ventricular synchronous pacemaker

例句：

1. 1.The ventricular synchronous pacemaker is used to treat heart rhythm disorders.
   心室同步起搏器用于治疗心脏节律紊乱。
2. 2.The patient was successfully implanted with a ventricular synchronous pacemaker.
   患者成功地植入了心室同步起搏器。
3. 3.The ventricular synchronous pacemaker helps to regulate the patient's heart rate and prevent arrhythmias.
   心室同步起搏器有助于调节患者的心率，预防心律失常。