Novel visualization of intracardiac pacing lead extractions: Methodologies performed within isolated canine hearts

Charles J. Love, Sarah E. Ahlberg, Prasanga Hiniduma-Lokuge, Scott Brabec, Paul A. Iaizzo

Research output: Contribution to journalArticle

Abstract

Several methodologies are typically employed to extract chronically-implanted pacing leads including: laser catheter systems, radio frequency catheters, mechanical cutting catheters, and/or direct traction. In the present study, Visible Heart® methodologies were employed to obtain novel internal and external views of such extractions. Utilizing standard cardioplegia procedures, canine hearts (n∈=∈3) with chronically-implanted endocardial pacing leads were explanted to a unique isolated heart apparatus. Modified Krebs-Henseleit buffer allowed for clear endocardial imaging with endoscopic video cameras inserted into the cardiac chambers. Leads were extracted using: (1) laser system with sheath; (2) dissection sheath with incorporated bipolar tungsten electrode; (3) non-powered mechanical sheath; or (4) direct traction. Resultant images provide a novel perspective regarding lead extraction methodologies and the imposed force on an encapsulated lead and on the great vessels and/or heart itself; this understanding may improve the outcome and safety of future lead extractions.

Original languageEnglish (US)
Pages (from-to)27-31
Number of pages5
JournalJournal of Interventional Cardiac Electrophysiology
Volume24
Issue number1
DOIs
StatePublished - Jan 1 2009
Externally publishedYes

Keywords

  • Encapsulation
  • Imaging
  • Laser system
  • Lead extraction
  • RF cutting

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine
  • Physiology (medical)

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