Biagini A, L'Abbate A, Mazzei M G, Carpeggiani C, Testa R, Antonelli R, Michelassi C, Benassi A, Maseri A
G Ital Cardiol. 1980;10(11):1449-53.
In 10 patients with frequent anginal attacks admitted to CCU, 2-lead ECG Holter monitoring (H-M) was performed for a total of 10 days. The number of ischemic episodes detected by retrospective analysis of H-M was compared with the number detected on the basis of symptoms and continuous visual ECG monitoring in CCU (CCU-M) by highly trained staff. A total of 157 episodes was identified by H-M [82 ST elevation (ST), 15 ST depression (ST) and 60 t wave changes]. Only 15 of these episodes were detected by CCU-M (13 ST, 1 ST and 1 T wave changes) of which 12 were symptomatic. When 6 H-M ECGs were simultaneously displayed on an oscilloscope in real-time (as in CCU-M), one of the Authors was able to detect only 36% of the episodes, whereas the frequency reached 80% when the analysis was limited to one tape at the time. The results show the low reliability of the CCU-M in detecting ischemic attacks; this appears mainly related to the display of multiple tracings.
在入住冠心病监护病房（CCU）的10例频繁心绞痛发作患者中，进行了为期10天的双导联心电图动态监测（H-M）。通过对H-M进行回顾性分析检测到的缺血发作次数，与由训练有素的工作人员根据症状以及在CCU中进行的连续可视心电图监测（CCU-M）检测到的次数进行比较。通过H-M共识别出157次发作[82次ST段抬高（ST）、15次ST段压低（ST）和60次T波改变]。其中只有15次发作是通过CCU-M检测到的（13次ST段改变、1次ST段改变和1次T波改变），其中12次有症状。当将6份H-M心电图实时同时显示在示波器上（如同CCU-M那样）时，一位作者仅能检测到36%的发作，而当一次仅分析一盘磁带时，检测频率达到80%。结果显示CCU-M在检测缺血发作方面可靠性较低；这似乎主要与多条心电图记录的显示有关。
