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Atrial flutter ablation with a new radiofrequency catheter
J F Santos1, L Parreira, J Madeira
1Serviço de Cardiologia do Hospital de São Bernardo, Setúbal, Portugal.
Summary
This study shows that the new Medtronic Cosio-Fluttr catheter effectively treats atrial flutter with a 100% success rate. This radiofrequency ablation simplifies the procedure, proving safe and highly effective for patients.
Area of Science:
- Cardiology
- Electrophysiology
- Medical Devices
Background:
- Typical atrial flutter is a common supraventricular tachycardia.
- Anti-arrhythmic therapy is often insufficient for symptomatic atrial flutter.
- Inferior vena cava-tricuspid annulus (IVC-TA) isthmus ablation is a key treatment strategy.
Purpose of the Study:
- To evaluate the performance of a novel radiofrequency catheter designed for IVC-TA isthmus ablation.
- To assess the safety and efficacy of this new catheter in treating atrial flutter.
Main Methods:
- Thirteen patients with symptomatic typical atrial flutter underwent IVC-TA isthmus ablation using the Medtronic Cosio-Fluttr catheter.
- Electrophysiologic studies mapped the atrial activation circuit and demonstrated entrainment.
- Radiofrequency energy was applied to the IVC-TA isthmus with temperature control.
Main Results:
- A 100% primary success rate was achieved in treating atrial flutter.
- Mean procedure and fluoroscopy times were 110 +/- 22 min and 23 +/- 4 min, respectively.
- Only one patient (8%) experienced recurrence during an 8-month follow-up, with no complications reported.
Conclusions:
- Radiofrequency ablation using the new Medtronic Cosio-Fluttr catheter is a safe and highly successful treatment for atrial flutter.
- The catheter simplifies the ablation process, reduces radiofrequency pulses, and shortens procedure times.
- This specialized catheter offers an effective alternative for IVC-TA isthmus ablation.