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Pulmonary Vein Isolation in AF Ablation

Catheter ablation technique for pulmonary vein isolation in atrial fibrillation.

Written by: Saygı Hospital Health Guide Editorial Board
Last updated:

This content has been compiled by the Saygı Hospital Health Guide Editorial Board and is periodically reviewed by a specialist physician.

References (5)

This content is for informational purposes only and does not constitute medical advice. You can book an appointment at our Kardiyoloji department. Book Appointment →

What is Pulmonary Vein Isolation in AF Ablation?

Pulmonary vein isolation (PVI) is the procedure of electrically isolating pulmonary vein foci, which are triggers of atrial fibrillation, from the left atrium. It is performed with RF ablation or cryoablation (balloon).

In paroxysmal AF, single-procedure ablation success is 70-80%. Persistent AF may require additional substrate modification. Superiority over antiarrhythmic drug therapy has been proven.

Symptoms

Symptomatic atrial fibrillation episodes
AF refractory to antiarrhythmic drug therapy
AF with heart failure (may improve EF)
Tachycardia-induced cardiomyopathy

Risk Factors

Left atrial dilatation (>50 mm — lower success rate)
Long-standing persistent AF
Obesity (increased recurrence risk)
Untreated obstructive sleep apnea (increases recurrence)
Advanced age

When to See a Doctor?

If you experience any of the following symptoms, seek medical attention promptly:

  • Symptomatic paroxysmal AF (unresponsive to one antiarrhythmic)
  • Symptomatic persistent AF
  • AF with heart failure (low EF)
  • When ablation is preferred as first-line treatment

Treatment Methods

01
Pulmonary vein isolation (radiofrequency or cryoballoon)
02
Procedure duration 2-3 hours (under general anesthesia)
03
Post-ablation anticoagulation (at least 2-3 months)
04
Blanking period (first 3 months — early recurrences are not prognostic)
05
Rhythm follow-up with 3-month Holter or event recorder
06
Long-term anticoagulation decision (per CHA2DS2-VASc, independent of ablation success)

Which Department to Visit?

You can visit our Kardiyoloji department for these complaints. Our specialist physicians will create the most suitable treatment plan for you.

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Health Disclaimer: The information on this page is prepared for general informational purposes only. It does not replace medical diagnosis and treatment. Please consult your physician for your complaints. Saygı Hospital does not accept responsibility for actions taken based on the information on this page.