Atrial fibrillation ablation

Atrial fibrillation ablation

Interventional treatment of atrial fibrillation by pulmonary vein isolation, to restore a regular heart rhythm.

What is it?

Atrial fibrillation is the most common heart rhythm disorder: the atria of the heart beat rapidly and chaotically, causing palpitations, breathlessness and fatigue. When medication is not enough to control the arrhythmia, ablation is an effective treatment option. The principle is based on the electrical isolation of the pulmonary veins, the areas from which most of the abnormal impulses triggering the fibrillation originate. Using catheters introduced through a vein and guided to the left atrium, the electrophysiologist creates an electrical barrier around these veins, preventing the abnormal signals from invading the heart. The procedure is guided by a three-dimensional mapping system that reconstructs the anatomy of the atrium in real time and enables highly precise treatment. The goal is to durably restore a regular rhythm, improve quality of life and reduce the need for antiarrhythmic medication. At Clinique Pasteur Tunis, atrial fibrillation ablation is performed in the dedicated electrophysiology laboratory, one of the reference centres for heart rhythm care in Tunisia, with attentive post-procedure monitoring and personalised follow-up.
Atrial fibrillation ablation

When is it indicated?

Symptomatic atrial fibrillation despite drug treatment

When medication can no longer calm the palpitations, breathlessness or fatigue linked to the fibrillation, ablation becomes the option of choice to restore a regular rhythm.

Recurrent paroxysmal atrial fibrillation

When episodes return regularly and then stop on their own, intervening at this stage offers the best chances of lasting success.

Intolerance or contraindication to antiarrhythmic medication

If rhythm medications cause side effects or are not advisable in your situation, ablation makes it possible to control the arrhythmia without depending on them.

Atrial fibrillation affecting cardiac function

Prolonged fibrillation can weaken the heart muscle; restoring a regular rhythm then helps the heart recover its contractile strength.

Patients seeking a lasting rhythm control strategy

For people who prefer a definitive solution rather than lifelong drug treatment, ablation aims at a durable return to normal rhythm.

Preparation

1Cardiology work-up with echocardiography, including a transoesophageal echocardiogram if needed
2Imaging of the left atrium (cardiac CT scan) to plan the procedure
3Rigorous management of anticoagulant treatment according to the electrophysiologist's instructions
4Fast for 6 hours before the procedure
5Anaesthesia consultation

Procedure

1

Positioning in the electrophysiology laboratory under sedation or general anaesthesia

2

Venous puncture at the groin crease and advancement of the catheters up to the heart

3

Access to the left atrium and anatomical reconstruction by 3D mapping

4

Electrical isolation of the pulmonary veins by energy applications

5

Verification of the effectiveness of the isolation

6

Removal of the catheters and continuous rhythm monitoring

Duration

2 to 4 hours

Results

Most patients notice a marked reduction or even disappearance of fibrillation episodes, with a lasting improvement in quality of life. Regular heart rhythm follow-up is organised, and anticoagulant treatment is continued according to each patient's profile. A second procedure is sometimes necessary to consolidate the result.

Risks and side effects

Bruising at the puncture site, generally without severity
Possible recurrences in the first months, often transient
Rare serious complications, prevented by 3D mapping and the team's experience

These risks remain rare. Your physician will inform you in detail before the examination.

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Contact us to schedule your examination or request a quote.

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At a glance

Duration: 2 to 4 hours
Preparation: Required
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