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  • Title: [Diltiazem in chronic stable angina].
    Author: González-Hermosillo JA, Clemente AC, Salazar E.
    Journal: Arch Inst Cardiol Mex; 1986; 56(4):327-32. PubMed ID: 2945527.
    Abstract:
    The safety and efficiency of the administration of diltiazem was evaluated in 10 patients with class II-III chronic stable angina. All the patients had ischemic heart disease documented by coronary angiography and/or an abnormal exercise test. A dose related improvement in both frequency of angina and exercise capacity were obtained by diltiazem administered in increased doses using a single blind protocol. The weekly frequency of angina was reduced from 7.5 +/- 9.8 with placebo to 3.8 +/- 5.5, 1.1 +/- (p less than 0.05) and 0.7 +/- 0.9 (p less than 0.01) with doses of 120, 240 and 360 mg/day respectively. The exercise duration on treadmill was significantly increased from 8.5 +/- 3.6 to 10.6 +/- 3.7 min (p less than 0.05) with the 360 mg/day dose. The mean exercise time required to develop 1 mm ST depression was 6.1 +/- 3 min on placebo and was significantly delayed to 9.0 +/- 3.8 min (p less than 0.05) with the 240 mg/day dose and to 10.7 +/- 4.0 min with 360 mg (p less than 0.01). In a double blind randomized crossover phase, the time to the onset of ischemia during exercise was increased from 8.5 +/- 3.8 min with placebo to 11.05 +/- 2.8 min with 360 mg/day of diltiazem (p less than 0.01). Diltiazem in doses ranging from 120 to 360 mg/day is an effective antianginal agent with no significant adverse effects.
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