We report a patient with severe mitral annular calcification, mitral stenosis/regurgitation, hypertrophic obstructive cardiomyopathy, and subaortic membrane treated with valved left atrium-left ventricle conduit, septal myectomy, and membrane resection. Subsequent thrombosis of the conduit prompted successful valve-in- mitral annular calcification transcatheter mitral valve replacement and laceration of the anterior mitral leaflet to prevent outflow obstruction. (Level of Difficulty: Advanced.).
Keywords: INR, international normalized ratio; LAMPOON, laceration of the anterior mitral leaflet to prevent outflow obstruction; LVOT, left ventricular outflow tract; MAC, mitral annular calcification; TMVR, transcatheter mitral valve replacement; computed tomography; echocardiography; hemodynamics; mitral valve; pulmonary hypertension; valve replacement.
© 2022 The Authors.