B-scan ultrasonography in idiopathic hypertrophic subaortic stenosis. Study of left ventricular outflow tract and mechanism of obstruction.
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منابع مشابه
B-scan ultrasonography in idiopathic hypertrophic subaortic stenosis. Study of left ventricular outflow tract and mechanism of obstruction.
Studies were made with standard time motion and B-scan echocardiography on 48 patients including 5 with idiopathic hypertrophic subaortic stenosis (hypertrophic obstructive cardiomyopathy), undergoing diagnostic cardiac catheterization. The dimensions of the left ventricular outflow (O) and inflow (I) tracts were measured on the B-scan images. The outflow tract was significantly narrowed in idi...
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The clinical and haemodynamic significance of the subaortic pressure gradient in patients with muscular (hypertrophic) subaortic stenosis (hypertrophic obstructive cardiomyopathy) has long been debated. In this report we summarize the evidence which indicates that true obstruction to left ventricular outflow exists in these patients. Rapid left ventricular ejection, through an outflow tract nar...
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A subaortic membrane is an uncommon cause for left ventricular outflow tract obstruction. Hypertrophic cardiomyopathy with dynamic left ventricular outflow tract obstruction would mask the presence of the subaortic membrane on transthoracic echocardiography and cause a false diagnosis. We report a patient with subaortic stenosis due to flail subaortic membrane misdiagnosed as obstructive hypert...
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ژورنال
عنوان ژورنال: Heart
سال: 1976
ISSN: 1355-6037
DOI: 10.1136/hrt.38.6.595