title: [Diltiazem in chronic stable angina].
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.
mesh_terms: D000328:Adult; D000787:Angina Pectoris / Q000188:drug therapy*; D002908:Chronic Disease; D002986:Clinical Trials as Topic; D003327:Coronary Disease / Q000503:physiopathology*; D004110:Diltiazem / Q000008:administration & dosage / Q000627:therapeutic use*; D004305:Dose-Response Relationship, Drug; D004341:Drug Evaluation; D004562:Electrocardiography; D005080:Exercise Test; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010919:Placebos
chemical_list: D010919:Placebos; D004110:Diltiazem
vernacular_title: Utilidad del diltiazem en la angina de esfuerzo crónica estable.