Key result
Direct SVC approach eliminates para-Hisian accessory pathways in ~93% of patients with lasting arrhythmia freedom.
Why the study?
Radiofrequency catheter ablation of para-Hisian accessory pathways can be challenging due to proximity to the conduction system.
Does radiofrequency catheter ablation via a direct superior vena cava approach safely and effectively eliminate para-Hisian accessory pathways in patients?
Observational (n=30)
Yes
Does radiofrequency catheter ablation via a direct superior vena cava approach safely and effectively eliminate para-Hisian accessory pathways in patients?
Catheter ablation of para-Hisian accessory pathways via a direct superior vena cava approach is highly effective and safe, offering a viable alternative for patients who failed conventional IVC approaches.
Answers are grounded in this paper and cite their sources.
May offer alternative for refractory para-Hisian APs; leaves open prospective validation versus conventional approaches.
BACKGROUND: Radiofrequency (RF) catheter ablation of para-Hisian accessory pathways (APs) can be challenging due to proximity to the conduction system. METHODS: A total of 30 consecutive patients with para-Hisian AP were enrolled for ablation in three centers, 12 (40%) of whom had previously failed attempted ablation from the inferior vena cava (IVC) approach. Ablation was preferentially performed using a superior approach from the superior vena cava (SVC) in all patients. RESULTS: The para-Hisian AP was eliminated from the SVC approach in 28 of 30 (93.3%) patients. In the remaining two patients, additional ablation from IVC was required to successfully eliminate the AP. There were two patients experienced reversible complete atrial-ventricular block and PR prolongation during the first RF application. Long-term freedom from recurrent arrhythmia was achieved in 29 (96.7%) patients over a mean follow-up duration of 15.6 ± 4.6 months. CONCLUSION: Catheter ablation of para-Hisian AP from above using a direct SVC approach is both safe and effective, and should be considered especially in patients who have failed conventional ablation attempts from IVC approach.
No takes yet. Share an insight, caveat, or question.
Chai et al. (2023) conducted an observational in Para-Hisian accessory pathways (n=30). Catheter ablation via a direct superior vena cava (SVC) approach was evaluated on Elimination of the para-Hisian AP from the SVC approach. Catheter ablation of para-Hisian accessory pathways via a direct superior vena cava approach successfully eliminated the pathway in 93.3% of patients, with 96.7% long-term freedom from arrhythmia.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: