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Supraventricular Tachycardia (SVT) Ablation
What is Supraventricular Tachycardia (SVT) Ablation?
Supraventricular Tachycardia (SVT) Ablation is a minimally invasive, catheter-based procedure used to treat abnormal heart rhythms that originate in the upper chambers of the heart (atria). SVT is characterized by sudden episodes of rapid heartbeats, which can be disruptive, uncomfortable, and sometimes alarming for patients.
During the procedure, a Cardiac Electrophysiologist inserts a thin, flexible catheter into a blood vessel—usually in the groin—and guides it to the heart. Using radiofrequency energy (heat) or cryoablation (cold), the physician targets and destroys the faulty electrical pathway responsible for triggering SVT episodes. This ablation process effectively interrupts the abnormal circuit, allowing the heart to return to and maintain a normal rhythm.
SVT ablation is considered a highly effective treatment, and in many cases, it cures the condition, significantly reducing or eliminating the need for long-term medications. It offers lasting symptom relief and improved quality of life for patients living with recurrent episodes of SVT.
Benefits & Risks of Supraventricular Tachycardia (SVT) Ablation
Benefits
For patients with frequent or severe episodes of SVT, ablation offers several key benefits:
- Long-Term Relief: Eliminates abnormal heart rhythms and significantly reduces the likelihood of recurrence.
- Minimally Invasive: Performed using a catheter inserted through a vein in the groin, requiring no major incisions.
- Avoids Long-Term Medication Use: Reduces or eliminates the need for antiarrhythmic drugs, which can have side effects.
- Quick Recovery: Most patients resume normal activities within a few days after the procedure.
Risks
While SVT ablation is a safe and effective procedure, potential risks include:
- Bleeding or Bruising: Minor bleeding at the catheter insertion site is common and usually resolves on its own.
- Heart Block: In rare cases, ablation may affect normal electrical pathways, requiring a pacemaker.
- Blood Clots or Stroke: Though rare, catheter procedures carry a small risk of clot formation.
- Arrhythmia Recurrence: Some patients may require a repeat procedure if SVT returns.
- Minor Chest Discomfort: Temporary chest discomfort or palpitations may occur as the heart heals.
What to Expect With Supraventricular Tachycardia (SVT) Ablation
Before the Procedure
- Your doctor will perform tests, such as an electrocardiogram (ECG), echocardiogram, or Electrophysiology study (EPS), to pinpoint the abnormal electrical pathway.
- You may need to stop certain medications, such as blood thinners, before the procedure.
- Fasting for several hours prior to the procedure is typically required.
- The access site (usually the groin) will be cleaned and numbed with a local anesthetic.
During the Procedure
- A catheter is inserted through a vein in the groin and guided to the heart using imaging technology.
- The doctor identifies the area responsible for SVT using electrical signals.
- Radiofrequency energy (heat) or cryoablation (cold) is applied to destroy the abnormal tissue causing the arrhythmia.
- The catheter is removed, and the access site is closed with a small bandage or closure device.
After the Procedure
- Patients are monitored for a few hours and typically go home the same day.
- Avoid strenuous activities and heavy lifting for a few days.
- Mild bruising or discomfort at the catheter insertion site is normal and should subside quickly.
- Most patients experience a significant reduction or complete resolution of SVT episodes.
- Follow-up visits may be scheduled to monitor heart rhythm and overall recovery.
Am I a Candidate for Supraventricular Tachycardia (SVT) Ablation?
SVT ablation may be recommended for patients who:
- Experience frequent or severe episodes of SVT that interfere with daily life.
- Do not respond well to medications or other non-invasive treatments.
- Have SVT episodes that cause fainting, dizziness, or significant discomfort.
- Prefer a long-term solution rather than ongoing medication therapy.
Prioritize Your Heart With Advanced Cardiac Care
We are committed to delivering expert treatment options to support your heart health. If you have SVT or have questions about the procedure, we're here to offer guidance and reassurance.
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Our Cardiovascular Specialists Are Here for You
Our experienced Electrophysiologists specialize in advanced techniques like SVT ablation to provide long-term relief from abnormal heart rhythms. With state-of-the-art technology and a patient-centered approach, we ensure the best possible outcomes for those suffering from SVT.