What question did this study set out to answer?

This study aims to evaluate a midseptal approach for ablation of the slow AV nodal pathway in treating AV nodal reentrant tachycardia (AVNRT).

January 1, 1995Pacing and Clinical Electrophysiology

A Direct Midseptal Approach to Slow Atrioventricular Nodal Pathway Ablation

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Why the study?

Does selective slow pathway ablation using a midseptal approach achieve high procedural success and low recurrence in patients with inducible AVNRT?

Population

60 consecutive patients with inducible AV nodal reentrant tachycardia (AVNRT)

Design

Cohort

Follow-up

mean 20.1 +/- 0.6 months (11.5-28 months)

Authors

LELaurence M. EpsteinElectrophysiology MLMichael D. LeshElectrophysiology JGJerry C. GriffinElectrophysiology

Discussion

Member takes

Implication

Supports midseptal ablation for AVNRT; leaves open need for randomized trials on durability and generalizability.

Key Points

This study aims to evaluate a midseptal approach for ablation of the slow AV nodal pathway in treating AV nodal reentrant tachycardia (AVNRT).
60 consecutive patients with inducible AVNRT underwent selective slow pathway ablation using radiofrequency energy via a midseptal approach.
Outcome measures included procedural success rates, follow-up evaluations, and predictors of recurrence.
Successful slow pathway ablation was achieved in 59 of 60 patients (98%).
There was one case of complete AV block (1.6%) and a significant shortening of the fast pathway effective refractory period post-ablation (354 msec vs 298 msec; P = 0.008).
Recurrence rates during follow-up were 5%, with 27% in patients with residual slow pathway conduction (P = 0.002).

Structured PICO

Does selective slow pathway ablation using a midseptal approach achieve high procedural success and low recurrence in patients with inducible AVNRT?

Population

60 consecutive patients with inducible AV nodal reentrant tachycardia (AVNRT)

Intervention

Selective ablation of the slow AV nodal pathway utilizing radiofrequency (RF) energy and a midseptal approach

Outcome

Successful slow pathway ablation or modification

A direct midseptal approach for selective slow pathway ablation in AVNRT is highly successful (98%) and safe, though residual slow pathway conduction is associated with a higher rate of recurrence.

Cite This Study

Epstein et al. (1995) studied this question.

synapsesocial.com/papers/6a10d0168102eb4b66ee75cc https://doi.org/10.1111/j.1540-8159.1995.tb02476.x

Topics

AF ablation outcomes

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A Direct Midseptal Approach to Slow Atrioventricular Nodal Pathway Ablation

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Topics

A Direct Midseptal Approach to Slow Atrioventricular Nodal Pathway Ablation

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

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Topics

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