The Resus Room

Acute Coronary Syndrome; Roadside to Resus

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Sep 15, 2021
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INSIGHT

Understanding ACS Definition

  • Acute coronary syndrome (ACS) covers unstable angina, NSTEMI, and STEMI but not stable angina.
  • Differentiation starts with ECG and the presence of myocardial injury markers like troponin.
INSIGHT

Pathophysiology of ACS

  • ACS mainly results from atherosclerotic plaque rupture or erosion causing thrombus and myocardial ischemia.
  • Ischemia without necrosis appears as unstable angina; necrosis is seen in NSTEMI and STEMI.
INSIGHT

Five MI Classifications Explained

  • MI is classified into five types; type 1 is classic plaque rupture, type 2 is supply-demand mismatch, and types 3-5 involve special scenarios.
  • Recognizing MI types helps understand underlying causes and clinical implications.
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