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首页> 外文期刊>The American Journal of Cardiology >Comparison of antero-lateral versus antero-posterior electrode position for biphasic external cardioversion of atrial flutter.
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Comparison of antero-lateral versus antero-posterior electrode position for biphasic external cardioversion of atrial flutter.

机译：房扑双相体外电复律的前外侧和前后电极位置比较。

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摘要

External cardioversion is an established and very important tool to terminate symptomatic atrial flutter. The superiority of the biphasic waveform has been demonstrated for atrial flutter, but whether electrode position affects the efficacy of cardioversion in this population is not known. The aim of this trial was to evaluate whether anterior-lateral (A-L) compared with anterior-posterior (A-P) electrode position improves cardioversion results. Of 130 screened patients, 96 (72 men, mean age 62 +/- 12 years) were included and randomly assigned to a cardioversion protocol with either A-L or A-P electrode position. In each group, 48 patients received sequential biphasic waveform shocks using a step-up protocol consisting of 50, 75, 100, 150, or 200 J. The mean energy (65 +/- 13 J for A-L vs 77 +/- 13 J for A-P, p = 0.001) and mean number of shocks (1.48 +/- 1.01 for A-L vs 1.96 +/- 1.00 for A-P, p = 0.001) required for successful cardioversion were significantly lower in the A-L group. The efficacy of the first shock with 50 J in the A-L electrode position (35 of 48 patients [73%]) was also highly significantly greater than the first shock with 50 J in the A-P electrode position (18 of 48 patients [36%]) (p = 0.001). In conclusion, the A-L electrode position increases efficacy and requires fewer energy and shocks in external electrical cardioversion of common atrial flutter. Therefore, A-L electrode positioning should be recommended for the external cardioversion of common atrial flutter.
机译：外部心脏复律是终止症状性心房扑动的既定且非常重要的工具。已经证明了双相波形对于心房扑动的优越性，但是电极位置是否会影响该人群中心脏复律的功效尚不清楚。该试验的目的是评估与前（A-P）电极位置相比，前-外侧（A-L）电极能否改善心脏复律结果。在130名接受筛选的患者中，包括96名（72名男性，平均年龄62 +/- 12岁），并随机分配至具有A-L或A-P电极位置的心脏复律方案。在每组中，有48位患者使用由50、75、100、150或200 J组成的升压方案接受了连续的双相波形电击。平均能量（AL的平均能量为65 +/- 13 J，77 +/- 13 J AP组成功进行心脏复律所需的电击次数（p = 0.001）和平均电击次数（AL组为1.48 +/- 1.01，AP组为1.96 +/- 1.00，p = 0.001）在AL组中明显较低。 AL电极位置首次电击50 J的疗效（48例中的35例[73％]）也显着高于AP电极位置首次电击50 J的效果（48例中的18例[36％]） ）（p = 0.001）。总之，A-L电极位置可提高功效，并且在普通心房扑动的外部电复律中所需的能量和冲击更少。因此，应推荐将A-L电极放置在常见心房扑动的外部心脏复律中。

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