Myocardial infarction (MI), also known as a heart attack, occurs when there is an obstruction of blood flow to the heart. This results in ischemia or cell death as the heart is starved of oxygen and other necessary nutrients. A person typically experiences chest pain, dizziness, pain down the arm or into the jaw, fatigue, nausea and more. These signs and symptoms warrant immediate medical attention.
A study found that myocardial infarction occurred in 1.9% of controls vs 4.1% of people with migraine.