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Background
A direct indicator of effective pulmonary vein isolation (PVI) based on early ice formation is presently lacking.
Objective
The initial impedance rise within 30 to 60 seconds (sec) of single cryoablation relating to ice on the distal surface of the cryoballoon could; predict effective PVI with early termination, the need for prolonging the cryoablation, or failure to achieve effective...