No, catheter ablation is generally considered a minimally invasive procedure rather than major surgery. It is performed using thin catheters inserted through blood vessels, typically in the groin, which are guided to the heart without the need for large incisions or open-heart surgery.
When Do Cardiologists Recommend Ablation for Arrhythmia?
An arrhythmia, or irregular heartbeat, can cause symptoms such as palpitations, dizziness, fatigue, shortness of breath, or episodes of rapid heartbeat. While medications are often used to manage abnormal heart rhythms, they do not always provide adequate symptom control or long-term effectiveness.
Cardiologists may recommend catheter ablation when symptoms persist despite medication, when medications cause troublesome side effects, or when long-term rhythm control is a treatment priority. Catheter ablation is commonly used to treat conditions such as atrial fibrillation (AF), atrial flutter, and supraventricular tachycardia (SVT).
The decision to proceed with ablation depends on the type of arrhythmia, symptom severity, response to treatment, and overall health.
Key Takeaways
- Catheter ablation is a minimally invasive procedure used to treat certain abnormal heart rhythms.
- It may be recommended when symptoms continue despite medication or when medication is poorly tolerated.
- Commonly treated arrhythmias include atrial fibrillation (AF), atrial flutter, and supraventricular tachycardia (SVT).
- Some patients may achieve better long-term rhythm control with ablation than with medication alone.
What Is Catheter Ablation?
Catheter ablation is a minimally invasive procedure that treats arrhythmias by targeting the areas of heart tissue responsible for abnormal electrical signals.
During the procedure, a cardiologist inserts thin tubes called catheters through blood vessels and guides them to the heart. Using specialised mapping technology, the source of the abnormal rhythm is identified. Heat (radiofrequency energy) or cold (cryoablation) is then applied to create small scars that interrupt the abnormal electrical pathway.
Catheter ablation does not require open-heart surgery and is commonly performed in a specialised cardiac laboratory. Recovery time varies, but many patients return home within one or two days.
Which Arrhythmias Can Be Treated with Catheter Ablation?
Catheter ablation can be used to treat several different arrhythmias.
| Arrhythmia | When Ablation May Be Considered |
|---|---|
| Atrial Fibrillation (AF) | When symptoms persist despite medication, medications are not well tolerated, or maintaining a normal rhythm is a treatment priority. |
| Atrial Flutter | Often considered because the abnormal electrical circuit can usually be identified and targeted precisely. |
| Supraventricular Tachycardia (SVT) | Frequently used as a long-term treatment option for recurrent episodes of rapid heartbeat. |
| Ventricular Tachycardia (VT) | Selected patients, particularly those with recurrent episodes or underlying heart disease. |
A detailed assessment is needed to determine whether catheter ablation is likely to provide meaningful benefit.
When Do Cardiologists Recommend Ablation Instead of Medication?
While medications are often the first treatment option, catheter ablation may be considered in the following situations:
- Persistent Symptoms: Symptoms such as palpitations, dizziness, breathlessness, fatigue, or recurrent episodes of rapid heartbeat may continue despite appropriate medication.
- Medication Side Effects: Some anti-arrhythmic medications can cause side effects that affect quality of life, making alternative treatment options worth considering.
- Highly Treatable Arrhythmias: Certain arrhythmias, particularly many forms of SVT and atrial flutter, often respond well to catheter ablation because the abnormal electrical pathway can be precisely targeted.
- Need for Long-Term Rhythm Control: For selected patients, catheter ablation may provide a better chance of maintaining a normal heart rhythm than medication alone.
What Are the Risks and Limitations of Ablation?
Catheter ablation is generally considered safe, but all procedures carry some risk.
Potential complications may include:
- Bleeding
- Bruising
- Infection
- Blood vessel injury
- Arrhythmia recurrence
In rare cases, more serious complications can occur.
It is also important to understand that ablation does not guarantee a permanent cure. Some patients may require ongoing monitoring, medication, or a repeat procedure.
Personalised Arrhythmia Care at EH Heart Specialist
Catheter ablation can be an effective treatment option for certain arrhythmias, but whether it is appropriate depends on your specific heart rhythm condition, symptoms, overall health, and treatment goals. A thorough assessment by a cardiologist is important to determine the most suitable approach for managing your arrhythmia.
At EH Heart Specialist, we believe that every patient deserves a personalised approach to heart rhythm management. Our heart specialist (cardiologist), Dr Eric Hong, works closely with patients to evaluate their condition, discuss available treatment options, and determine whether catheter ablation may be a suitable approach based on their individual needs and treatment goals.
If you have been diagnosed with an arrhythmia or are experiencing symptoms such as palpitations, dizziness, or episodes of rapid heartbeat, schedule a consultation with us today to discuss whether catheter ablation may be an appropriate treatment option for you.
FAQs About Catheter Ablation for Arrhythmia
The procedure typically takes between two and four hours, although this can vary depending on the type of arrhythmia being treated and the complexity of the case. Your cardiologist can provide a more accurate estimate based on your condition.
Recovery varies from person to person. Many patients can resume normal daily activities within a few days, although strenuous exercise and heavy lifting may need to be avoided for a short period. Your cardiologist will provide specific recovery guidance based on the procedure performed.
Some patients can reduce or stop certain anti-arrhythmic medications after a successful procedure, while others may need to continue medication temporarily or long term. The need for ongoing treatment depends on the type of arrhythmia, the success of the procedure, and individual risk factors.
Yes. While catheter ablation can be highly effective, arrhythmias can sometimes recur. The likelihood of recurrence depends on the type of arrhythmia, underlying heart conditions, and individual patient factors. In some cases, a repeat ablation procedure may be recommended.
Meet Our Cardiologist in Singapore
Dr Eric Hong
Senior Consultant Cardiologist & Internal Medicine Physician
MB BCh (Ireland), MRCP (United Kingdom) FAMS (Cardiology), DIP (CBNC, USA) FSCAI (SCAI, USA), FACC (ACC, USA) FESC (European Society of Cardiology, France) FRCP (Edinburgh, United Kingdom)
“As a doctor, you treat people the way you want your family to be treated.”
- Dr Eric Hong
Dr Eric Hong is a dedicated cardiologist in Singapore with over 20 years of experience diagnosing, treating and helping prevent diseases affecting the heart and blood vessels, including coronary artery disease, heart rhythm disorders, heart failure and high blood pressure.
He is one of few cardiologists in Singapore who subspecialises in interventional cardiology, nuclear cardiology, and multi-modal cardiac imaging. Committed to achieving the best possible outcomes for his patients, heart specialist Dr Eric Hong brings diverse experience from Ireland and the United States, and is double fellowship-trained in the USA.