BACKGROUND: The use of cryomapping at a temperature of -30 degrees to produce reversible lesions has been reported to improve the safety of accessory pathways ablation performed close to the normal conduction system while maintaining efficacy. MATERIALS AND METHODS: We reviewed all the ablation cases in which cryothermal technology was employed in our institution. Cryoablation and cryomapping temperature settings, number and time of the applications, recorded cardiac electrograms and ablation outcomes were analyzed. RESULTS: In three of nine cases where cryoablation was used for accessory pathway ablation, cryomapping failed to identify the location of the pathway or to prevent AV block. CONCLUSIONS: We postulate that currently recommended cryomapping settings are inadequate for all accessory pathways ablation.
BACKGROUND: The use of cryomapping at a temperature of -30 degrees to produce reversible lesions has been reported to improve the safety of accessory pathways ablation performed close to the normal conduction system while maintaining efficacy. MATERIALS AND METHODS: We reviewed all the ablation cases in which cryothermal technology was employed in our institution. Cryoablation and cryomapping temperature settings, number and time of the applications, recorded cardiac electrograms and ablation outcomes were analyzed. RESULTS: In three of nine cases where cryoablation was used for accessory pathway ablation, cryomapping failed to identify the location of the pathway or to prevent AV block. CONCLUSIONS: We postulate that currently recommended cryomapping settings are inadequate for all accessory pathways ablation.
Authors: A C Skanes; M Dubuc; G J Klein; B Thibault; A D Krahn; R Yee; D Roy; P Guerra; M Talajic Journal: Circulation Date: 2000-12-05 Impact factor: 29.690
Authors: G P Kimman; M D Bogaard; N M van Hemel; P F H M van Dessel; E R Jessurun; L V A Boersma; E F D Wever; D A M J Theuns; L J Jordaens Journal: Pacing Clin Electrophysiol Date: 2005-12 Impact factor: 1.976
Authors: Peter L Friedman; Marc Dubuc; Martin S Green; Warren M Jackman; David T J Keane; Roger A Marinchak; Jose Nazari; Douglas L Packer; Allan Skanes; Jonathan S Steinberg; William G Stevenson; Patrick J Tchou; David J Wilber; Seth J Worley Journal: Heart Rhythm Date: 2004-07 Impact factor: 6.343
Authors: T S Szabo; D L Jones; G M Guiraudon; M F Rattes; D G Perkins; A D Sharma; G J Klein Journal: J Am Coll Cardiol Date: 1987-08 Impact factor: 24.094