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You are here: Contents > 2018-19 > Volume 28 Number 1 (2018-19) > CASE REPORT > Discrete Sub-Aortic Membranous Stenosis In The Elderly: An Imposter For Left Ventricular Hypertrophic Outflow Obstruction

Discrete Sub-Aortic Membranous Stenosis In The Elderly: An Imposter For Left Ventricular Hypertrophic Outflow Obstruction

Rodney De Palma1,2, Goran Abdula1, Nawzad Saleh1

1Heart and Vascular Theme, Karolinska University Hospital, and Department of Medicine, Karolinska Institute, Stockholm, Sweden
2Electrolnic correspondence: rodney_de_palma@icloud.com

Acquired symptomatic left ventricular outflow obstruction in mature adults is frequently attributed to hypertrophic cardiomyopathy in the absence of aortic valvular stenosis. Sub-aortic membranous stenosis is a rarely encountered pathology that can produce similar symptoms. A case is presented which, initially, was considered as cardiomyopathy but which was due to a discrete sub-aortic membrane. The clinical presentation, diagnosis, natural history, treatment and outcomes of sub-aortic stenosis are discussed. The importance of multimodality assessment in

 

distinguishing between sub-aortic stenosis and both obstructive and non-obstructive hypertrophic cardiomyopathy is emphasized.

Video 1: Transthoracic echocardiographic 3 chamber view showing septal hypertrophy and a sub-aortic membrane.

Video 2: CMR 3 chamber view showing ventricular hypertrophy and sub-aortic membrane with overlying flow disturbance.

The Journal of Heart Valve Disease 2015;24:66-71

Discrete Sub-Aortic Membranous Stenosis In The Elderly: An Imposter For Left Ventricular Hypertrophic Outflow Obstruction

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