Systolic anterior motion of mitral valve following resection of subaortic membrane and intracardiac repair of tetralogy of fallot

• Main Authors: Krishna Prasad Gourav, Bhupesh Kumar, Imran Bhat, Anand K Mishra
• Format: Article
• Language: English
• Published: Wolters Kluwer Medknow Publications 2020-01-01
• Series: Annals of Cardiac Anaesthesia
• Subjects: left ventricular outflow tract obstruction; sub-aortic membrane; systolic anterior motion of the mitral valve; tetralogy of fallot
• Online Access: http://www.annals.in/article.asp?issn=0971-9784;year=2020;volume=23;issue=3;spage=357;epage=360;aulast=Gourav
• ISSN: 0971-9784

Systolic anterior motion (SAM) of the mitral valve is commonly observed in patients with hypertrophic obstructive cardiomyopathy and in few patients after mitral valve repair or aortic valve replacement. It may cause significant hemodynamic instability due to left ventricular outflow tract (LVOT) obstruction and resulting mitral regurgitation. Subaortic septal bulge is considered as a one of the risk factor for the development of SAM as it narrows the LVOT. We report a case of tetralogy of fallot with subaortic septal bulge who developed SAM of the anterior mitral leaflet, intraoperatively, after resection of a subaortic membrane.