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Acute blood pressure response to trandolapril and captopril in patients with left ventricular dysfunction after acute myocardial infarction.

Author(s): Weber S, Vaur L, Ounnoughene Z, Schwob J, Dubroca I, Normand J, Etienne S, Charbonnier B

Affiliation(s): CHU Cochin, Paris, France.

Publication date & source: 2002-02, Am Heart J., 143(2):313-8.

Publication type: Clinical Trial; Multicenter Study; Randomized Controlled Trial

OBJECTIVE: Our purpose was to compare the blood pressure response to short-term treatment with captopril or trandolapril in patients with left ventricular (LV) dysfunction after acute myocardial infarction (AMI). METHODS: A multicenter, randomized, double-blind, double-dummy, parallel group study was performed. Treatment was initiated 3 to 10 days after the onset of symptoms. On day 1, patients received a single dose of captopril 6.25 mg, trandolapril 0.5 mg, or placebo in the morning. Treatment was then titrated upward over the next 5 days. Blood pressure was monitored with an automated device for the first 12 hours after dosing on day 1. Conventional blood pressure measurements were performed throughout the study. RESULTS: Of 205 patients treated in the study, 193 patients were evaluated for first-dose effects. In the captopril group, the maximum decrease in blood pressure occurred after 2 hours, and the magnitude of this decrease was significantly greater than in the other 2 groups: 8.8 +/- 12/6.3 +/- 8 mm Hg (captopril) versus 5.4 +/- 10/3.1 +/- 8 mm Hg (trandolapril) versus 2.4 +/- 9/1.4 +/- 7 mm Hg (placebo) (P <.01). In the trandolapril group, the maximum decrease occurred after 7 hours and the magnitude of this effect was similar in all 3 groups: 5.9 +/- 11/3.6 +/- 8 mm Hg (trandolapril) versus 4.3 +/- 10/3.5 +/- 8 mm Hg (captopril) versus 3.1 +/- 11/2.8 +/- 8 mm Hg (placebo) (not significant). Although there was a higher incidence of hypotension on day 1 in the captopril group, the overall incidence of hypotension during the study period was similar in both active treatment groups. CONCLUSION: Because of differences in initial blood pressure response profiles, short-term treatment with trandolapril tended to be better tolerated than captopril in post-AMI patients with LV dysfunction.

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