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  • Title: Subaortic stenosis missed by invasive hemodynamic assessment.
    Author: Hage FG, Zoghbi GJ, Aqel RA, Nanda NC.
    Journal: Echocardiography; 2008 Oct; 25(9):1007-10. PubMed ID: 18771542.
    Abstract:
    We present a case of 61-year-old man that was evaluated for possible aortic stenosis but did not show a left ventricular outflow gradient on invasive assessment in the catheterization laboratory. Transthoracic echocardiography showed subaortic stenosis secondary to a discrete membranous structure in the left ventricular outflow tract. This is the first case in the literature of a patient with discrete subaortic stenosis missed by invasive hemodynamic assessment.
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