Double ventricular pacing in a patient with a "DDD" universal pacemaker.

@article{Nathan1984DoubleVP,
  title={Double ventricular pacing in a patient with a "DDD" universal pacemaker.},
  author={Anthony W. Nathan and A. John Camm},
  journal={Pacing and clinical electrophysiology : PACE},
  year={1984},
  volume={7 3 Pt 1},
  pages={432-5}
}
A patient with a DDD universal pacemaker presented with dyspnea. The electrocardiogram showed pacing artifacts both at the start of the QRS complex and 110 ms later. Also, 400 ms following sensed ventricular extrasystoles, there were normal single paced QRS complexes of slightly different morphology. An x-ray showed that the atrial electrode had displaced… CONTINUE READING