January 1, 1996European Heart JournalOpen Access

Incidence of complete atrioventricular block following attempted radiofrequency catheter modification of the atrioventricular node in 880 patients: Results of the Multicenter European Radiofrequency Survey (MERFS)

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Why the study?

Does the target site and center experience affect the incidence of complete atrioventricular block during radiofrequency catheter modification of the AV node in patients with AVNRT?

Population

880 patients who underwent modification of the atrioventricular node to cure atrioventricular nodal…

Comparison

Radiofrequency catheter modification of the… vs Comparison between target sites and center…

Design

Cohort

Discussion

Member takes

Implication

Slow pathway ablation and experienced centers were associated with lower AV block rates; hypothesis-generating for technique optimization pending prospective validation.

Structured PICO

Does the target site and center experience affect the incidence of complete atrioventricular block during radiofrequency catheter modification of the AV node in patients with AVNRT?

Population

880 patients who underwent modification of the atrioventricular node to cure atrioventricular nodal reentrant tachycardia (AVNRT) across 69 European institutions between 1987 and 1992.

Intervention

Radiofrequency catheter modification of the atrioventricular node (fast pathway ablation, slow pathway ablation, or both).

Comparator

Comparison between target sites (fast pathway vs. slow pathway) and center experience (≤30 patients vs. >30 patients treated).

Outcome

Incidence of complete atrioventricular block.safety

Radiofrequency modification of the AV node for AVNRT carries a ~5% risk of complete AV block, which is significantly higher with fast pathway ablation and in less experienced centers.

Limitations

Retrospective design
Missing target site data in some patients (available in 684 of 880 patients)

Cite This Study

A 1996 study studied this question.

synapsesocial.com/papers/6a82007f5fe02a08f3d83cf3 https://doi.org/10.1093/oxfordjournals.eurheartj.a014696

Topics

AF ablation outcomes

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Implication

Slow pathway ablation and experienced centers were associated with lower AV block rates; hypothesis-generating for technique optimization pending prospective validation.

Incidence of complete atrioventricular block following attempted radiofrequency catheter modification of the atrioventricular node in 880 patients: Results of the Multicenter European Radiofrequency Survey (MERFS)

Discussion

Member takes

Implication

Structured PICO

Limitations

Cite This Study

Topics

Incidence of complete atrioventricular block following attempted radiofrequency catheter modification of the atrioventricular node in 880 patients: Results of the Multicenter European Radiofrequency Survey (MERFS)

Discussion

Member takes

Implication

Structured PICO

Limitations

Cite This Study

Also Consider

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