Do statins influence the prognostic impact of non-sustained ventricular tachycardia after ST-elevation myocardial infarction?

Eur Heart J

Institut für Herzinfarktforschung, Klinikum der Stadt Ludwigshafen, Bremserstr. 79, D-67063 Ludwigshafen am Rhein, Herzzentrum Ludwigshafen, Germany.

Published: June 2005

Aims: The study evaluates the effect of statin therapy on the prognostic impact of non-sustained ventricular tachycardia (NSVT) occurring after acute ST-elevation myocardial infarction (STEMI).

Methods And Results: From the German Acute Coronary Syndrome Registry (ACOS), 3137 patients with STEMI and in-hospital Holter monitoring were analysed. Three hundred and forty-six (11.0%) patients had NSVT. When compared with patients with no documented NSVT, patients with NSVT were older, more often had myocardial infarction in their history, diabetes mellitus, and an ejection fraction <40%. Regarding frequency of drug application, medication at discharge did not (beta-blockers, ACE-inhibitors, amiodarone) or only slightly (acetylsalicylic acid, statins, and sotalol) differ between both groups. Multivariable analysis of 1 year mortality, adjusted for age, gender, diabetes, reperfusion therapy, ejection fraction <40%, and beta-blocker therapy showed the following results: In patients without statin treatment and no NSVT, 1 year mortality after STEMI was 9.2%, but increased to 25.0% [odds ratio (OR) 3.02; 95% confidence interval (CI) 1.47-6.20], if NSVT were present. In patients on statin treatment and no NSVT, 1 year mortality was only 3.2%, and in the presence of NSVT 1 year mortality was not significantly increased anymore (5.3%; OR 1.03; 95% CI 0.55-1.92).

Conclusion: After STEMI, only in patients not on statin treatment, the occurrence of NSVT is associated with a significant and marked increase in 1 year mortality.

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http://dx.doi.org/10.1093/eurheartj/ehi150DOI Listing

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