivotti F, Ceschia G, Pollavini G.
    Journal: G Ital Cardiol; 1986 Nov; 16(11):895-903. PubMed ID: 3104123.
    Abstract:
    To evaluate the acute and chronic anti-anginal efficacy of a Transdermal Therapeutic System, releasing 10 mg of nitroglycerin over 24 hours (TTS 10), and possible additional effects of isosorbide dinitrate 5 mg (ISDN) sublingually (s.l.), ten patients with stable exercise-induced angina pectoris and pathological coronary angiography were studied. The protocol of the trial consisted of an initial acute study, carried out in double-blind conditions and following a cross-over design, to compare TTS 10 and placebo. Cycloergometric exercise tests were performed on the first and second day, 3 hours after dosing. After a 30 minute rest period, a sublingual 5 mg dose of ISDN was given and 15 minutes later a further exercise test was carried out. Subsequently, patients received TTS 10 in single-blind conditions for 16 days. On the 15th and 16th day, stress test was repeated, 3 hours after the application of active plasters and, 30 minutes later, a further exercise test was performed, 15 minutes after a sublingual dose of ISDN 5 mg or placebo, given in double-blind conditions and in randomized sequence. After acute and chronic administration, TTS 10 significantly improved exercise tolerance in comparison with placebo. During the first acute study, ISDN 5 mg s.l., led to a significant reduction in systolic BP, a reflex increase in heart rate and a further improvement in exercise tolerance, whether patients were on placebo or TTS.(ABSTRACT TRUNCATED AT 250 WORDS)
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