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Your electrical cardioversion checklist
Keep this guide with your medication plan and discharge instructions.
Before you arrive
- Read the medication and fasting plans. Your team must complete any intentional blanks before you follow them.
- Complete scheduled tests. Bring your current medicine list and allergy information.
- Arrange an adult driver and someone to stay with you after sedation.
Procedure date / arrival time:
Facility / check-in location:
Before you leave
Keep the current medication list, recovery instructions and follow-up details together. Have conflicting instructions resolved before discharge. Use the emergency warning signs in this guide.
Follow-up date / location:
Practice phone: ____________________
After-hours number / route: ____________________
UNDERSTANDING YOUR PROCEDURE
Electrical cardioversion
Before and after elective cardioversion for atrial fibrillation or atrial flutter
What the procedure does
Electrical cardioversion uses a brief, synchronized electrical shock through pads on the chest and back or chest to restore a regular rhythm. This guide is for planned cardioversion of atrial fibrillation or atrial flutter, not an emergency procedure. It does not involve catheter ablation or an implanted device.
On the day
You receive short-acting sedation or anesthesia through an IV so you are asleep or unaware during the shock. The team monitors your heart rhythm, oxygen and blood pressure. One or more shocks may be needed. You recover until awake and stable and usually go home the same day with an adult driver.
Benefits and risks
Cardioversion may improve symptoms by restoring a regular rhythm, but it may not work or the irregular rhythm may return. Risks include a clot or stroke, a slow or other abnormal rhythm, skin irritation or burns, and breathing or blood-pressure problems from sedation. Serious complications are uncommon but possible.
Getting ready
Medicines and fasting
For planned cardioversion, reliable blood thinner use is important. When AF has lasted at least 48 hours or its duration is uncertain, the usual plan is at least 3 weeks of uninterrupted therapeutic anticoagulation beforehand, or imaging to exclude a clot. Follow the timing supplied by your team. Tell the procedure team about missed doses or out-of-range warfarin INR results before proceeding; the team may need imaging or a delay, not just an extra dose.
Blood thinner / antiplatelet plan
Food and drink plan
SGLT2 medicines
GLP-1 medicines
Any separate written instructions for insulin or other diabetes medicines take priority; do not apply a general morning-medicine instruction to them.
Recovering at home
What to expect
You may feel tired for the rest of the day and have mild skin soreness at the pad sites. Do not use how your pulse feels to decide whether to stop blood thinners or other medicines.
Follow-up
Appointment / return-to-work details:
When to get help
Call 911
- Severe or sudden chest pain or trouble breathing, fainting, or stroke symptoms such as facial droop, arm weakness or trouble speaking.
Do not drive yourself. Do not wait for a message or remote-monitor response.
Contact the clinic the same day
A sustained return of a rapid or irregular heartbeat, even if you otherwise feel well; persistent skin pain or blistering at the pad sites, or new symptoms that are not improving.
For warning symptoms after hours, use the contact route below. If you cannot reach the team and symptoms are worsening, seek urgent assessment. Use 911 for the severe symptoms listed above.
Practice phone: ____________________
After-hours number / route: ____________________
Follow your personalized medication and recovery plan. This guide supports, but does not replace, the consent discussion or your treating team’s instructions.