ventricular premature contraction

例句：

1. 1.He experienced a series of ventricular premature contractions during his cardiac arrest.
   他在心脏骤停期间经历了一系列的室性早搏。
2. 2.The patient's heart rate was elevated, and he had several ventricular premature contractions.
   患者的心率升高，出现了几次室性早搏。
3. 3.During the surgery, the doctor noticed a few ventricular premature contractions in the patient's ECG trace.
   在手术过程中，医生注意到患者心电图上有几处室性早搏。