myocardial infarction; heart attack
Medical term for a heart attack caused by blockage of a coronary artery. In everyday Japanese, 心臓発作 is also used for heart attack, but 心筋梗塞 specifically refers to myocardial infarction.
My father was hospitalized due to a myocardial infarction.
Improving one's diet is important for preventing myocardial infarction.