title: Macroreentry within the His-Purkinje system initiated by atrial premature complex.
mesh_terms: D002036:Bundle of His / Q000503:physiopathology*; D002037:Bundle-Branch Block / Q000503:physiopathology*; D002304:Cardiac Pacing, Artificial; D004558:Electric Stimulation; D006325:Heart Atria / Q000503:physiopathology; D006329:Heart Conduction System / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011690:Purkinje Fibers / Q000503:physiopathology*