title: Cycle length alternation during pacing.
authors.affiliation: I Cardiac Department, Jagiellonian University, College of Medicine, Cracow, Poland. mcjastrz@cyf-kr.edu.pl
authors.forename: Marek
authors.initials: M
authors.lastname: Jastrzebski
mesh_terms: D000368:Aged; D002304:Cardiac Pacing, Artificial / Q000379:methods*; D019544:Equipment Failure Analysis; D006327:Heart Block / Q000150:complications / Q000628:therapy; D006801:Humans; D008297:Male; D010138:Pacemaker, Artificial; D013610:Tachycardia / Q000209:etiology