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Isosorbide Aerosol: An Option for the Treatment of Hypertensive Crises

German Vargas-Ayala, MD

José Juan Lozano-Nuevo, MD

Jorge Luis Narvaez-Rivera, MD

Leticia Rodríguez-López, MD

Francisco Javier Caballero-González, MD

Alberto Francisco Rubio-Guerra, MD

Plan de San Luis S/N Esq. Bandera Mexico City, C.P. 07330 Mexico

In this study the authors assessed the effectivenes and safety of isosorbide dinitrate aerosol administered through the oral mucosa in 30 adult patients who presented with a hypertensive crisis (mean arterial pressure > 130 mm Hg and evidence of target organ damage). The patients were given a first dose of 1.25 mg of aerosol when they were admitted to the hospital; a second dose was administered 15 minutes later if the mean arterial pressure had not decreased by > 15%. An electrocardiogram (ECG) was obtained for every patient immediately prior to and 30 minutes after administration of the medica tion. Nine patients (30%) had a good response with one dose, whereas 21 patients (70%) required a second dose. All 30 patients had a significant reduction of the arterial blood pressure (187 ± 13/121 ± 6.6 to 153 ± 15.3/92.3 ± 7.6 mm Hg; p < 0.005) as well as of the mean arterial pressure (136.6 ±8 to 109.5 ±7 mm Hg; p<0.005) in a period of 30 minutes. No adverse effects, rebound hypertension, or severe hypotension were observed. These figures remained under control for 6 hours. Two of the patients had angina pectoris at admission and their ECG showed subepicardial ischemia, both of which disappeared with the medication. A second ECG appeared normal. A reduction of 14% in heart rate was obtained (95 ± 15 to 82 ± 14 beats per minute; p < 0.005) . These observations suggest that isosorbide dinitrate aerosol is an effective and safe alternative for the treatment of patients with hypertensive crises.

Angiology, Vol. 50, No. 2, 137-142 (1999)
DOI: 10.1177/000331979905000207


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