A 78-year-old woman underwent surgical intervention for severe atrial
functional mitral regurgitation and left ventricular apical aneurysm
secondary to apical hypertrophic cardiomyopathy. Apical hypertrophic
cardiomyopathy can cause atrial fibrillation and atrial functional
mitral regurgitation. Left ventricular apical aneurysms can cause fatal
arrhythmias, which may require surgical intervention.