Cardiac Mapping & Ablation
Cardiac mapping and ablation are advanced medical procedures used to diagnose and treat certain types of heart rhythm disorders (arrhythmias).
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What is a Cardiac Mapping & Ablation?
Cardiac Mapping & Ablation is a specialized medical procedure used to diagnose and treat abnormal heart rhythms (arrhythmias). Cardiac mapping is the first phase, where physicians create a detailed map of the heart's electrical activity to identify the abnormal areas causing the arrhythmia. Ablation is the second phase, where these targeted areas are then treated (ablated) to correct the irregular heartbeat. This treatment can be performed using radiofrequency energy (heat) or cryoablation (cold) to create tiny scars in the heart tissue to block the abnormal electrical signals and restore a normal heart rhythm.
Why is the Procedure Performed?
Treat arrhythmias that have not responded to medication or other treatments, or when those treatments are not preferred by the patient.
Common arrhythmias treated:
Atrial fibrillation (AFib)
Atrial flutter
Supraventricular tachycardia (SVT)
Ventricular tachycardia (VT)
How is Cardiac Mapping & Ablation Performed?
Cardiac Mapping & Ablation is performed in our electrophysiology (EP) lab under sedation determined by your physician. The process involves:
Catheter Insertion: Thin, flexible tubes (catheters) are inserted through a vein in the groin (or sometimes the neck or arm) and guided to the heart with the help of live X-ray images.
Mapping: Once the catheters reach the heart, they collect data on the heart's electrical activity to pinpoint the problem areas.
Ablation: After identifying the problematic tissue, the catheter tips deliver energy (either radiofrequency or cryoenergy) to create small scars that block the abnormal electrical signals.
Monitoring: The heart's activity is monitored to ensure the arrhythmia is corrected. If the initial ablation does not correct the arrhythmia, the process may be repeated.
What are the Risks and Benefits?
Benefits
Effective treatment for many types of arrhythmias, potentially curing the arrhythmia or significantly reducing its occurrence and severity.
Improvement in symptoms and quality of life.
Decreased need for long-term medication use.
Risks
As with any medical procedure, Cardiac Mapping & Ablation does involve potential risks. These may include:
As with any procedure involving the heart, there are risks, though serious complications are rare. These can include bleeding or infection at the catheter insertion site, damage to the heart or blood vessels, blood clots, stroke, and in rare cases, worsening of the arrhythmia or the need for a pacemaker.
The risk of complications varies based on the individual's health, the type of arrhythmia, and the specific procedure used.
What to Expect
During Cardiac Mapping & Ablation, you will be in a special room called an electrophysiology (EP) lab. You will provided sedation determined by your physician. The procedure can last from 2 to 4 hours, depending on the complexity of your arrhythmia. You will be lying on a table, and monitors will track your heart rate, blood pressure, and oxygen levels.
Preparing for Cardiac Mapping & Ablation
How to Prepare for Your Procedure
Fasting: You will need to fast (not eat or drink) for 8 hours before the procedure.
Medication Review: Discuss all medications you are taking with your physician, as some may need to be adjusted or stopped temporarily.
Pre-Procedure Testing: You may undergo tests, such as blood tests, an EKG, or imaging studies before your procedure.
Medications to Discuss Before the Procedure
Blood Thinner Medications: You may be asked to stop taking medications, such as blood-thinning medications a few days before the procedure to reduce the risk of bleeding. Do not stop any medications without first consulting your healthcare provider.
Antiarrhythmic Medications: Depending on the type of arrhythmia, your physician might adjust or temporarily stop your antiarrhythmic medications.
Other Medications: Inform your physician about all over-the-counter medications, supplements, and herbal treatments you are taking, as some may need to be paused.
Diabetic Medications: Instructions will be provided on how to adjust or stop insulin or oral hypoglycemics due to fasting.
What to Bring with You
A complete list of all your medications, including supplements and over-the-counter items.
Identification and insurance cards.
A change of clothes and personal care items, in case an overnight stay is needed.
After the Procedure
A List of Medications: Bring a list of your current medications, including doses and how often you take them.
Personal Items: Wear loose-fitting clothing to the procedure and leave valuables at home.
Medical Insurance Information: Have your medical insurance card and any necessary medical documents or referrals with you.
Tips for a Healthy Recovery
Get plenty of rest in the days following your procedure.
Stay well hydrated, unless told otherwise by your doctor.
Eat a balanced, heart-healthy diet to support healing.
Join a cardiac rehab program if your provider recommends it.
When to Call Your Doctor
Sudden chest pain, shortness of breath, fainting, or heavy bleeding should be treated as emergencies.
Watch for infection signs around the catheter site such as redness, swelling, warmth, or discharge, as well as fever.
Contact your physician if you have questions or concerns about your recovery, especially if you notice changes in your heart rhythm or other new symptoms.
Have a Question? Check Here!
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Ablation therapy has many different uses. For people with heart problems, such as atrial fibrillation, ablation is used to correct the disorder and improve quality of life. Some types of ablation therapy are used instead of open surgery to spare healthy tissue and lower the risks of surgery. Ablation therapy is often used instead of open surgery to treat thyroid nodules or tumors in the breast.
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You may need to stop eating or drinking for several hours before the procedure and review your medications with your doctor ahead of time.
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You will be provided sedation determined by your physician. Thin, flexible tubes called catheters will be inserted through a vein in your groin and guided to your heart. You may feel some pressure but should not experience pain. The procedure typically lasts a few hours, depending on the complexity of your arrhythmia.
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While complications are rare, risks may include bleeding or infection at the catheter insertion site, damage to the heart or blood vessels, blood clots, stroke, and in rare cases, worsening of the arrhythmia or the need for a pacemaker.
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You’ll need to rest and be monitored for a few hours. You may feel a bit groggy from the sedation. Some patients experience minor discomfort at the catheter insertion site. All patients will go home the same day unless otherwise determined by your physician.
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You can usually return to regular activities within a few days or a week, but your doctor will give you specific instructions based on your health and how the procedure went.
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Keep the insertion site clean and dry, and watch for signs of infection. Follow your physician's instructions regarding care for the catheter insertion site, taking medications, and resuming normal activities.
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Call your doctor if you experience chest pain, difficulty breathing, excessive bleeding or swelling at the catheter insertion site, fever, or signs of infection.
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You may be prescribed new medications or continue with your previous regimen. It is important to take all medications as directed.
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Once you’re fully awake and stable, you’ll be allowed to eat and drink within 4-6 hours —often starting with water and light food.