Kleiman J H, Winkle R A
Med Instrum. 1977 Sep-Oct;11(5):293-5.
Sustained periods of extremely rapid or slow heart rate or initiation of the heartbeat from an ectopic focus can lead to serious clinical impairment or even death. Because disturbances of cardiac rhythm are ofter intermittent and evanescent, the development of systems for recording electrocardiograms in ambulatory patients for later analysis has been of clinical utility in diverse forms of heart disease. The basic components of such systems include a compact portable tape recorder for recording electrocardiographic data and a playback system with facilities for data analysis. Recently, semi-automated, computer-assisted analysis of this electrocardiographic data and quantitative analysis of the frequency of abnormal rhythms have become possible. In addition to widespread application for diagnostic purposes, ambulatory electrocardiographic techniques are now being used to evaluate new drugs for the treatment of cardiac rhythm disturbances and to define subsets of cardiac patients in whom treatment of rhythm disturbances may be desirable.
持续的极快或极慢心率期，或异位起搏点引发心跳，可导致严重的临床损害甚至死亡。由于心律失常常常是间歇性且短暂的，因此开发用于记录门诊患者心电图以供后续分析的系统，在各种心脏病中都具有临床实用价值。此类系统的基本组成部分包括用于记录心电图数据的紧凑型便携式磁带录音机以及具备数据分析功能的回放系统。近来，对这些心电图数据进行半自动、计算机辅助分析以及对异常心律频率进行定量分析已成为可能。除了广泛应用于诊断目的外，动态心电图技术目前还被用于评估治疗心律失常的新药，并确定可能需要治疗心律失常的心脏病患者亚组。
