escape-capture bigeminy

es·cape-·cap·ture bi·gem·i·ny

paired beats, each couplet consisting of an escape beat followed by a conducted sinus beat or an escape beat followed by a conducted ectopic beat (usually atrial with retrograde P wave).
References in periodicals archive ?
Another explanation for the arrhythmia is escape-capture bigeminy with the wide QRS being a ventricular escape complex that just happens to follow closely the first P wave of each Wenckebach period and just happens to have a delta wave in virtually every lead.