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September 4, 2012Pacing and Clinical ElectrophysiologyOpen Access

Radiofrequency catheter ablation with contact force measurement significantly reduced ablation time compared to a standard catheter (39.0 vs 50.5 minutes; P=0.007).

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Why the study?

Does direct catheter force measurement reduce ablation time and procedure duration in patients with paroxysmal atrial fibrillation undergoing pulmonary vein isolation?

Population

50 consecutive patients with paroxysmal atrial fibrillation undergoing their first procedure of…

Comparison

Radiofrequency catheter ablation using a… vs Radiofrequency catheter ablation using a…

Design

Cohort

Key result

Radiofrequency catheter ablation with contact force measurement significantly reduced ablation time compared to a standard catheter (39.0 vs 50.5 minutes; P=0.007).

Authors

MMMartin MartinekCLChristine LemešESElisabeth Sigmund

Discussion

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Overview

Contact force sensing was associated with shorter ablation times; extends observational data but leaves open randomized confirmation of outcomes.

Structured PICO

Does direct catheter force measurement reduce ablation time and procedure duration in patients with paroxysmal atrial fibrillation undergoing pulmonary vein isolation?

P
Population
50 consecutive patients with paroxysmal atrial fibrillation undergoing their first pulmonary vein isolation procedure.
I
Intervention
Radiofrequency catheter ablation using a catheter with contact force measurement capabilities
C
Comparator
Radiofrequency catheter ablation using a standard 3.5-mm open-irrigated-tip catheter
O
Outcome
Acute procedural parameters (ablation time, overall procedure duration, total energy delivered, acute PV reconnections) using the endpoint of PVI with entry and exit blocksurrogate

Main Result

Absolute Event Rate: 39% vs 50.5%

p-value: p=0.007

The use of contact force sensing technology during radiofrequency catheter ablation for paroxysmal atrial fibrillation significantly reduces ablation time, total procedure duration, and total energy delivered compared to standard catheters.

Limitations

  • Procedural efficacy and safety of this new feature have to be evaluated in larger cohorts.
  • Small sample size
  • Procedural efficacy and safety need to be evaluated in larger cohorts

Cite This Study

Martinek et al. (2012) studied Paroxysmal atrial fibrillation (n=50). Radiofrequency catheter ablation with contact force measurement vs. Standard 3.5-mm open-irrigated-tip catheter was evaluated on Ablation time (radiofrequency time needed for pulmonary vein isolation) (p=0.007). Radiofrequency catheter ablation with contact force measurement significantly reduced ablation time compared to a standard catheter (39.0 vs 50.5 minutes; P=0.007).

synapsesocial.com/papers/6a71c2ff84cc45bb7be0011ehttps://doi.org/10.1111/j.1540-8159.2012.03503.x
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Optimizing Radiofrequency Ablation of Paroxysmal and Persistent Atrial Fibrillation by Direct Catheter Force Measurement—A Case‐Matched Comparison in 198 Patients2014 · 40 citations
  2. 2Impact of open-irrigated radiofrequency catheter with contact force measurement on the efficacy and safety of atrial fibrillation ablation: a single-center direct comparison2022 · 4 citations
  3. 3Catheter-tissue contact force for pulmonary veins isolation: a pilot multicentre study on effect on procedure and fluoroscopy time2013 · 58 citations
  4. 4Contact Force and Atrial Fibrillation Ablation.2015 · 17 citations
  5. 5Contact Force Assessment In Catheter Ablation Of Atrial Fibrillation.2014 · 7 citations