Wide QRS

Criteria

• QRS interval > 100 msec

Causes

• Ventricular Tachycardia
  A wide QRS can be caused by a ventricular rhythm or a ventricular pacemaker.
• Ventricular Bigeminy
  A wide QRS can be caused by a ventricular rhythm or a ventricular pacemaker.
• Ventricular Escape
  A wide QRS can be caused by a ventricular rhythm or a ventricular pacemaker.
• Ventricular Escape Beat
  A wide QRS can be caused by a ventricular rhythm or a ventricular pacemaker.
• Ventricular Flutter
  A wide QRS can be caused by a ventricular rhythm or a ventricular pacemaker.
• Ventricular Pacing
  A wide QRS can be caused by a ventricular rhythm or a ventricular pacemaker.
• SVT with Aberrancy
  Wide complexes can be either ventricular, or supraventricular with aberrancy.
• Left Bundle Branch Block
  A wide QRS can be caused by a left bundle branch block.
• Right Bundle Branch Block
  A wide QRS can be caused by a right bundle branch block.
• Hyperkalemia
  A wide QRS can be caused by hyperkalemia.
• Sodium Channel Blocker Toxicity
  A wide QRS can be caused by sodium channel blocker toxicity.
• Wolff Parkinson White Syndrome
  A wide QRS can be caused by Wolff Parkinson White Syndrome.
• Hypothermia
  A wide QRS can be caused by hypothermia.

Abbreviation

• Wide QRS

See Also