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Related Experiment Videos

Five-years experience with intravascular lead extraction. U.S. Lead Extraction Database

H J Smith1, N E Fearnot, C L Byrd

  • 1MED Institute, West Lafayette, Indiana 47906.

Pacing and Clinical Electrophysiology : PACE
|November 1, 1994
PubMed
Summary

This study found that most intravascular pacing leads (86.8%) were successfully removed, with physician experience significantly improving extraction success rates and reducing complications.

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Area of Science:

  • Cardiology
  • Medical Devices
  • Interventional Procedures

Background:

  • Intravascular pacing leads are crucial for cardiac rhythm management.
  • Lead extraction is sometimes necessary due to infection, malfunction, or incompatibility.
  • Challenges in lead extraction include scar tissue formation and prior failed attempts.

Purpose of the Study:

  • To evaluate the outcomes and complications of intravascular pacing lead extraction.
  • To identify factors influencing successful lead removal.
  • To assess the impact of implant duration and physician experience on extraction success.

Main Methods:

  • A retrospective analysis of 2,195 lead extractions from 1,299 patients across 193 centers.
  • Utilized various techniques including locking stylets, dilator sheaths, snares, and retrieval baskets.

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  • Data collected on indications, implant duration, extraction approaches, and outcomes.

    • Main Results:

    • Complete lead removal was achieved in 86.8% of cases; partial removal in 7.5%; failure in 5.7%.
    • Physician experience was a critical factor: first-time operators had 12% failure, while experienced operators had only 2% failure.
    • Extraction success for previously failed attempts was 75.1% complete removal.
    • Scar tissue, increasing with implant duration, was the primary cause of extraction failure.
    • Femoral vein approach use increased with implant duration due to scarring and damage.
    • Complications occurred in 2.5% of cases, including 0.6% mortality.

    Conclusions:

    • Intravascular pacing lead extraction is feasible with high success rates, particularly with experienced operators.
    • Implant duration and associated scarring are significant challenges impacting extraction success.
    • Careful patient selection and experienced proceduralists are essential for minimizing complications.