Atrial or ventricular extrasystoles are often described as skipped beats, whereas atrial fibrillation is identified as an irregularity.

房性或室性早搏常被描述为“蹦跳”，房性纤颤则被确认为不规则。

youdao

Conclusions Of the neonatal arrhythmias, premature atrial or ventricular contractions are most commonly seen and they usually require no treatment and have a good prognosis.

结论新生儿心律失常以房性早搏或窒性早搏最常见，常不需要治疗，预后良好。

youdao

Methods 35 cases with atrial septal defect or ventricular septal defect underwent intracardiac operation and CPB through small right thoracotomy incision.

方法35例房、室间隔缺损病人，经右胸小切口体外循环下心内手术。

youdao

Patients with persistent or permanent atrial fibrillation are also indicated for single chamber ventricular pacers unless efforts are being made to restore sinus rhythm.

FORBES: Overview of the New HRS/ACCF Pacemaker Guidelines

Single chamber ventricular pacing is considered an acceptable alternative in sedentary patients or those in whom technical issues make atrial lead placement difficult or impossible.

FORBES: Overview of the New HRS/ACCF Pacemaker Guidelines