Acute and long-term outcome of transvenous cryoablation of midseptal and parahissian accessory pathways in patients at high risk of atrioventricular block during radiofrequency ablation.

Abstract	The ability of transvenous cryothermal catheter ablation to create reversible lesions (cryomapping) and to avoid catheter dislodgment (cryoadherence) has been shown to be safe and highly effective in elimination of atrioventricular nodal reentrant tachycardia. In addition, cryoablation may be useful in the management of perinodal accessory pathways, but its efficacy and safety in patients at high risk of atrioventricular block during radiofrequency catheter ablation is unknown. This study prospectively evaluated the efficacy and safety of cryoablation in patients with midseptal and parahissian accessory pathways.
Authors	Felipe Atienza, Angel Arenal, Esteban G Torrecilla, Arcadi García-Alberola, Javier Jiménez, Mercedes Ortiz, Alberto Puchol, Jesús Almendral
Journal	The American journal of cardiology (Am J Cardiol) Vol. 93 Issue 10 Pg. 1302-5 (May 15 2004) ISSN: 0002-9149 [Print] United States
PMID	15135711 (Publication Type: Evaluation Study, Journal Article)
Topics	Adolescent Adult Catheter Ablation (adverse effects, methods) Cryosurgery (adverse effects, methods) Female Heart Block (etiology, physiopathology) Heart Septal Defects (surgery) Humans Male Middle Aged Prospective Studies Treatment Outcome

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