in the abnormal intrinsic heart rate group , disturbed intrinsic rhythmicity was characterized in all by a prolonged corrected intrinsic recovery time ( 2320 +/- 2740 ms [ +/- sd ] ) , arrhythmia and/or bradycardia in the secondary postpacing cycles , chaotic postextrasystolic patterns , or prolonged sinoatrial conduction times .
C0003811
arrhythmia
C0428977
bradycardia