Key result
Regular atrial tachyarrhythmias occurred in 10% (5 of 50) of patients after hybrid ablation for persistent atrial fibrillation, with peri-mitral flutter being the most common mechanism.
Observational (n=50)
No
Regular atrial tachyarrhythmias occur in 10% of patients after hybrid ablation for persistent AF, most commonly due to peri-mitral flutter, which can be successfully treated with catheter ablation.
May indicate low post-hybrid ablation tachyarrhythmia risk; leaves open optimal lesion sets to prevent peri-mitral flutter.
Ăvod: I pĹi technicky ĂşspÄĹĄnÄ provedenĂŠ hybridnĂ ablaci ve formÄ "box-lĂŠze" zadnĂ stÄny levĂŠ sĂnÄ dochĂĄzĂ u nÄkterĂ˝ch pacientĹŻ k recidivĂĄm fibrilace sĂnĂ (FS) a/nebo pravidelnĂ˝ch sĂĹovĂ˝ch arytmiĂ (AT). CĂlem tĂŠto studie bylo popsat incidenci a typy AT vyskytujĂcĂch se po ĂşspÄĹĄnĂŠ hybridnĂ ablaci.Metodika: Do studie byli zaĹazovĂĄni pacienti po hybridnĂ ablaci pro perzistentnĂ nebo dlouhodobÄ perzistentnĂ fibrilaci sĂnĂ. U pacientĹŻ, u nichĹž doĹĄlo k vzniku AT, bylo doporuÄeno provĂŠst elektrofyziologickĂŠ vyĹĄetĹenĂ (EFV) a opakovanou ablaci. Mechanismus AT byl popsĂĄn pomocĂ aktivaÄnĂho a entrainment mapovĂĄnĂ.VĂ˝sledky: SĂĹovĂĄ arytmie se vyskytla u 5 (10 %) z 50 pacientĹŻ, u nichĹž byla provedena hybridnĂ ablace. Mechanismem AT byl u ÄtyĹ pacientĹŻ perimitrĂĄlnĂ flutter, zatĂmco u poslednĂho pacienta byl pĹĂtomen typickĂ˝ isthmus-dependentnĂ pravosĂĹovĂ˝ flutter. Po ablaci klinickĂŠ arytmie bylo moĹžno indukovat dalĹĄĂ AT a provĂŠst jejich ablaci u dvou pacientĹŻ; na konci vĂ˝konu bylo u vĹĄech pacientĹŻ dosaĹženo neinducibility jakĂŠkoli arytmie. VĹĄichni pacienti s AT byli bez detekce jakĂŠkoli dalĹĄĂ AT nebo FS bÄhem dalĹĄĂho ambulantnĂho sledovĂĄnĂ v dĂŠlce 285 ± 122 dnĂ.ZĂĄvÄr: Incidence AT u pacientĹŻ po hybridnĂm ablaÄnĂm vĂ˝konu byla 10 %, pĹiÄemĹž ve vÄtĹĄinÄ pĹĂpadĹŻ se jednalo o perimitrĂĄlnĂ flutter.
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Osmančík et al. (2017) conducted an observational in Persistent or long-standing persistent atrial fibrillation (n=50). Hybrid ablation was evaluated on Incidence of regular atrial tachyarrhythmias (AT) after hybrid ablation. Regular atrial tachyarrhythmias occurred in 10% (5 of 50) of patients after hybrid ablation for persistent atrial fibrillation, with peri-mitral flutter being the most common mechanism.
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