CARDIOLOGY

ACUTE CORONARY SYNDROME

ECG

Basics

  • Axis: combining methods I and II works for me.

Ischaemia

Mel Herbert’s differential list for a ‘WTF’ ECG:

  • Electrolyte abnormalities especially high potassium
  • Toxicology
  • Myocardial Ischaemia
  • Wolf-Parkinson White (WPW)
  • Lead misplacement or Artefact
  • Pacemaker malfunction

LVH

  • Sokolov-Lyon criteria (S wave depth in V1 + tallest R wave height in V5-V6 > 35 mm)
  • LV strain pattern – TWI and ST depression in left sided leads.

Hypothermia

  • Key findings = tremor artefact, j-waves/osborne waves, prolongation of intervals, junctional rhythm

ARRYTMIAS

Atrial Fibrillation

Torsades

Dr Smith ECG Blog

Pacing

  • Placing magnet over:
    • PPM = stops sensing and resets it to baseline/simple pacing (ie. makes it stupid – stops it thinking – fires at a specific rate)
    • AICD = stops defibrilating

SYNCOPE

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