Novel Radiofrequency Balloon Catheterã- Impact of Ablation Parameters on Single-Shot Isolation.
Circ J
; 87(7): 950-956, 2023 06 23.
Article
em En
| MEDLINE
| ID: mdl-37286488
ABSTRACT
BACKGROUND:
A novel multielectrode radiofrequency balloon (RFB) catheter has been released for pulmonary vein isolation (PVI).MethodsâandâResults:
In this observational study consecutive patients with drug-refractory paroxysmal or persistent atrial fibrillation (AF) undergoing first-time PVI were enrolled in 2 high-volume ablation centers. All procedures were conducted in conjunction with a 3D-mapping system. Clinical, procedural and ablation parameters were systematically analyzed. 105 patients (58% male; 52% paroxysmal AF, 68±11.3 years mean age, left atrial volume index 38.6±14.8 mL/m2) were included. 241/412 (58.5%) PVs were successfully isolated with a single shot (SS), with a time-to-isolation of 11.6±8 s. Total number of radiofrequency applications was 892 (mean 2.2/PV), resulting in successful isolation of 408/412 (99%) PVs at the end of the procedure. Mean electrodes' impedance drop was significantly higher in the SS-PVI compared with non-SS applications (21.5±6.6 vs. 18.6±6.5 Ohm). Concordantly, higher temperature rise was observed in the SS vs. non-SS applications (10.9±4.9â vs. 9.6±4.7â).CONCLUSIONS:
In this multicenter real-world study, mean impedance drop and temperature rise were associated with successful SS-PVI applying the novel RFB catheter. These parameters may help to guide efficient usage of the new RF balloon.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Veias Pulmonares
/
Fibrilação Atrial
/
Ablação por Cateter
Tipo de estudo:
Clinical_trials
/
Observational_studies
Limite:
Female
/
Humans
/
Male
Idioma:
En
Revista:
Circ J
Assunto da revista:
ANGIOLOGIA
/
CARDIOLOGIA
Ano de publicação:
2023
Tipo de documento:
Article