Thoracoscopic Transmitral Myectomy for an Anatomically Complex Case With Midventricular Obstruction

A 51-year-old man was diagnosed with hypertrophic obstructive cardiomyopathy with left ventricular outflow tract obstruction at the subaortic and midventricular level combined with mitral systolic anterior motion and systolic anterior motion-related mitral regurgitation. The mildly thickened basal and nonthickened midventricular anteroseptum combined with the predominantly hypertrophic basal and midventricular inferoseptum made this case...