Is a septal infarct a heart attack?

Yes: Infarction of heart muscle is a heart attack. The septum is a critical component of the heart muscle. Septal infarct is a heart attack.

Yes.: Heart attack means death of heart muscle. The septum is the part of the heart muscle between the left and right ventricles. "infarction" means tissue death.

Yes: Death if heart muscle is known as a myocardial infarction commonly called a heart attack. The septum refers to an specific area of the heart that in this case infarcts.