The best replacement for fibrillation is flutter.

The best alternatives to fibrillation are rated as following:
★★★★★  flutter
★★★★  atrial flutter
★★★★  tachycardia
★★★  ventricular fibrillation
★★★  fasciculation
★★★  ventricular tachycardia
★★  arrhythmia
★★  svt
★  atrial fibrillation
★  supraventricular tachycardia
★  defibrillation
★  mitral valve prolapse
★  palpitations
  asystole
  mat
  normal sinus rhythm
  torsades
  junctional rhythm
  sinus arrhythmia
  palpitation
  irregular heartbeat
  psvt
  pulseless ventricular tachycardia
  pvc's
  valvular
  sinus tachycardia
  fasciculations

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

Other search terms related to fibrillation and their ratings are:
★★★★★ rvr
★★★ pacemaker
★★ anticoagulation
★★ rapid ventricular rate
★ pulse
★ bradycardia
★ complete heart block
★ pauses
★ heart failure
bundle branch block
wpw
ventricular rate
ventricular tachycardia
hypotension
You have in mind a companion for fibrillation and it is not yet here? Propose!



Google Trends

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