PMID- 19966175 OWN - NLM STAT- MEDLINE DCOM- 20100422 LR - 20131121 IS - 1940-4034 (Electronic) IS - 1074-2484 (Linking) VI - 15 IP - 1 DP - 2010 Mar TI - Trimetazidine shortens QTc interval in patients with ischemic heart failure. PG - 31-6 LID - 10.1177/1074248409354601 [doi] AB - BACKGROUND: Trimetazidine improves functional class and left ventricular function in patients with heart failure; however, its potential impact on QTc interval remains undefined. We analyzed the effects of trimetazidine on QTc interval in patients with ischemic heart failure. METHODS: A prospective trial included 42 patients with ischemic heart failure (New York Heart Association [NYHA] 2 or 3) and reduced left ventricular ejection fraction (<55%), who were randomly allocated to conventional therapy plus trimetazidine in a modulated release formulation (35 mg twice daily; 22 patients) or conventional therapy alone (20 patients; controls). We measured QTc interval at baseline and after 1 month. RESULTS: At baseline, QTc interval duration was similar in both groups (443 +/- 41 milliseconds in trimetazidine group vs 446 +/- 27 milliseconds in controls, P = .62). After 1 month, QTc interval decreased in the trimetazidine group (404 +/- 36 milliseconds, P = .0002) but not in controls (452 +/- 25 milliseconds, P = .74). QTc interval shortening with trimetazidine was more pronounced in patients with prolonged (>440 milliseconds) baseline QTc interval (-45 +/- 38 milliseconds) than in patients with normal QTc interval (-19 +/- 19 milliseconds P = .04). Significant QTc interval shortening (>20 milliseconds) was present in 14 of 22 patients (64%) in trimetazidine group compared to 3 of 20 (15%) patients in control group (P = .002). CONCLUSIONS: Trimetazidine therapy is associated with QTc interval shortening in patients with ischemic heart failure. FAU - Zemljic, Gregor AU - Zemljic G AD - Advanced Heart Failure and Transplantation Center, Division of Cardiology, Ljubljana University Medical Center, Ljubljana, Slovenia. gregor.zemljic@gmail.com FAU - Bunc, Matjaz AU - Bunc M FAU - Vrtovec, Bojan AU - Vrtovec B LA - eng PT - Journal Article PT - Randomized Controlled Trial DEP - 20091204 PL - United States TA - J Cardiovasc Pharmacol Ther JT - Journal of cardiovascular pharmacology and therapeutics JID - 9602617 RN - 0 (Vasodilator Agents) RN - N9A0A0R9S8 (Trimetazidine) SB - IM MH - Aged MH - Angiography MH - *Electrocardiography MH - Female MH - Heart Failure/*drug therapy/*physiopathology MH - Humans MH - Male MH - Middle Aged MH - Myocardial Ischemia/*drug therapy/*physiopathology MH - Regression Analysis MH - Trimetazidine/*pharmacology MH - Vasodilator Agents/*pharmacology MH - Ventricular Function, Left/drug effects EDAT- 2009/12/08 06:00 MHDA- 2010/04/23 06:00 CRDT- 2009/12/08 06:00 PHST- 2009/12/08 06:00 [entrez] PHST- 2009/12/08 06:00 [pubmed] PHST- 2010/04/23 06:00 [medline] AID - 1074248409354601 [pii] AID - 10.1177/1074248409354601 [doi] PST - ppublish SO - J Cardiovasc Pharmacol Ther. 2010 Mar;15(1):31-6. doi: 10.1177/1074248409354601. Epub 2009 Dec 4.