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Pulmonary Vein Isolation (Cryoablation)

An invasive ablation technique that uses cryothermal energy to electrically isolate the pulmonary veins in atrial fibrillation.

Written by: Saygı Hospital Health Guide Editorial Board
Published:

This content is for general information; please consult your physician for diagnosis and treatment.

References (5)

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What is Pulmonary Vein Isolation (Cryoablation)?

Pulmonary vein isolation (PVI) is a catheter ablation technique that electrically separates the left atrium from the pulmonary vein ostia, which harbor the triggers for atrial fibrillation (AF). In cryoablation a balloon catheter is positioned at the pulmonary vein ostium and cooled to −40 to −60 °C, producing a durable fibrotic lesion.

Cryoablation has become a widely used alternative to radiofrequency ablation for paroxysmal AF and has shortened procedure times. Guidelines recommend ablation as a class 1 indication in symptomatic drug-refractory patients.

The procedure is performed under fluoroscopy and sometimes intracardiac echocardiography. One-year AF-free survival after a successful isolation reaches 70–80% in selected patients.

Symptoms

Palpitations and irregular pulse
Reduced exercise capacity
Fatigue and weakness
Dyspnea
Chest discomfort
Dizziness
Syncope or presyncope

Risk Factors

Drug-refractory paroxysmal atrial fibrillation
Early-ablation candidates without structural heart disease
Symptomatic AF episodes
Hypertension
Sleep apnea
Obesity
Hyperthyroidism

When to See a Doctor?

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

  • Recurrent episodes of palpitations
  • AF episodes despite medical therapy
  • Syncope and presyncope
  • Worsening dyspnea
  • New palpitations after ablation
  • Groin hematoma or pain

Treatment Methods

01
Cryoballoon pulmonary vein isolation
02
Periprocedural anticoagulation
03
Phrenic nerve monitoring
04
Post-ablation antiarrhythmic therapy
05
Follow-up through the 3-month blanking period
06
Structural assessment with cardiac MRI
07
Management of underlying risk factors

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.