Cryothermal catheter ablation of atrioventricular nodal reentrant tachycardia in a pediatric patient after atrioventricular canal repair.
Anatomic displacement of the atrioventricular node and associated conduction tissue in atrioventricular septal defects has been previously described. In spite of the increasing use of cryothermal catheter ablation in the pediatric population, there remains very little literature regarding its use in congenital heart disease. We describe successful cryothermal modification of the slow atrioventricular nodal pathway in a 12-year-old patient with a previously repaired partial atrioventricular septal defect and inducible atrioventricular nodal reentrant tachycardia. The use of a steerable catheter to locate the displaced His signal combined with the use of cryothermal energy allowed for the safe and effective treatment of this patient's tachycardia.
Department of Cardiology, The Children's Hospital, Aurora, CO 80045, USA. rausch.christopher@tchden.org
Christopher M
CM
Rausch
Martin
M
Runciman
Kathryn K
KK
Collins
D002036:Bundle of His / Q000503:physiopathology / Q000601:surgery; D006328:Cardiac Catheterization; D006348:Cardiac Surgical Procedures / Q000009:adverse effects*; D017115:Catheter Ablation / Q000379:methods*; D002648:Child; D003452:Cryosurgery; D022062:Electrophysiologic Techniques, Cardiac; D005260:Female; D006344:Heart Septal Defects, Atrial / Q000150:complications / Q000601:surgery*; D006345:Heart Septal Defects, Ventricular / Q000150:complications / Q000601:surgery*; D006801:Humans; D013611:Tachycardia, Atrioventricular Nodal Reentry / Q000175:diagnosis / Q000209:etiology / Q000503:physiopathology / Q000601:surgery*; D016896:Treatment Outcome