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2007, Number 2

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Acta Med 2007; 5 (2)

Pulmonary veins ablation to treat atrial fibrillation

Sandia ZA, Pérez PI, Del Río BE, Díaz GEJ, Rodríguez WFL

Language: Spanish
References: 40
Page: 81-87
PDF size: 93.79 Kb.


ABSTRACT

The auricular fibrillation (AF) is an arrhythmia characterized by the fast and irregular contraction of the auricles. It is the arrhythmia maintained more frequent in the man. Its prevalence is of around 0.5% according to the population in study and reaches 8% in the old patients. The Framingham study demonstrated a prevalence of AF of 12% in the greater ones of 70 years in comparison with 5% between the 60 and 70 years. In its acute form this arrhythmia is treated with betablockers, calcium antagonist, anticoagulation, and occasionally with cardiovertion with greater probabilities of success near of 90%. The arrhythmia tends to resort to one or two years of initiated pharmacological treatment in 50% of the patients, which has taken to look for new forms to reestablish the sinusal rate in patient with chronic auricular fibrillation. Now we have new alternatives to treat AF mainly for patients who have not respond to habitual pharmacological treatment, repelling in beneficial form on its morbimortality. Diverse studies have shown the paper of the pulmonary veins like center of AF trigger, which has motivated the development of techniques of ablation by radiofrequency, towards that point, which it has reported probabilities of success until in a 70%, also other surgical alternatives that include the epicardical ablation with microwaves and the surgery of Maze. Nevertheless due to the great success exist with transcateter this procedure is not favored at the present time. The ablation of the auricular fibrillation in its chronic form when this one is symptomatic must be in first instance transvenous catheter ablation.


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