Schnittger I, Rodriguez I M, Winkle R A
Am J Cardiol. 1986 Mar 1;57(8):604-7. doi: 10.1016/0002-9149(86)90843-x.
This study evaluates the clinical use of an easily swallowed bipolar electrode for recording an esophageal electrocardiogram (ECG). Fourteen patients were selected for bedside diagnosis (ECG group) because of arrhythmias difficult to evaluate using a standard 12-lead ECG. A second group of 27 non-selected patients scheduled for routine 24-hour ambulatory electrocardiographic recordings (ambulatory ECG group) had an esophageal ECG recorded as the "third channel." All 14 patients (100%) in the ECG group had excellent-quality tracings, and the esophageal ECG was diagnostic in 12 cases (86%). Of 27 patients in the ambulatory ECG group, 19 (70%) had fairly good to excellent-quality 24-hour esophageal pill tracings, with the esophageal ECG contributing to correct arrhythmia diagnosis in 11 patients (41%). It is concluded that this easily swallowed esophageal electrode provides an excellent-quality short-term ECG and often permits proper arrhythmia diagnosis in selected patients with arrhythmias. Good-quality 24-hour esophageal ambulatory electrocardiographic recordings can also be obtained that contribute to arrhythmia diagnosis in a limited number of unselected patients, and should be even more clinically useful in carefully selected patients.
本研究评估了一种易于吞咽的双极电极用于记录食管心电图（ECG）的临床应用。因心律失常难以通过标准12导联心电图评估，14例患者被选作床旁诊断（心电图组）。另一组27例未被筛选的患者计划进行常规24小时动态心电图记录（动态心电图组），其食管心电图作为“第三通道”被记录。心电图组的所有14例患者（100%）均获得了高质量的描记图，食管心电图在12例患者中具有诊断价值（86%）。动态心电图组的27例患者中，19例（70%）获得了质量相当好至极好的24小时食管药丸式描记图，食管心电图在11例患者（41%）中有助于心律失常的正确诊断。结论是，这种易于吞咽的食管电极可提供高质量的短期心电图，并且在选定的心律失常患者中常能实现心律失常的正确诊断。还可获得高质量的24小时食管动态心电图记录，这在有限数量的未被筛选患者中有助于心律失常的诊断，并且在经过仔细选择的患者中临床应用价值更大。
