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Related Experiment Videos

Ventricular capture by anodal pacemaker stimulation.

Eraldo Occhetta1, Miriam Bortnik, Paolo Marino

  • 1Divisione Clinicizzata di Cardiologia, Facoltà di Medicina e Chirurgia di Novara, Università degli Studi del Piemonte Orientale, Azienda Ospedaliera Maggiore della Carità, Corso Mazzini 18, 28100 Novara, Italy. occhetta@r-j.it

Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology
|April 26, 2006
PubMed
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An 86-year-old male experienced syncope due to pacemaker lead perforation. Reprogramming the pacemaker to bipolar pacing successfully restored ventricular capture, offering a non-invasive solution.

Area of Science:

  • Cardiology
  • Biomedical Engineering

Background:

  • A case study involving an 86-year-old male patient with a history of syncopal paroxysmal 2:1 atrioventricular block.
  • The patient initially had a VVI pacemaker with bipolar sensing and unipolar pacing.

Observation:

  • Recurrent syncope was noted, accompanied by a complete loss of ventricular capture despite regular ventricular sensing on ECG.
  • Fluoroscopic examination indicated potential perforation of the right ventricle by the pacemaker's screw-in lead helix.

Findings:

  • Reprogramming the pacemaker from unipolar to bipolar pacing and sensing modes restored effective ventricular capture and sensing.
  • This suggests successful anodal stimulation from the pacemaker's ring electrode.

Implications:

Related Experiment Videos

  • Pacemaker reprogramming can serve as a non-invasive method to manage lead perforation complications.
  • This highlights the importance of considering lead integrity and reprogramming options in pacemaker management.