[Direct cryothermal ablation eliminates conduction of the slow pathway without inducing ectopic rhythms].
Radiofrequency catheter ablation of atrioventricular nodal reentrant tachycardia is based on the elimination of conduction of slow or fast intranodal pathway. To avoid potential atrioventricular (AV) block, a new technology has been developed, cryothermal ablation. We report a case of AV nodal reentrant tachycardia in whom direct cryoablation, without previous ice mapping, was successfully performed. Interestingly and as previously described, cryotherapy did not induce ectopic rhythms, the conventional surrogate during radiofrequency ablation.
Márquez
Manlio F
MF
Departamento de Electrocardiografía y Electrofisiología, Instituto Nacional de Cardiología "Ignacio Chávez" (INCICH, Juan Badiano 1, Col. Sección XVI, Tlalpan 14080, México, DF. manliomarquez@yahoo.com
Colín
Luis
L
Iturralde
Pedro
P
Nava
Santiago
S
González
Eric
E
Rodríguez
Gerardo
G
Gómez
Jorge
J
Salica
Gabriel
G
Cossío
Jorge
J
Hermosillo
Antonio G
AG
Cárdenas
Manuel
M
D017115:Catheter Ablation; D003452:Cryosurgery / Q000379:methods*; D005260:Female; D006801:Humans; D008875:Middle Aged; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000601:surgery*