electrocardiographic monitoring

例句：

1. 1. The patient's heart rhythm was monitored during the procedure.
   在手术过程中，患者心脏的节律被监测。
2. 2. Electrocardiographic monitoring is crucial for detecting early signs of arrhythmia.
   心电图监测对于检测心律失常的早期迹象至关重要。
3. 3. During the recovery period, the patient's electrocardiographic monitoring was closely observed.
   在恢复期，患者的心电图监测被密切观察。