{"id":14066,"date":"2026-07-06T12:49:36","date_gmt":"2026-07-06T12:49:36","guid":{"rendered":"https:\/\/www.kauveryhospital.com\/blog\/?p=14066"},"modified":"2026-07-06T12:49:36","modified_gmt":"2026-07-06T12:49:36","slug":"pulsed-field-ablation-a-safer-treatment-for-afib","status":"publish","type":"post","link":"https:\/\/www.kauveryhospital.com\/blog\/heart-health\/pulsed-field-ablation-a-safer-treatment-for-afib\/","title":{"rendered":"Pulsed Field Ablation – A safer treatment for AFib?"},"content":{"rendered":"

Summary<\/strong><\/h2>\n

Pulsed field ablation (PFA) is a minimally invasive treatment for atrial fibrillation (AFib)<\/a> and other heart rhythm disorders. Unlike traditional ablation methods that use heat or cold, PFA uses short, high-energy electrical pulses to destroy abnormal heart tissue while minimizing damage to nearby structures such as the oesophagus, diaphragm, and nerves. It is often recommended for patients with persistent AFib who do not respond well to medication. During the two-hour procedure, a catheter is guided to the heart through a vein in the groin to deliver targeted pulses. Recovery is usually quick, with most patients discharged the same day and experiencing significant symptom improvement within three months.<\/p>\n

What is Pulsed Field Ablation? <\/strong><\/h2>\n

Pulsed field ablation is a minimally invasive surgical technique used to treat heart arrhythmias. The technique uses brief, high-energy electrical waves to target and destroy specific heart tissues. This helps block or reduce the production of abnormal electrical signals that cause arrhythmia. Conventional ablation uses radio frequency waves or cryogenic (cold) techniques to destroy the tissue. Pulsed field ablation uses electrical pulses, which limits the collateral damage to surrounding tissues, especially the oesophagus, the stomach, the diaphragm and the nerves to the lungs.<\/p>\n

Who is a good candidate for Pulsed Field Ablation? <\/strong><\/h2>\n

Patients with persistent atrial fibrillation (AFib), who don\u2019t respond well to medication or conservative treatments are good candidates for pulsed field ablation. Patients who have both AFib and congestive heart failure may also be treated with this technique<\/a>.<\/p>\n

How to prepare for Pulsed Field Ablation <\/strong><\/h2>\n

Once your cardiologist <\/strong>diagnoses your condition as AFib, they may recommend pulsed field ablation if you qualify for the procedure. To prepare, the doctor will order a comprehensive set of scans and tests to get a better look at the heart. This includes an echocardiogram, cardiac CT and blood tests. This will help the surgeon create a 3D model of the patient\u2019s heart to help plan the intervention precisely. The doctor will also review the patient\u2019s medication, and adjust it leading up to the surgery. The patient will also need to bring along a friend or relative to care for them during their hospital stay, and drive them home after the surgery.<\/p>\n

Also Read: When the Heart Skips a Beat<\/a><\/div>\n

What happens during the procedure? <\/strong><\/h2>\n

The pulsed field ablation procedure takes about 2 hours. Before surgery, the patient is given anaesthesia, and will not feel any pain. The patient will also be given blood thinners to prevent clots. The surgeon then makes a tiny incision in the groin area and inserts a thin catheter through the blood vessel. The catheter is threaded up to the heart through the femoral vein. The surgeon uses real-time scans to guide the catheter with precision. Once the catheter has reached the target location, brief electrical pulses are generated by the electrode on its end. These electrical pulses destroy the target tissue, blocking the abnormal electrical signals from passing into the heart muscle. The surgeon may ablate the target tissue from multiple angles if required. Once the ablation is complete, the catheter is removed and the incision site is closed.<\/p>\n

What are the risks? \u00a0<\/strong><\/h2>\n

Pulsed field ablation is much safer than an open procedure. It is minimally invasive, and the patient can be discharged on the same day. However, it carries the same risks as other versions of catheter ablation, but to a lesser extent:<\/p>\n