Journal of cardiovascular electrophysiology · 2013
Ablation of left-sided accessory pathways with atrial insertion away from the mitral annulus using an electroanatomical mapping system.
СтатьяНазвание и аннотация: Перевод пока не подготовлен
Обработка статьи · этапы, ошибки и управление
Загрузка состояния…
Ошибки и ограничения
История · было → стало
Состояние обновляется каждые 5 секунд, пока блок открыт. Процент показывается только там, где известен объём работы. Пауза останавливает продолжение этапа; текущий запрос к источнику может завершиться.
Long De-Yong, Dong Jian-Zeng, Sang Cai-Hua, Jiang Chen-Xi, Tang Ri-Bo, Yan Qian, Yu Rong-Hui, Li Song-Nan, Salim Mohamed, Yao Yan, Lin Tao, Ning Man, Ma Chang-Sheng
Аннотация
BACKGROUND: A left-sided accessory pathway (AP) with atrial insertion away from the mitral annulus (MA) may result in difficulty or failed ablation along the MA. We report our initial experience of ablating this rare form of AP by a 3-dimensional electroanatomical mapping system (CARTO).
METHODS: From January 2007 to August 2011, 29 patients with left-sided APs who failed previous ablations in other centers were enrolled in this study. Left atrium (LA) was reconstructed during orthodromic atrioventricuar reentry tachycardias (AVRTs) or ventricle pacing by using a 3-dimensional electroanatomical mapping system. The AP atrial insertion was defined as the earliest retrograde atrial activation and successful ablation of the AP at the site.
RESULTS: Among the 29 patients who had failed previous ablation, 7 patients were found to have atrial insertions away from the MA. Out of the 7 patients, atrial insertions were at the base of the LA appendage in 5 patients and at the anterior roof of LA in 2 patients. Ablation at the atrial insertion successfully abolished AP conduction. The mean distance between the atrial insertion sites and the MA was 24.9 ± 4.9 mm. No patients reported recovered AP conduction or recurrent tachycardias after at least 12-month follow-up.
CONCLUSIONS: Left-sided APs may have atrial insertions away from the MA. By using the CARTO system, atrial insertions can be reliably identified and ablated.
METHODS: From January 2007 to August 2011, 29 patients with left-sided APs who failed previous ablations in other centers were enrolled in this study. Left atrium (LA) was reconstructed during orthodromic atrioventricuar reentry tachycardias (AVRTs) or ventricle pacing by using a 3-dimensional electroanatomical mapping system. The AP atrial insertion was defined as the earliest retrograde atrial activation and successful ablation of the AP at the site.
RESULTS: Among the 29 patients who had failed previous ablation, 7 patients were found to have atrial insertions away from the MA. Out of the 7 patients, atrial insertions were at the base of the LA appendage in 5 patients and at the anterior roof of LA in 2 patients. Ablation at the atrial insertion successfully abolished AP conduction. The mean distance between the atrial insertion sites and the MA was 24.9 ± 4.9 mm. No patients reported recovered AP conduction or recurrent tachycardias after at least 12-month follow-up.
CONCLUSIONS: Left-sided APs may have atrial insertions away from the MA. By using the CARTO system, atrial insertions can be reliably identified and ablated.