Acute Myocardial Infarction

What is Acute Myocardial Infarction? Acute myocardial infarction, commonly known as a heart attack, is a subset of acute coronary syndrome that includes ST-elevation myocardial infarction (STEMI) and Non-ST-segment elevation myocardial infarction (NSTEMI).

What causes Acute Myocardial Infarction?

Acute coronary artery obstruction leads to decreased blood flow and oxygen to the heart muscle resulting in tissue damage and necrosis.

Symptoms of Acute Myocardial Infarction

  • Substernal pain, pressure, or discomfort that may radiate to the jaw, neck, left arm, or back.
  • Dyspnea
  • Nausea or abdominal discomfort
  • Sweating
  • Palpitations
  • Dizziness

Risk factors of Acute Myocardial Infarction

  • Age: Men over 45 and women over 55 years of age.
  • Gender: Men are at higher risk for MI
  • Positive family history
  • Smoking
  • Hyperlipidemia
  • Diabetes Mellitus
  • Hypertension
  • Obesity
  • Sedentary Lifestyle
  • Increased stress
  • Drug use

Source: Sweis, R. N., & Jivan, A. (2022, September). Acute Myocardial Infarction (MI). Merck Manuals Professional Edition.,or%20absence%20of%20serologic%20markers.