ArticleJournal of arrhythmia2026
Ablation of Ventricular Tachycardia Using the QDOT MICRO Ablation Catheter (VT-MICRO Study).
Article in Journal of arrhythmia, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed.
- Ablation of Ventricular Tachycardia Using the QDOT MICRO Ablation Catheter (VT-MICRO Study).Journal of arrhythmia · 2026Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Background: Catheter ablation is useful to treat patients with scar-related heart disease and ventricular tachycardia (VT). QDOT Micro catheter is a next generation catheter. Its optimized temperature control and micro-electrode technology are designed to provide more efficient and consistent lesion creation with an accurate myocardial substrate analysis. This study aims to compare the myocardial electro-anatomic maps obtained using QDOT and Pentaray (PR) catheters. Method: This study enrolled patients with symptomatic VT and indication to perform CA following the latest guidelines. Myocardial electro-anatomic maps were obtained using QDOT and Pentaray (PR) catheters. The primary objective was to assess the absence of sustained VTs or ICD interventions 12 months after the procedure. Results: Twelve patients were enrolled. The percentage of myocardial scar was higher using QDOTB map (15.5%) compared to PR (13.5%) and QDOTM-map (9%) (< 0.001). The percentage of myocardial borderzone was higher using QDOTB map (7.5%) compared to PR (6%) and QDOTM-map (3%) ( Conclusion: Microelectrode mapping allows detection of higher voltage electrograms compared to standard bipolar mapping and PR mapping. In our small population, the HPSD protocol was used inside the low voltage areas without acute procedural complications.
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