atrioventricular rhythm

例句：

1. 1. The patient's heart rhythm was irregular, causing concern.
   患者的心跳不规律，引起了担忧。
2. 2. During the surgery, the surgeon observed the atrial rhythm of the patient.
   在手术过程中，外科医生观察到了患者的心房节律。
3. 3. Atrial fibrillation is a common type of arrhythmia that requires immediate medical attention.
   心房颤动是一种常见的心律失常，需要立即医疗关注。