Why the study?
Evaluating pulmonary vein isolation at the LAA-LSPV ridge is challenged by directional sensitivity limitations of bipolar electrograms, potentially leaving fractionated signals unvisualized with conventional catheters and causing recurrences.
Does the HD-grid multipolar mapping catheter improve the identification of fractionated signals during pulmonary vein isolation in patients with atrial fibrillation?
Population
Patients with afib undergoing pulmonary vein isolation
Comparison
Detailed interrogation with HD-grid catheter vs conventional catheters
Design
Case series
Authors
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HD-grid may reveal LAA-LSPV signals missed by conventional catheters; hypothesis-generating and should not yet change practice.
Does the HD-grid multipolar mapping catheter improve the identification of fractionated signals during pulmonary vein isolation in patients with atrial fibrillation?
The HD-grid multipolar mapping catheter enhances the detection of fractionated signals at the LAA-LSPV ridge during PVI, potentially improving ablation outcomes in atrial fibrillation.
Lakshman et al. (2023) studied this question.
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