Bipolar ablation with half normal saline for deep intramural outflow tract premature ventricular contraction
| Autor: | Victor Neira, Gianluigi Bisleri, David Bakker, Damian P. Redfearn, Jason Baley, Andres Enriquez, Adrian Baranchuk |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
medicine.medical_specialty
Radiofrequency ablation medicine.medical_treatment Catheter ablation Case Report 030204 cardiovascular system & hematology Ventricular tachycardia Bipolar ablation law.invention 03 medical and health sciences 0302 clinical medicine Refractory law Internal medicine medicine Half-normal saline cardiovascular diseases 030212 general & internal medicine Interventricular septum Saline business.industry Premature ventricular contractions Ablation medicine.disease Catheter medicine.anatomical_structure cardiovascular system Cardiology Ventricular arrhythmia Cardiology and Cardiovascular Medicine business |
| Zdroj: | HeartRhythm Case Reports |
| ISSN: | 2214-0271 |
| Popis: | Radiofrequency (RF) catheter ablation is an effective therapeutic strategy for the management of ventricular arrhythmias (VAs).1, 2, 3 However, efficacy of RF ablation may be limited when the arrhythmogenic substrate is deep within the myocardium and inaccessible to the ablation catheter, as occurs with certain septal VAs. Intramural septal VAs can be found in 8% of patients with VAs and structurally normal hearts.4 Among patients with postinfarction ventricular tachycardia (VT), a critical isthmus may involve the interventricular septum in 22%, and in 11% of these the critical component is intramural.5 A variety of solutions have been proposed to overcome the challenges of intramural substrate, including needle ablation, transcoronary alcohol ablation, simultaneous unipolar ablation, and bipolar ablation. We describe a case of outflow tract premature ventricular contractions (PVCs) that had been refractory to antiarrhythmic therapy and prior ablation attempts. Successful PVC elimination was achieved with a combination of bipolar ablation and use of half normal saline (HNS) as cooling irrigant. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|