Irregular heart rhythms, or arrhythmias, can lead to serious health complications such as blood clots, stroke, pulmonary embolism, or even sudden cardiac arrest. Cardioversion is a medical procedure used to restore a normal heart rhythm in individuals with abnormal heartbeats, such as atrial fibrillation (AFib), atrial flutter, or ventricular tachycardia.
This procedure not only improves the efficiency of the heart but also significantly reduces the risk of complications. Keep reading to learn about the types of cardioversion, how they work, and when each is typically recommended.
Types of Cardioversion
There are two main types of cardioversion: electrical and chemical. Both methods are used to correct abnormal heart rhythms and restore a normal heartbeat.
- Electrical Cardioversion
Electrical cardioversion uses a controlled electric shock to reset the heart’s rhythm. It is commonly used to treat atrial fibrillation or atrial flutter, especially when these rhythms have not responded to medication.How It Works:
During the procedure, patches (electrodes) are placed on the patient’s chest—and sometimes on the back. These electrodes deliver a quick, low-energy shock to the heart. The shock is carefully timed with the heart’s natural electrical cycle to avoid inducing more serious arrhythmias.Procedure Overview- Performed as an outpatient procedure
- Carried out under light sedation or general anesthesia
- Lasts only a few minutes
- Patients are usually able to go home the same day
- Chemical (Pharmacological) Cardioversion
Chemical cardioversion involves the use of antiarrhythmic medications to restore a normal heart rhythm, without the use of electric shocks.How It Works:
Medications are administered either orally or intravenously to target and correct irregular electrical activity in the heart.When It’s Used
Chemical cardioversion is often recommended:- When electrical cardioversion poses a higher risk
- In cases of less severe arrhythmias such as AFib or atrial tachycardia
- As a first-line treatment before considering electrical cardioversion
Why Is Cardioversion Necessary?
Irregular heart rhythms can affect the heart’s ability to pump blood efficiently, leading to symptoms like:
- Heart palpitations
- Shortness of breath
- Chest pain
- Dizziness or fainting
More seriously, conditions like atrial fibrillation can increase the risk of blood clot formation, especially in the left atrium. If a clot travels to the brain or lungs, it can cause a stroke or pulmonary embolism.
Cardioversion helps prevent these complications by restoring a normal rhythm and improving overall heart function.
Wrapping Up
Cardioversion is a key treatment for individuals with abnormal heart rhythms such as AFib, atrial flutter, or ventricular tachycardia. Whether done electrically or chemically, the goal is the same: to restore a regular rhythm and protect long-term heart health.
The procedure is typically safe, effective, and well-tolerated—helping patients return to a more active and healthy lifestyle.
At Memorial Cardiology Associates, we offer expert cardioversion services using advanced technology and personalized care. Contact us today to schedule your consultation and learn more about how we can help you maintain a healthy heart.