期刊
JACC-CARDIOVASCULAR IMAGING
卷 10, 期 1, 页码 66-77出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.jcmg.2016.11.003
关键词
functional remodeling; left atrium; reverse remodeling; structural remodeling
The left atrium is considered a biomarker for adverse cardiovascular outcomes, particularly in patients with left ventricular diastolic dysfunction and atrial fibrillation in whom left atrial (LA) enlargement is of prognostic importance. LA enlargement with a consequent decrease in LA function represents maladaptive structural and functional remodeling that in turn promotes electrical remodeling and a milieu conducive for incident atrial fibrillation. Medical and nonmedical interventions may arrest this pathophysiologic process to the extent that subsequent reverse remodeling results in a reduction in LA size and improvement in LA function. This review examines cellular and basic mechanisms involved in LA remodeling, evaluates the noninvasive techniques that can assess these changes, and examines potential mechanisms that may initiate reverse remodeling. (C) 2017 by the American College of Cardiology Foundation.
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