The best replacement for ventricular fibrillation is ventricular tachycardia.

The best alternatives to ventricular fibrillation are rated as following:
★★★★★  ventricular tachycardia
★★★★★  atrial fibrillation
★★  torsades
★★  tachycardia
★  flutter
★  asystole
★  coarse ventricular fibrillation
★  polymorphic ventricular tachycardia
  cardiac arrest
  pulseless electrical activity
  ventricular flutter
  fine

Your alternative for ventricular fibrillation is not listed? Suggest!
Speaking about ventricular fibrillation, one probably shouldn't forget about cardiac arrest.

Other search terms related to ventricular fibrillation and their ratings are:
★★★★★ cardiac arrest
You have in mind a companion for ventricular fibrillation and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of ventricular fibrillation in all years. Click on graph for more.
ventricular fibrillation
ventricular tachycardia
atrial fibrillation