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Related Experiment Videos

Electroanatomic versus fluoroscopic mapping for catheter ablation procedures: a prospective randomized study.

Simon C Sporton1, Mark J Earley, Anthony W Nathan

  • 1Department of Cardiology, Bart's and The London NHS Trust, London, United Kingdom.

Journal of Cardiovascular Electrophysiology
|March 20, 2004
PubMed
Summary
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Electroanatomic imaging (CARTO) and conventional fluoroscopy-guided mapping offer similar catheter ablation outcomes and procedure times. CARTO significantly reduces radiation exposure and fluoroscopy time, despite higher catheter costs.

Area of Science:

  • Cardiology
  • Medical Imaging
  • Electrophysiology

Background:

  • Catheter ablation is a common treatment for cardiac arrhythmias.
  • Fluoroscopically guided activation mapping has been the standard approach.
  • Electroanatomic mapping systems offer potential advantages in visualizing cardiac structures and electrical activity.

Purpose of the Study:

  • To compare electroanatomic imaging (CARTO) with conventional fluoroscopic guidance for catheter ablation.
  • To evaluate procedure outcome, duration, radiation exposure, and cost.
  • To assess the efficacy of CARTO in an unselected patient population.

Main Methods:

  • Prospective randomized study comparing CARTO and conventional fluoroscopic guidance.
  • 102 patients undergoing catheter ablation were randomized.

Related Experiment Videos

  • Data collected included procedural success, duration, fluoroscopy time, radiation dose, and catheter usage/cost.

    • Main Results:

    • Acute procedural success rates were similar between CARTO and conventional groups (43/47 vs 51/55).
    • Procedure duration was comparable (144 [58] min vs 125 [48] min).
    • CARTO significantly reduced fluoroscopy time (9.3 [7.6] min vs 28.8 [19.5] min) and radiation dose (6.2 [6.1] Gy vs 20.8 [32.7] Gy).
    • CARTO utilized fewer catheters (2.5 [0.7] vs 4.4 [1.1]) but incurred higher catheter costs.

    Conclusions:

    • CARTO and conventional catheter ablation yield similar procedure duration and outcomes.
    • CARTO substantially decreases fluoroscopy time and radiation exposure.
    • Despite reduced catheter use, CARTO's overall catheter costs are higher than conventional methods.