title: Subaortic stenosis missed by invasive hemodynamic assessment.
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.
authors.affiliation: University of Alabama and Birmingham, Veterans Affairs Medical Center, Division of Cardiology, Birmingham, Alabama, USA. fadihage@uab.edu
authors.forename: Fadi G
authors.initials: FG
authors.lastname: Hage
authors.forename: Gilbert J
authors.initials: GJ
authors.lastname: Zoghbi
authors.forename: Raed A
authors.initials: RA
authors.lastname: Aqel
authors.forename: Navin C
authors.initials: NC
authors.lastname: Nanda
mesh_terms: D001024:Aortic Valve Stenosis / Q000150:complications* / Q000000981:diagnostic imaging*; D004452:Echocardiography / Q000379:methods*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014694:Ventricular Outflow Obstruction / Q000000981:diagnostic imaging* / Q000209:etiology*