• Am. J. Cardiol. · Jun 1990

    Randomized Controlled Trial Clinical Trial

    A dose-finding study of the hemodynamic effect of isosorbide dinitrate spray in congestive heart failure.

    • R Klein and T Sharir.
    • Cardiology Department, Rebecca Sieff Hospital, Zefat, Israel.
    • Am. J. Cardiol. 1990 Jun 4; 65 (21): 39J-42J.

    AbstractA dose-finding study of the hemodynamic effect of a new formulation of isosorbide dinitrate (ISDN) spray was performed in 12 patients with chronic congestive heart failure. Doses of 1.25, 2.5, 5.0 mg and placebo, as 1 squirt, were randomly given to all patients. Hemodynamic measurements were performed by a Swan-Ganz catheter before and at 30 seconds and 1, 5, 10, 20 and 30 minutes after drug administration and every 30 minutes thereafter, until return of hemodynamic variables to baseline. Hemodynamic improvement evident as decreases in right-sided pressures and an increase in cardiac output was observed within 1 minute from administration of ISDN spray, and peaked at 5 minutes. Near maximal effect was achieved by the 2.5-mg dose. Thus, 2.5 mg of ISDN spray (new formulation) dose. Thus, 2.5 mg of ISDN spray (new formulation) produces rapid, near-maximal hemodynamic improvement in patients with congestive heart failure.

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