Introduction. Catheter ablation (CA) with pulmonary vein isolation (PVI) has become widely used in the past years for the treatment of atrial fibrillation (AF). Mitral annular plane systolic excursion (MAPSE) is the parameter that measures left ventricular longitudinal function, and it appears to be a good early marker of LV dysfunction. It is practically independent of poor image quality. The aim of our study was to analyse the role of echocardiographic variables, especially MAPSE in predicting the outcome of CA in patients with AF. Materials and Methods. We prospectively included 40 patients with paroxysmal and persistent AF that were referred for CA. All patients underwent radiofrequency CA with PVI. Standard transthoracic two-dimensional echocardiography was conducted one day after CA. Demographic data and the patients’ characteristics were noted. The endpoint of our study was to estimate the AF recurrence rate diagnosed by ECG within 6 months of the follow-up period. Results. 40 patients, mainly male (67.5%) with an average age of 61.43 ± 8.96 years were included in our study. The majority of patients had paroxysmal AF prior to ablation (77.5%). The AF recurrence rate was 20% after 6 months of follow-up. Lateral MAPSE in the AF-free group was greater than those who relapsed (1.57 ± 0.24 vs. 1.31 ± 0.25; ). Patients who remained AF-free after a 6-month follow-up period had a significantly smaller left ventricular volume index (LAVI) than those who relapsed (34.29 ± 6.91 ml/m² vs. 42.90 ± 8.43 ml/m²; ). We found a significant reverse relationship between LAVI and MAPSE (). Conclusion. MAPSE and LAVI present risk factors for AF recurrence, specifically reduced MAPSE and larger LAVI, are related to AF recurrence after CA. In the future, MAPSE could play a significant role when predicting the CA outcome in patients with AF.

中文翻译：

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二尖瓣环平面收缩压偏移 (MAPSE) 作为肺静脉隔离术后患者心房颤动复发的预测因子

简介。近年来，导管消融（CA）联合肺静脉隔离（PVI）已被广泛用于治疗心房颤动（AF）。二尖瓣环平面收缩偏移 (MAPSE) 是衡量左心室纵向功能的参数，它似乎是 LV 功能障碍的良好早期标志物。它实际上与较差的图像质量无关。我们研究的目的是分析超声心动图变量的作用，尤其是 MAPSE 在预测 AF 患者 CA 结局中的作用。材料和方法. 我们前瞻性地纳入了 40 名被转诊至 CA 的阵发性和持续性 AF 患者。所有患者均接受了 PVI 的射频 CA。CA 后一天进行标准经胸二维超声心动图检查。记录了人口统计数据和患者的特征。我们研究的终点是在随访期的 6 个月内估计心电图诊断的 AF 复发率。结果。我们的研究包括 40 名患者，主要是男性 (67.5%)，平均年龄为 61.43 ± 8.96 岁。大多数患者在消融前有阵发性房颤（77.5%）。随访 6 个月后 AF 复发率为 20%。无 AF 组的侧向 MAPSE 高于复发组（1.57 ± 0.24 vs. 1.31 ± 0.25；）。随访 6 个月后仍无 AF 的患者的左心室容积指数 (LAVI) 明显小于复发患者（34.29 ± 6.91 ml/m ²对 42.90 ± 8.43 ml/m ²；）。我们发现 LAVI 和 MAPSE 之间存在显着的反向关系（）。 结论。MAPSE 和 LAVI 是 AF 复发的危险因素，特别是 MAPSE 降低和 LAVI 较大，与 CA 后 AF 复发有关。未来，MAPSE 可能在预测 AF 患者的 CA 结局时发挥重要作用。