title: Effects of dispersive electrode position and surface area on electrical parameters and temperature during radiofrequency catheter ablation.
abstract: Positioning of the dispersive electrode has no significant effect during radiofrequency ablation. Doubling the surface are of the dispersive electrode results in a lower impedance, higher current delivery, and increased tip temperatures, particularly if the baseline impedance is >100 ohms. These findings may have important implications for optimizing radiofrequency energy delivery using currently available radiofrequency generators.
authors.affiliation: Department of Internal Medicine, Univerisity of Virginia School of Medicine, Charlottesville, Virginia 22908, USA.
authors.forename: S
authors.initials: S
authors.lastname: Nath
authors.forename: J P
authors.initials: JP
authors.lastname: DiMarco
authors.forename: R G
authors.initials: RG
authors.lastname: Gallop
authors.forename: I D
authors.initials: ID
authors.lastname: McRury
authors.forename: D E
authors.initials: DE
authors.lastname: Haines
mesh_terms: D006328:Cardiac Catheterization / Q000295:instrumentation; D017115:Catheter Ablation / Q000295:instrumentation* / Q000379:methods; D015331:Cohort Studies; D004553:Electric Conductivity; D017097:Electric Impedance; D004566:Electrodes; D004867:Equipment Design; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013499:Surface Properties; D013696:Temperature; D013821:Thermometers