Vol 68, No 9 (2010)
Invasive electrophysiology
Published online: 2010-09-21
Inappropriate sinus tachycardia - non-contact mapping and ablation
DOI: 10.33963/v.kp.79623
Kardiol Pol 2010;68(9):1079-1082.
Abstract
Two cases of inappropriate sinus tachycardia refractory to combined pharmacotherapy (beta-blocker, ivabradine) are described.
Both were female patients (28 and 45 years-old) and underwent sinus node modification/ablation using non-contact
mapping (EnSite Array). Since ablation had to be performed in both cases very close to the phrenic nerve (captured during
10V pacing at ablation spots) its function was monitored during ablation with constant phrenic nerve pacing from the superior
vena cava. One case was successful after single and straightforward ablation session, the other case despite several attempts
and initially good result had recurrences; first recurrence two days after cryoablation, and second three weeks after radiofrequency
ablation with irrigated tip catheter.
Kardiol Pol 2010; 68, 9: 1079-1082
Kardiol Pol 2010; 68, 9: 1079-1082
Keywords: inappropriate sinus tachycardiaablationcryoablationnon-contact mapping