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The Annals of Thoracic Surgery, Vol 43, 561-563, Copyright © 1987 by The Society of Thoracic Surgeons

ARTICLES

Dynamic left ventricular outflow tract obstruction when the anterior leaflet is retained at prosthetic mitral valve replacement

PC Come, MF Riley, RM Weintraub, JY Wei, JE Markis, BH Lorell and W Grossman

Dynamic left ventricular outflow tract obstruction developed in a patient in whom the anterior leaflet was retained at mitral valve replacement. It was caused by systolic anterior movement of the native anterior leaflet. Reduced outflow tract diameter, resulting from both posterior displacement of the septum and anterior displacement of the native anterior leaflet by porcine stents, was likely instrumental in promoting dynamic obstruction.

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