What is the clinical evidence from this study?

Study design: Case Report. Population: Atrioventricular nodal reentrant tachycardia (AVNRT) (n=1). Intervention: Sequential radiofrequency ablation. Primary outcome: Termination of tachycardia and noninducibility.

What does this research mean for the field?

Individualized sequential ablation is a successful and safe strategy for treating coexisting typical and atypical atrioventricular nodal reentrant tachycardia (AVNRT) mechanisms. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

What question did this study set out to answer?

To illustrate the successful sequential ablation of atypical fast-slow and typical slow-fast AVNRT.

July 10, 2026Open Access

Sequential radiofrequency ablation terminates coexisting atypical and typical AVNRT circuits without AV conduction compromise.

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Why the study?

Atypical fast-slow AVNRT is less frequent than typical slow-fast AVNRT and may require a more detailed electrophysiological evaluation.

Population

A 72-year-old woman with long-standing palpitations and narrow-QRS supraventricular tachycardia

Comparison

Sequential radiofrequency ablation targeting coexisting fast-slow and slow-fast AVNRT

Design

Case report

Key result

Sequential radiofrequency ablation successfully terminated coexisting atypical fast-slow and typical slow-fast AVNRT circuits, achieving noninducibility without AV conduction compromise.

Authors

LMLuis Enrique Godínez Muñoz HCHugo Elorreaga Camacho JNJorge Alberto Loza Nuno

Discussion

Member takes

Overview

Emphasizes thorough EP evaluation for atypical AVNRT presentations; leaves open optimal ablation strategies in the elderly.

Key Points

To illustrate the successful sequential ablation of atypical fast-slow and typical slow-fast AVNRT.
Case report of a 72-year-old woman with symptomatic AVNRT
Electrophysiological study with atrial and ventricular pacing
Radiofrequency ablation targeting identified circuits
Atypical fast-slow AVNRT was successfully ablated, demonstrating a cycle length of 330 ms
Subsequent induction of typical slow-fast AVNRT led to successful treatment at a second site 6 mm away
Noninducibility achieved without impacting atrioventricular conduction

Study Design

Type

Case Report (n=1)

Structured PICO

Population

A 72-year-old woman with long-standing, symptomatic palpitations despite antiarrhythmic treatment who underwent electrophysiological evaluation and ablation.

Intervention

Sequential radiofrequency ablation (first close to the coronary sinus ostium, second 6 mm from the initial site)

Outcome

Termination of tachycardia and noninducibility without atrioventricular conduction compromise

This case highlights the diagnostic and therapeutic relevance of recognizing coexisting AVNRT mechanisms and supports individualized sequential ablation.

Cite This Study

Muñoz et al. (2026) conducted a case report in Atrioventricular nodal reentrant tachycardia (AVNRT) (n=1). Sequential radiofrequency ablation was evaluated on Termination of tachycardia and noninducibility. Sequential radiofrequency ablation successfully terminated coexisting atypical fast-slow and typical slow-fast AVNRT circuits, achieving noninducibility without AV conduction compromise.

synapsesocial.com/papers/6a508f236eeac72a437a182b https://doi.org/10.5281/zenodo.21257611

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July 10, 2026Open Access

Sequential radiofrequency ablation terminates coexisting atypical and typical AVNRT circuits without AV conduction compromise.

View Full Paper

Ask AI

Bookmark

Why the study?

Atypical fast-slow AVNRT is less frequent than typical slow-fast AVNRT and may require a more detailed electrophysiological evaluation.

Population

A 72-year-old woman with long-standing palpitations and narrow-QRS supraventricular tachycardia

Comparison

Sequential radiofrequency ablation targeting coexisting fast-slow and slow-fast AVNRT

Design

Case report

Key result

Sequential radiofrequency ablation successfully terminated coexisting atypical fast-slow and typical slow-fast AVNRT circuits, achieving noninducibility without AV conduction compromise.

Authors

LMLuis Enrique Godínez Muñoz HCHugo Elorreaga Camacho JNJorge Alberto Loza Nuno

Discussion

Member takes

Overview

Emphasizes thorough EP evaluation for atypical AVNRT presentations; leaves open optimal ablation strategies in the elderly.

Key Points

To illustrate the successful sequential ablation of atypical fast-slow and typical slow-fast AVNRT.
Case report of a 72-year-old woman with symptomatic AVNRT
Electrophysiological study with atrial and ventricular pacing
Radiofrequency ablation targeting identified circuits
Atypical fast-slow AVNRT was successfully ablated, demonstrating a cycle length of 330 ms
Subsequent induction of typical slow-fast AVNRT led to successful treatment at a second site 6 mm away
Noninducibility achieved without impacting atrioventricular conduction

Study Design

Type

Case Report (n=1)

Structured PICO

Population

A 72-year-old woman with long-standing, symptomatic palpitations despite antiarrhythmic treatment who underwent electrophysiological evaluation and ablation.

Intervention

Sequential radiofrequency ablation (first close to the coronary sinus ostium, second 6 mm from the initial site)

Outcome

Termination of tachycardia and noninducibility without atrioventricular conduction compromise

This case highlights the diagnostic and therapeutic relevance of recognizing coexisting AVNRT mechanisms and supports individualized sequential ablation.

Cite This Study

synapsesocial.com/papers/6a508f236eeac72a437a182b https://doi.org/10.5281/zenodo.21257611

Also Consider

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

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