Resultados da ablação cirúrgica por radiofreqüência da fibrilação atrial crônica

Tratamento cirúrgico da fibrilação atrial crônica com eletrocautério convencional em cirurgia valvar mitral

“…Concerning operative times, the present study showed satisfactory rates in comparison to other techniques for surgical treatment of AF [16,17,27]. In the current study, mean CPB time was 52 minutes and mean aortic crossclamping time was 35 minutes.…”

“…Sie et al [15] published a study with the use of radiofrequency for AF ablation, in which they followed the lines proposed by Cox's procedure in a biatrial approach, reaching 79% of the regular rhythm at 6 months of clinical follow-up. Abreu Filho et al [16] published a study with similar characteristics to the abovementioned study, with a success rate of 72.7% patients free of AF at a 12-month follow-up. Brick et al [17] observed an AF reversion in 88.8% of the cases in the intraoperative period, in a study where the ultrasound was used as an energy source for atrial endocardial ablation.…”

“…Similar protocols were used for several authors [16,25]. There is no consensus about the use of postoperative antiarrhythmics and anticoagulants regarding the time and previous conditions to be withdrawal.…”

Tratamento cirúrgico de fibrilação atrial utilizando ablação com radiofrequência bipolar em doença mitral reumática

“…In our country, its feasibility, safety and efficacy have been demonstrated recently by Canale et al [6] in a heterogeneous group of patients undergoing cardiac surgery, in general, with maintenance of sinus rhythm after 1 year of 76%. Other forms of energy were studied by the authors in our country, such as unipolar radiofrequency by Breda et al [7] and Abreu Filho et al [8], showing mixed results and the use of ultrasound by Brick et al [9]. However, as far as best of our knowledge, this is the first national experience of exclusive study of patients with rheumatic mitral valve disease using a bipolar radiofrequency.…”

Avaliação inicial da ablação operatória biatrial por radiofrequência de fibrilação atrial

“…Besides, there were statistical difference between anoxia and perfusion times, with a greater time in the biatrial group. Abreu Filho et al [11] have published the outcome of ablation technique similar to that study and they have obtained a reversal rate to sinus rhythm of 72.7% in a mean follow-up of 11.7 months. In our study, there was no significant increment in operative time due to the biatril radiofrequency and we have obtained better outcome in terms of reversal and maintenance of sinus rhythm than that obtained with left atrium technique.…”