Radiofrequency and Cryoablation of the Posterior Wall of the Left Atrium

Inclusion Criteria:

• Age over 18 years old;

• Atrial fibrillation resistant to antiarrhythmic therapy;

• Persistent and long-persisting form of atrial fibrillation;

• The patient's consent to participate in the study.

Exclusion Criteria:

• Age under 18 and over 80 years old;

• The presence of another cardiac pathology requiring surgical treatment;

• Congenital heart defects;

• Previous "open" cardiac surgery;

• Bone marrow diseases;

• Pathology of the blood coagulation system;

• The left ventricular ejection fraction is less than 40%;

• Moderate to severe renal insufficiency (creatinine clearance <50 ml/min);

• Drug-resistant hypertension (despite hypotensive therapy);

• Organically altered mitral valve;

• There are reasons to assume that the patient will not show up for subsequent visits (control points of the study) for various reasons;

• The patient's participation in another clinical trial.