What question did this study set out to answer?

To explore the presence and characteristics of multiple atrioventricular nodal pathways in patients with AV nodal reentrant tachycardia.

February 1, 1998Journal of Cardiovascular Electrophysiology

Multiple Atrioventricular Nodal Pathways in Humans:

Q: What does this research mean for the field?

Multiple atrioventricular (AV) nodal pathways, including triple pathway conduction, are present in approximately 9% of patients with AV nodal tachycardia and can be identified through detailed electrophysiologic mapping. Novelty: ClaimNovelty.INCREMENTAL. Consensus alignment: ConsensusAlignment.NEUTRAL.

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Why the study?

Can multiple AV nodal pathways be identified using electrophysiologic mapping in patients with AV nodal tachycardia?

Population

78 patients who underwent electrophysiologic studies for AV nodal tachycardia, with a detailed focus on 7…

Design

Cohort

Authors

KLKathy L. LeeQueen Mary Hospital HCHingson M. ChunStanford Medicine LLL. Bing LiemUniversity of California, San Francisco

Discussion

Member takes

Implication

May warrant detailed EP mapping in AV nodal tachycardia; leaves open whether detection alters ablation outcomes.

Key Points

To explore the presence and characteristics of multiple atrioventricular nodal pathways in patients with AV nodal reentrant tachycardia.
Conducted electrophysiologic studies on 78 patients with AV nodal tachycardia to assess AV nodal conduction.
Performed detailed mapping along the tricuspid annulus and analyzed atrial activation sequences.
Identified pathways based on exit locations from electrophysiological measurements.
Multiple AV nodal pathway conduction was present in 9% of patients (7/78).
Four patients demonstrated engagement of all three pathways during tachycardia.
Identified various exit positions for fast, intermediate, and slow pathways, suggesting complex conduction mechanisms.

Structured PICO

Can multiple AV nodal pathways be identified using electrophysiologic mapping in patients with AV nodal tachycardia?

Population

78 patients who underwent electrophysiologic studies for AV nodal tachycardia, with a detailed focus on 7 patients (2 males, age range 15 to 75 years) showing evidence of multiple AV nodal pathway conduction.

Intervention

Electrophysiologic studies and detailed mapping of retrograde atrial activation sequence along the tricuspid annulus.

Outcome

Presence and characteristics of multiple (triple) AV nodal pathway conduction.surrogate

Multiple AV nodal pathways (such as triple pathways) are present in approximately 9% of patients with AV nodal tachycardia and can be identified through careful electrophysiologic mapping.

Cite This Study

Lee et al. (1998) studied this question.

synapsesocial.com/papers/6a178be41723722a886ebd85 https://doi.org/10.1111/j.1540-8167.1998.tb00894.x

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Multiple Atrioventricular Nodal Pathways in Humans:

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

Multiple Atrioventricular Nodal Pathways in Humans:

Discussion

Member takes

Implication

Key Points

Structured PICO

Cite This Study

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Also Consider