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Cardiogenic Shock Cardiology Medicine Physiotherapy

Causes of Cardiogenic Shock

In this article we will discuss various Causes of Cardiogenic Shock

In this article, we will discuss various Causes of Cardiogenic Shock. So, let’s get started.

Causes

1. Following myocardial infarction

(a) Involvement of critical muscle mass (>40%) and/or refractory arrhythmias (80%)

(b) Mechanical complications of AMI (acute myocardial infarction)

  • Acute mitral regurgitation due to rupture of papillary muscle or chordae tendineae of 6-7%
  • Acquired Acquired ventricular septal defect (3-4%)
  • Left ventricular free wall rupture/tamponade
  • Ventricular aneurysm

2. Severe valvular lesions

  • Severe aortic (stenosis/regurgitation) or mitral (stenosis/regurgitation) valve disease
  • Left ventricular outflow tract obstruction
  • Obstructive cardiomyopathy

3. Extracardiac obstructive causes

  • Pericardial effusion with tamponade (1-1.5%)
  • Massive pulmonary embolism
  • Severe pulmonary hypertension (primary or Eisenmenger)
  • Severe restrictive cardiomyopathy

4. Inflammatory/infectious myocardial disease

  • Severe myocarditis
  • Acute endocarditis with myopathic or valvular involvement

5. Severe myocardial depression

  • Septic shock
  • Acidosis or alkalosis
  • Hypoxia
  • Drugs, e.g. beta-blockers, calcium channel blockers, anaesthetics and anti-arrhythmics
  • Post-cardiac arrest, post-cardiotomy

6. End stage of myocardial disease

  • Dilated cardiomyopathy

7. Traumatic, e.g. pericardial, myocardial or valvular injuries.

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