Welinder Annika, Feild Dirk Q, Liebman Jerome, Maynard Charles, Wagner Galen S, Wettrell Göran, Pahlm Olle
Department of Clinical Physiology, Lund University Hospital, Lund, Sweden.
Am Heart J. 2006 May;151(5):1059-64. doi: 10.1016/j.ahj.2005.05.027.
Fewer electrodes on more easily located places would facilitate electrocardiogram (ECG) recording. To investigate the possibility of simplifying ECG recording in children, we compared the diagnostic conclusions when interpreting standard versus EASI-derived 12-lead ECGs. Our hypothesis was that the variation of the interpretation of standard versus EASI-derived 12-lead ECGs was not greater than the intrareader variation of the interpretation of standard ECGs.
The study included 221 children. The 2 lead systems were recorded simultaneously. Two experienced pediatric cardiologists interpreted the ECGs. First, the reader interpreted a set of 221 ECGs with randomly allocated standard and EASI-derived 12-lead ECGs. Next, the reader interpreted the complementary ECG set without having access to the first set. Finally, the reader reinterpreted the standard ECGs from 98 children.
The variation of the interpretation of standard versus EASI-derived 12-lead ECGs was only slightly larger than the intrareader variation of the interpretation of standard ECGs.
For most of the electrocardiographic diagnoses, the conclusions from EASI-derived 12-lead ECGs were similar to those from standard ECGs. These findings support the suggestion that the EASI lead system is a potential alternative to the standard ECG in children.
在更容易定位的部位使用更少的电极将有助于心电图（ECG）记录。为了研究简化儿童心电图记录的可能性，我们比较了解读标准12导联心电图与EASI导联衍生的12导联心电图时的诊断结论。我们的假设是，标准12导联心电图与EASI导联衍生的12导联心电图解读的差异不大于标准心电图解读的阅片者内差异。
该研究纳入了221名儿童。同时记录两种导联系统。两名经验丰富的儿科心脏病专家解读心电图。首先，阅片者解读一组221份随机分配的标准12导联心电图和EASI导联衍生的12导联心电图。接下来，阅片者在无法获取第一组心电图的情况下解读补充心电图组。最后，阅片者重新解读98名儿童的标准心电图。
标准12导联心电图与EASI导联衍生的12导联心电图解读的差异仅略大于标准心电图解读的阅片者内差异。
对于大多数心电图诊断，EASI导联衍生的12导联心电图得出的结论与标准心电图相似。这些发现支持了EASI导联系统可作为儿童标准心电图潜在替代方案的建议。
