Optimal site for atrial lead implantation in myotonic dystrophy patients: The role of Bachmann's bundle stimulation

Gerardo Nigro, Vincenzo Russo, Pasquale Vergara, Antonello D'Andrea, Grazia Di Gregorio, Luisa Politano, Giovanni Nigro, Raffaele Calabrò

Research output: Contribution to journalArticle

Abstract

Aim: The aim of this study was to identify the optimal site for atrial lead implantation in myotonic dystrophy type 1 (MD1) patients. Methods: The atrial pacing lead was positioned in the high-lateral right atrial wall (site A), then in the right atrial appendage (site B), and finally on the interatrial septum (site C) in 22 patients. Pacing and sensing thresholds were obtained for all sites. The lead was repositioned and fixed at the optimal site, defined as the location with the lowest pacing and the highest sensing thresholds. Results: Mean pacing thresholds were 1.46 ± 0.32 V at site A, 1.45 ± 0.33 V at site B, and 0.84 ± 0.24 V at site C. P-wave amplitude was 1.52 ± 0.45 mV at site A, 1.52 ± 0.49 mV at site B, and 2.60 ± 0.48 mV at site C. Atrial lead was implanted at site C in all patients without complications. Conclusions: Interatrial septum in the region of Bachmann's Bundle seems to be the optimal site for atrial lead implantation in MD1 patients.

Original languageEnglish
Pages (from-to)1463-1466
Number of pages4
JournalPACE - Pacing and Clinical Electrophysiology
Volume31
Issue number11
DOIs
Publication statusPublished - Nov 2008

Keywords

  • Arrhythmias
  • Fibrosis
  • Heart block
  • Myotonic dystrophy
  • Optimal site
  • Pacemaker
  • Pacing
  • Sensing

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

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