RT-185
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Internal low energy
cardioversion of atrial fibrillation: patients' tolerance employing a step-up protocol
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Giuseppe Boriani, Mauro Biffi,
Gabriele Bronzetti, Francesco Pergolini, Romano Zannoli, °Gregory M. Ayers, Alessandro
Capucci, Angelo Branzi, Bruno Magnani.
Institute of Cardiology, Bologna, Italy, °In Control Inc, Redmond, WA, USA
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Abstract
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The aim of the present study was to assess efficacy,
safety and patients' tolerability of low energy internal atrial cardioversion in a group
of 19 patients, mainly with chronic persistent atrial fibrillation. Low energy internal
atrial cardioversion resulted highly effective for restoring sinus rhythm in AF patients,
with an efficacy of 95%. A wide inter-subject variability in shock-induced discomfort was
found; however, employing a step-up protocol for shock delivery, low energy cardioversion
was performed in fully conscious patients, without sedation, in around two thirds of the
patients.
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Key Words
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Atrial fibrillation – transvenous internal
cardioversion
low energy atrial defibrillation, chronic AF, ventricular proarrhythmia, inter-subject
variability in schock tolerability, step-up protocol for schock delivery, pain
torelability, OA
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