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Definition:

Cardiogenic shock is the failure of the heart to pump sufficient volume of blood to maintain adequate perfusion of the body tissues. Cardiogenic shock or pump failure can occur secondary to various cardiac problems including:

  • (Acute Cardiogenic Ischemia - complete blockage of the coronary artery)
  • Cardiac arrhythmias (bradycardia and tachyarrhythmias).
  • Congestive heart failure.
  • Pericardial tamponade.
  • Pulmonary embolism.
  • Tension pneumothorax.

Signs and Symptoms:

  • BP below 90mmHg or falling trend.
  • Arrhythmias.
  • Neck vein distension and peripheral oedema (sign of right heart failure or outflow obstruction). Note: may not be present if also hypovolaemic.
  • Wet lungs (Left Heart Failure or back up in pulmonary veins).



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