METHODS: This retrospective cohort underwent ablation targeting the pulmonary vein myocardial sleeves with the use of omnipolar mapping technology and later wide area circumferential ablation (WACA) was performed.
RESULTS: The findings of this study demonstrated a few number of lesions were required to achieve all PVI targeting PVMS at 36 (95% CI 32-41) compared to WACA at 81 (95% CI 73-90). PVMS radiofrequency time was shorter at 314 s (95% CI 278-350 s) compared to 799 s (95% CI 692-906 s) for WACA. Mean procedure time to complete PVMS was 59 min (95% CI 53-65) and to complete WACA was 90 min (95% CI 80-100).
CONCLUSIONS: Precision ablation near PVMS coupled with omnipolar technology may provide a superior profile in reducing procedure time and number of ablative lesions compared to WACA in the setting of atrial fibrillation with possible similar results. Future investigation using randomized controlled trials can help further support these findings.
方法:该回顾性队列采用全极标测技术进行了针对肺静脉心肌袖的消融,随后进行了大面积圆周消融(WACA)。
结果:这项研究的结果表明,与81(95%CI73-90)的WACA相比,在36(95%CI32-41)时,实现所有PVI靶向PVMS需要少量病变。与WACA的799s(95%CI692-906s)相比,PVMS射频时间在314s(95%CI278-350s)时更短。完成PVMS的平均手术时间为59分钟(95%CI53-65),完成WACA的平均手术时间为90分钟(95%CI80-100)。
结论:在房颤情况下,与WACA相比,PVMS附近的精确消融结合全极技术可以在减少手术时间和消融病灶数量方面提供优越的优势,可能具有相似的结果。未来使用随机对照试验的调查可以帮助进一步支持这些发现。