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Journal Article
Review
Asymptomatic Severe Aortic Valve Stenosis-When to Intervene: a Review of the Literature, Current Trials, and Guidelines.
Current Cardiology Reports 2018 October 12
PURPOSE OF REVIEW: The optimal treatment for asymptomatic patients with severe aortic valve stenosis (AS) is not clearly known. Here, we review the available data on the management of such patients.
RECENT FINDINGS: Half of patients with severe AS are asymptomatic at the time of diagnosis, and are at risk for adverse events, including sudden cardiac death. A significant proportion of these patients develop AS-related symptoms within 1 or 2 years. Clinical and echocardiographic characteristics are predictors of poor outcomes and can guide treatment decisions. Several non-randomized studies and meta-analyses have suggested benefit from early AVR for asymptomatic severe AS, including improved all-cause, cardiovascular, and valve-related mortality. Based on the available information, current guidelines suggest aortic valve replacement in the presence of specific characteristic, including left ventricular dysfunction and very severe AS with significantly elevated gradients. Although the available data suggests early AVR improves the clinical outcomes of these patients, most patients in current practice are managed conservatively. Six randomized trials are ongoing to better elucidate the ideal management of asymptomatic severe AS patients.
RECENT FINDINGS: Half of patients with severe AS are asymptomatic at the time of diagnosis, and are at risk for adverse events, including sudden cardiac death. A significant proportion of these patients develop AS-related symptoms within 1 or 2 years. Clinical and echocardiographic characteristics are predictors of poor outcomes and can guide treatment decisions. Several non-randomized studies and meta-analyses have suggested benefit from early AVR for asymptomatic severe AS, including improved all-cause, cardiovascular, and valve-related mortality. Based on the available information, current guidelines suggest aortic valve replacement in the presence of specific characteristic, including left ventricular dysfunction and very severe AS with significantly elevated gradients. Although the available data suggests early AVR improves the clinical outcomes of these patients, most patients in current practice are managed conservatively. Six randomized trials are ongoing to better elucidate the ideal management of asymptomatic severe AS patients.
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