She underwent an uncomplicated right atrial flutter ablation. Three years later she presented with recurrent symptoms of dizziness and near syncope. Holter monitor showed pauses > 3 seconds and sinus arrest. An EP study showed prolonged sinus node recovery time, AV nodal disease and prolonged HV ...
Complete bidirectional cavo-tricuspid isthmus (CTI) block is mandatory for radio-frequency (RF) ablation of typical atrial flutter (AF). CTI block can be assessed by a simplified method using two catheters and the technique of differential pacing, but long-term results in large series are poorly...
It would not be sufficient to alter the cerebellar part of the model, because the patient with the cerebellar ablation had oscillations. Instead, the new model added to our cerebellar model a more detailed picture of the brain stem circuit (Fig. 3). Here, the brain stem circuit is divided...
Cavotricuspid isthmus (CTI) linear ablation has been established as the treatment for typical atrial flutter (AFL)1,2. Although the short-term success rate is high, we sometimes experience laborious cases with acute failure, recurrence, and prolonged procedural time3,4. The anatomy of the CTI i...
MIL ablation lesions∗ 35.2 ± 22.5 41.0 ± 19.2 0.30 Ablation time, min 25.7 ± 15.9 36.6 ± 21.3 0.03 Ablation in coronary sinus for lateral MIL — 21 (58.3) — Ablation in right atrium for septal MIL 5 (6.4) — — Catheter type 0.60 THERMOCOOL ST 57 (73.1) 23 (63.9) THERMOCOO...
Both ERPs and cSNRTs measured 15 and 30 minutes after ablation of chronic AFL were not significantly different. CONCLUSIONS: Both paroxysmal AFL and chronic AFL cause reversible electrical remodeling of the atria but demonstrate different time courses of recovery....
The trans-CTI time increased from 71.9 卤 18.1 milliseconds preablation to 166.2 卤 26.4 milliseconds postablation. Adenosine elicited resumption of conduction across the CTI in 7 patients (8.6%), 2 of whom had transient recovery. No additional patient with dormant conduction was identified by ISP...
However, few data are available on the time course of this recovery and on the monitoring of isthmus conduction at the end of the ablation procedure as a means of increasing the success rate of the procedure. Radiofrequency (RF) catheter ablation was performed in 28 men and 7 women (mean ...
An electrophysiological study performed days after the ablation procedure may show recovery of conduction across the isthmus in some patients, followed by arrhythmia recurrence. However, few data are available on the time course of this recovery and on the monitoring of isthmus conduction at the end...
sinus, respectively.31–36The most common area of ablation is in the cavotricuspid isthmus flanked by the inferior vena cava, the tricuspid valve, and the coronary sinus ostium. The effectiveness of ablation requires demonstration of “isthmus block”37,38(Figure 15-11). The success rate of ...