Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography
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J Am Soc Echocardiogr · Jul 2007
Practice GuidelineACCF/ASE/ACEP/ASNC/SCAI/SCCT/SCMR 2007 appropriateness criteria for transthoracic and transesophageal echocardiography: a report of the American College of Cardiology Foundation Quality Strategic Directions Committee Appropriateness Criteria Working Group, American Society of Echocardiography, American College of Emergency Physicians, American Society of Nuclear Cardiology, Society for Cardiovascular Angiography and Interventions, Society of Cardiovascular Computed Tomography, and the Society for Cardiovascular Magnetic Resonance. Endorsed by the American College of Chest Physicians and the Society of Critical Care Medicine.
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J Am Soc Echocardiogr · Jul 2007
Clinical TrialRecovery of left ventricular systolic longitudinal strain after valve replacement in aortic stenosis and relation to natriuretic peptides.
We sought to examine left ventricular (LV) longitudinal systolic myocardial contractility in isolated valvular aortic stenosis (AS) before and after valve replacement and relation to natriuretic peptides. ⋯ LV longitudinal systolic strain is severely depressed despite preserved LV ejection fraction and fractional shortening in AS. A significant association exists among natriuretic peptides, myocardial longitudinal contractility, and the degree of symptoms. Reverse LV remodeling after aortic valve replacement with regression of myocardial hypertrophy results in improvement of LV longitudinal myocardial strain and decrease of Nt-pro-BNP plasma levels. LV strain analysis might have the potential to identify patients with asymptomatic AS who might benefit from earlier surgical intervention to preserve overall LV function.