Peter Spector, M.D.; Nicole Habel, M.D. With H and V-capture there is a combination of these findings. Local V activation is early, QRS onset is early, and QRS end is also early. The QRS duration is ...

An almost simultaneous activation of the biatrial paraseptal region and diffuse area of initial activation in each of the atria are included as the distinctive initial activation patterns of ...

xx This tracing is an example of a common reality of para-Hisian pacing; sometimes we do not actually record a His potential. We can none the less deduce whether or not we are capturing His (as ...