Synchronized Cardioversion (Overview)

ICU · Emergency/Cardiology · 10–20 min

Synchronized shock for unstable tachyarrhythmia with pulse.

Indications

  • • Unstable AF, atrial flutter, SVT, VT with pulse — hypotension, ischemia, HF, altered mental status

Contraindications

  • ⚠ Digoxin toxicity
  • ⚠ Stable arrhythmia (medical management first)

Equipment

  • • Defibrillator with sync mode
  • • Sedation (midazolam / etomidate)
  • • Airway kit

Positioning

  • • As appropriate for the procedure and patient comfort.

Consent

  • • Explain indication, benefits, alternatives
  • • Explain risks & complications
  • • Obtain written/verbal consent as per SOP
  • • Document consent

Universal precautions

  • • Hand hygiene
  • • PPE — gloves, mask, eye protection
  • • Aseptic technique
  • • Sharps safety
  • • Verify patient identity & site

Step-by-step (0/7)

Tap to complete

Confirm unstable arrhythmia.

Immediate complications

  • ⚠ VF (if unsynchronized)
  • ⚠ Post-shock hypotension
  • ⚠ Thromboembolism (AF > 48h)

Delayed complications

  • • Skin burn

Initial management

  • • Immediate defibrillation if VF

Prevention

  • • Anticoagulation if AF > 48h
  • • Confirm sync

Post-procedure observation

  • • Vitals q15min × 1h then hourly

Monitoring

  • • Site inspection
  • • Symptom review

Documentation

  • • Procedure note
  • • Consent
  • • Findings

Patient instructions

  • • Report pain, bleeding, fever, worsening symptoms

Related in WardRound

Educational bedside guide. Perform only under supervision until competent. Follow local SOPs and consent policy.

WardRound

WardRound

Clinical Decisions in Seconds