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首页> 外文期刊>PACE: Pacing and clinical electrophysiology >Mapping the organization of atrial fibrillation with basket catheters. Part II: Regional patterns in chronic patients.
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Mapping the organization of atrial fibrillation with basket catheters. Part II: Regional patterns in chronic patients.

机译：用篮式导管绘制心房颤动的组织图。第二部分：慢性患者的区域模式。

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The aim of this study was to investigate the spatial patterns of organization of fibrillation in the right atrium using bipolar recordings from a basket catheter in a population of 17 patients with persistent AF. The number of occurrences (NO) (i.e., the number of points laying on the baseline) was used as an objective measure of organization. This parameter significantly matches Wells' criteria for the classification of bipolar recordings during AF. The anatomic correspondence of the splines with eight atrial regions (namely anterior free wall, lateral free wall, posterolateral free wall, posterior free wall, posterior atrial septum, atrial septum, tricuspid valve, and anterior tricuspid valve) was assessed by fluoroscopic projections and electrogram morphology. Each region was further divided into high, mid-high, mid-low, and low segments. It was observed that individual and well-defined patterns of organization characterize the electrical activity of the right atrium in patients with persistent AF. When observed over 10 minutes, these patterns are rather stable in time. In each patient, the NO measurements were significantly different in the various right atrium regions (P < 0.0001 for all patients, Friedman test). The NO averaged over the population was significantly different among the regions (P < 0.001, Kruskal-Wallis test), owing to a common disorganized pattern observed in the tricuspid valve and anterior tricuspid valve regions. When these regions were removed from the analysis, the differences among the remaining regions were not statistically significant (P = 0.77). In conclusion, the quantitative assessment of organization in the entire right atrium showed an individual rather than common distribution. This may have implications in the choice of regions candidate for ablation.
机译：这项研究的目的是使用篮子导管中的双极记录，对17例持续性房颤患者进行调查，以研究右心房纤颤组织的空间格局。出现次数（NO）（即，放置在基线上的点数）用作组织的客观度量。此参数与AF期间Wells的双极记录分类标准非常匹配。通过荧光透视投影和电描记图评估了样条与八个心房区域（即前游离壁，外侧游离壁，后外侧游离壁，后游离壁，后房间隔，房间隔，三尖瓣和前三尖瓣）的解剖学对应关系。形态学。每个区域进一步分为高，中，高，中和低三个部分。观察到，持续性房颤患者右心房的电活动表征了个体且定义明确的组织模式。当观察10分钟以上时，这些模式在时间上相当稳定。在每位患者中，各个右心房区域的NO测量值均存在显着差异（所有患者的P <0.0001，Friedman检验）。由于在三尖瓣和前三尖瓣区域观察到常见的杂乱无章的格局，整个区域的平均NO差异显着（P <0.001，Kruskal-Wallis检验）。当将这些区域从分析中删除时，其余区域之间的差异没有统计学意义（P = 0.77）。总之，对整个右心房中组织的定量评估显示出一个个体而不是共同的分布。这可能对消融候选区域的选择产生影响。

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