Slow whole left atrial conduction velocity after pulmonary vein isolation predicts atrial

Clinical data from an observational study of 279 patients who underwent pulmonary vein isolation as an initial atrial fibrillation ablation procedure. The dataset likely contains measurements of left atrial conduction velocity on anterior and posterior routes, calculated from conduction distance and time during right atrial pacing. The research was conducted by Naoya Kurata of Kansai Rosai Hospital to investigate predictors of AF recurrence.

Use Cases

• Predicting atrial fibrillation recurrence risk based on anterior left atrial conduction velocity.
• Identifying independent predictors of ablation failure using multivariate hazard analysis.
• Correlating low-voltage areas with slower conduction velocities in the left atrium.

Strengths

• Data is based on a specific cohort of 279 patients undergoing a standardized procedure.
• Identifies a specific cut-off value (0.87 m/s) for anterior LACV with reported sensitivity (87%) and specificity (81%).
• Multivariate analysis provides an adjusted hazard ratio (11.8) for a key predictor.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic or institutional bias inherent to a single-center study.

Provenance

Source

Kansai Rosai Hospital

Collection Method

Observational study using a 20-pole multielectrode and CARTO3 system for left atrial mapping.