Ventricular flutter


  • Ventricular flutter is an extreme form of ventricular tachycardia (VT), with a loss of organised electrical activity
  • It is usually associated with hemodynamic collapse

  • It usually quickly degenerates to ventricular fibrillation

  • It is generally caused by a reentry mechanism

ECG characteristics

  • It is usually not possible to distinguish the P wave, QRS complex, ST segment and T wave.
  • It has a rapid frequency at approximately 200-300/min
  • It usually has a sinusoidal pattern


  • approach is equivalent to a patient with Ventricular fibrillation = DC version

ECG 1 Ventricular flutter with a rate of approximately 300/min, no distinguishable P waves, QRS complexes and T waves


  1. “Ventricular Fibrillation And Ventricular Flutter”. 2015. Ecg From Basics To Essentials, December, 305-310.
  2. Balemans, Wendy, Wim Van Hul, Marian Valko, Jan Moncol, Lee A. Denson, Maria Mela, Ulrich Thalheimer, et al. 2009. Encyclopedia Of Molecular Mechanisms Of Disease.