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Articles

The effect of trimetazidine on left ventricular systolic function and physical tolerance in patients with ischaemic cardiomyopathy

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Pages 493-499 | Received 30 May 2006, Accepted 19 Jun 2007, Published online: 23 May 2017
 

Abstract

Objective —Trimetazidine (TMZ) is the first of novel antianginal drugs with a cardioprotective effect, selectively inhibiting mitochondrial long-chain 3-ketoacyl coenzyme A thiolase. This study tested the hypothesis that the cytoprotective beneficial effect of this agent can lead to the improvement of left ventricular (LV) systolic function and tolerance to physical activity in patients with ischaemic cardiomyopathy.

Methods and results — In 82 consecutive patients with ischaemic cardiomyopathy, a subgroup of patients (n = 42) was assigned to receive a modified form of TMZ (35 mg twice daily) in addition to the conventional therapy for the duration of three months.All patients underwent clinical, echocardiography examination and a six-minute walk test at baseline and after a three-month treatment. The therapy with TMZ significantly improved the functional class in these patients. Left ventricular ejection fraction (LVEF) increased by 3.5 ± 6.72% (from 34.5 ± 3.8% to 38.0 ±4.8%) in the TMZ group vs. 0.8 ± 8.06% (from 32.4 ± 5.6% to 33.2 ± 5.8%) in the control group (P = 0.05). The tolerance to physical activity improved by 30.0 ± 20.7 m in the TMZ group (from 215 ± 17.5 m to 245 ± 20.7 m) vs. 2.0 ± 18.85 m (from 208.2 ±12.4 m to 210.2 ±14.2 m) in the control group (P < 0.001).

Conclusions — A therapeutic intervention with TMZ in conjunction with the standard therapy, over a three-month period, is associated with an increase in LVEF and improved tolerance to physical activity in patients with ischaemic cardiomyopathy.

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