ArticleJournal of cardiovascular electrophysiology2023
Performance of two tools for pulmonary vein occlusion assessment with a novel navigation system in cryoballoon ablation procedure.
Article in Journal of cardiovascular electrophysiology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 3 citations in OpenAlex.
- Occlusion and catheter ablation using a large-size cryoballoon for various pulmonary veins: a case series.European heart journal. Case reports · 2023Article
- Performance of two tools for pulmonary vein occlusion assessment with a novel navigation system in cryoballoon ablation procedure.Journal of cardiovascular electrophysiology · 2023Article
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9 authors at 2 institutions in 1 country.
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No grant is acknowledged in the PubMed record.
Abstract
introductionOptimal occlusion of pulmonary vein (PV) is essential for atrial fibrillation (AF) cryoballoon ablation (CBA). The aim of the study was to investigate the performance of two different tools for the assessment of PV occlusion with a novel navigation system in CBA procedure.
methodsIn consecutive patients with paroxysmal AF who underwent CBA procedure with the guidance of the novel 3-dimentional mapping system, the baseline tool, injection tool and pulmonary venography were all employed to assess the degree of PV occlusion, and the corresponding cryoablation parameters were recorded.
resultsIn 23 patients (mean age 60.0 ± 13.9 years, 56.5% male), a total of 149 attempts of occlusion and 122 cryoablations in 92 PVs were performed. Using pulmonary venography as the gold standard, the overall sensitivity, specificity of the baseline tool was 96.7% (95% confidence interval [CI] 90.0%-99.1%), and 40.5% (95% CI 26.0%-56.7%), respectively, while the corresponding value of the injection tool was 69.6% (95% CI 59.7%-78.1%), and 100.0% (95% CI 90.6%-100.0%), respectively. Cryoablation with optimal occlusion showed lower nadir temperature (baseline tool: -44.3 ± 8.4°C vs. -35.1 ± 6.5°C, p < .001; injection tool: -46.7 ± 6.4°C vs. -38.3 ± 9.2°C, p < .001) and longer total thaw time (baseline tool: 53.3 ± 17.0 s vs. 38.2 ± 14.9 s, p = .003; injection tool: 58.5 ± 15.5 s vs. 41.7 ± 15.2 s, p < .001) compared with those without.
conclusionsBoth tools were able to accurately assess the degree of PV occlusion and predict the acute cryoablation effect, with the baseline tool being more sensitive and the injection tool more specific.
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