fibrillation
Chaotic cardiac rhythm
Fibrillation is rapid, irregular twitching of muscle fibers, especially in the heart.
In atrial fibrillation, the heart's upper chambers quiver chaotically instead of contracting rhythmically, disrupting blood flow.
Ventricular fibrillation is immediately life-threatening—the heart's main pumping chambers flutter uselessly, requiring defibrillation to restore normal rhythm.
Of upper heart chambers
- ventricularOf heart's lower chambers
- arrhythmiaAbnormal cardiac rhythm
- flutterRapid light movement
- tachycardiaExcessively fast pulse
palpitations · electrocardiogram · echocardiogram · ablation · catheter · electrophysiology · anticoagulation · warfarin
Involuntary rhythmic shaking
- flutterRapid light movement
- twitchInvoluntary muscular jerk
- quiverTrembling or arrow case
- spasmInvoluntary muscle contraction
fasciculation · trembling · rippling · disorganized · chaotic · uncoordinated · rapid · fine
Violent sudden disturbance
- paddlesHandheld water propulsion tools
- electrodesElectrical contact points
- AEDAutomated shock device
- joulesSI energy units
cardioversion · resuscitation · CPR · synchronized · unsynchronized · antiarrhythmic · lidocaine
atrial
Of upper heart chambers
- ventricularOf heart's lower chambers
- arrhythmiaAbnormal cardiac rhythm
- flutterRapid light movement
tachycardia · palpitations · electrocardiogram · echocardiogram · ablation · catheter · electrophysiology · anticoagulation · warfarin · thromboembolism
tremor
Involuntary rhythmic shaking
spasm · fasciculation · trembling · rippling · disorganized · chaotic · uncoordinated · rapid · fine · coarse
shock
Violent sudden disturbance
- paddlesHandheld water propulsion tools
- electrodesElectrical contact points
- AEDAutomated shock device
joules · cardioversion · resuscitation · CPR · synchronized · unsynchronized · antiarrhythmic · lidocaine
sudden
Occurring without prior notice
ambulance · resuscitation · CPR · AED · lifesaving · critical · ICU · survival · bystander
- cardiologyheart attack, heart failure, heart rate, heartbeat, cardiologist
- electrical injurieselectric shock, electrocution, lightning strike, electrical burn, entry wound
- heart conditionsheart failure, heart disease, heart attack, arrhythmia, cardiomyopathy
- heart responsesheart rate, pulse, slow heartbeat, palpitations, racing heart
- muscle movementscontraction, flexion, extension, twitch, spasm
- ECGECG, EKG, electrodes, leads, waveform
- atrial fibrillationDisorganized cardiac rhythm disorder
- ventricular fibrillationDeadly heart rhythm disorder
defibrillation, fibrillating, fibrillations, defibrillations