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.
The deadline to have twice the impact to advance healthcare research is May 15.