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  • Title: Alcohol septal ablation for hypertrophic obstructive cardiomyopathy: a review of the literature.
    Author: Veselka J.
    Journal: Med Sci Monit; 2007 Apr; 13(4):RA62-8. PubMed ID: 17392660.
    Abstract:
    Hypertrophic obstructive cardiomyopathy (HOCM) is a common inheritable cardiac disorder that can lead to symptoms of dyspnea, angina pectoris, and syncope. Symptomatic patients are usually treated with negatively inotropic agents, such as beta-blockers, calcium channel blockers, or disopyramide. However, up to 10% of patients with outflow pressure gradient are unresponsive to medical therapy. Until the early 1990s, surgical myectomy represented the standard treatment for patients with HOCM and drug-refractory symptoms. More than one decade ago, alcohol septal ablation (ASA) was introduced as a less invasive alternative therapy for symptomatic HCM patients with obstruction. ASA is performed through a percutaneous approach, in which 1-3 ml of absolute alcohol is introduced into the septal branch to create a controlled septal infarction of the basal interventricular septum. This procedure results in relief of symptoms, a decrease in the pressure gradient, and improvement in left ventricular diastolic function. A randomized controlled trial is needed to compare ASA and surgical myectomy in order to determine which technique provides maximal benefit.
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