Efecto de Antagonistas de la Aldosterona en Arritmias Ventriculares
Clin. Cardiol. 33, 9, 572–577 (2010)
Background: Sudden cardiacdeath (SCD) from cardiac arrest, one of themost common types of cardiac-related death, ismost often triggered by ventricular arrhythmia (VA). It has been reported that aldosterone antagonists (AAs) have the benefit of reducing SCD in patientswith heart failure (HF). It also has been indicated in animal experiments and clinical trials that AAs may have an antiarrhythmic effect. Hypothesis: AAs have an effect on VA in patientswith HF or coronary artery disease. Methods: We searched the Cochrane Central Register of Controlled Trials, PubMed, Current Controlled Trials, and the National Research Register, and identified randomized controlled trials on the effect of AAs on VA. Results: All together, 7 trials with a total of 8635 patients were identified and extracted. AAs reduced the risk of SCD in patients with HF by 21% (relative risk [RR]: 0.79, 95% confidence interval [CI]: 0.67–0.93). AAs significantly reduced the episodes of ventricular premature complexes (mean difference 705 ± 646 episodes per 24 hours). Risk of ventricular tachycardia was reduced by 72% (RR: 0.28, 95% CI: 0.10–0.77). Conclusions: The additional administration of AAs in patients with HF or coronary artery disease shows a benefit in reducing the risk of SCD and may also be effective for reducing episodes of ventricular premature complexes and ventricular tachycardia.
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