Trial reportBioMed research international2018
Benefit of Contact Force Sensing Catheter Technology for Successful Left Atrial Anterior Line Formation: A Prospective Randomized Trial.
Trial report in BioMed research international, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT02217657 ("Bidirectional Conduction Block of Left Atrial Anterior Line in Patients With Left Atrial Ablation - Reduction of RF Applications Using the Thermocool SmartTouch Contact Force Sensing Catheter), which is not on this map. Cited by 4 papers, 1 of them a synthesis that pooled it.
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.
"Bidirectional Conduction Block of Left Atrial Anterior Line in Patients With Left Atrial Ablation - Reduction of RF Applications Using the Thermocool SmartTouch Contact Force Sensing Catheter
Who cites it
4 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Representation of Women in Atrial Fibrillation Ablation Randomized Controlled Trials: Systematic Review.Journal of the American Heart Association · 2025Pooled it
- High-density versus low-density mapping in ablation of atypical atrial flutter.Journal of interventional cardiac electrophysiology : an international journal of arrhythmias and pacing · 2021Article
- Saturation recovery-prepared magnetic resonance angiography for assessment of left atrial and esophageal anatomy.The British journal of radiology · 2021Observational
- Catheter Ablation in Complex Atrial Arrhythmias: Pilot Study Evaluating a 3D Wide-Band Dielectric Imaging System.Frontiers in cardiovascular medicine · 2021Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
14 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
introductionThe value of contact force information for ablation of LA anterior line is unknown. In a prospective randomized clinical trial, we investigated if information on contact force during left atrial (LA) anterior line ablation reduces total radiofrequency time and results in higher rates of bidirectional line block in patients undergoing pulmonary vein isolation (PVI) plus substrate modification.
methodsWe included patients with indication for pulmonary vein isolation (PVI) and additional substrate modification. For LA anterior line ablation, patients were randomized to contact force information visible (n=35) or blinded (n=37). Patients received contrast enhanced cardiac magnetic resonance imaging (cMRI) before and 3-6 months after ablation to visualize the LA anterior line. Primary endpoint was radiofrequency time to achieve bidirectional line block. Secondary endpoints were completeness of the LA anterior line on cMRI, distribution of contact force, procedural data, adverse events, and 12 months success rate.
resultsIn 72 patients (64±9 years, 68% male), bidirectional LA anterior line block was achieved in 70 (97%) patients. Radiofrequency time to bidirectional block did not differ significantly across groups (contact force information visible 23±18min versus contact force information blinded 21±15min, p=0.50). The LA anterior line was discernable on cMRI in 40 patients (82%) without significant differences across randomization groups (p=0.46). No difference in applied contact force was found depending on cMRI line visibility. Twelve-month success and adverse event rates were comparable across groups.
conclusionInformation on contact force does not significantly improve the ablation of LA anterior lines. CLINICAL
trial registrationThe trial was registered at http://www.clinicaltrials.gov by identifier: NCT02217657.
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