Featured conditions Brain tumor, breast cancer, colon cancer, congenital heart disease, heart arrhythmia. See more conditions.
Featured conditions
A septal myectomy is an open-heart surgery. A surgeon removes part of the thickened, overgrown septum between the lower heart chambers called the ventricles, as shown in the heart on the right.
Mayo Clinic does not endorse companies or products. Advertising revenue supports our not-for-profit mission.
Check out these best-sellers and special offers on books and newsletters from Mayo Clinic Press.