Safety and accuracy of the Rhythmia mapping system in pediatric patients.
Heart Rhythm
; 16(3): 388-394, 2019 03.
Article
en En
| MEDLINE
| ID: mdl-30308251
ABSTRACT
BACKGROUND:
A new mapping system (Rhythmia) using a 64 mini-electrode small basket array (Orion) was developed that enables rapid high-density mapping in a short time. However, there are few reports about the usefulness of this system in pediatric cases.OBJECTIVE:
The purpose of this study was to investigate the safety and accuracy of the Rhythmia system and Orion catheter in children.METHODS:
Catheter ablation was performed using the Rhythmia system and Orion catheter in 23 patients younger than 20 years (body weight >20 kg) without a past medical history of cardiac disease. Mapping time, number of mapping beats, and number of mapping electrodes were compared for left atrium, right atrium and right ventricular outflow tract.RESULTS:
Twenty-three maps of the right atrium were acquired in 12.6 minutes (range 8.9-15.1), consisting of 709 beats (range 492-1163) and 7132 electrograms (range 4618-10,533). Twelve maps of the left atrium were acquired in 12.1 minutes (range 9.8-14.6), consisting of 565 beats (range 446-881) and 6412 electrograms (range 4912-11,402). There were no significant difference in mapping time, accepted beats, and electrograms between the 2 chambers. Manual annotation was needed in 53 of 293,185 electrograms (0.01%) due to far-field ventricular electrogram sensing and artifact. No adverse events occurred in any of the cases.CONCLUSION:
The Orion catheter and Rhythmia mapping system were safe and accurate for mapping various arrhythmias in pediatric patients. Detailed geometry and high-resolution activation mapping were acquired without the need for manual reannotation.Palabras clave
Texto completo:
1
Base de datos:
MEDLINE
Asunto principal:
Arritmias Cardíacas
/
Ablación por Catéter
/
Mapeo del Potencial de Superficie Corporal
Tipo de estudio:
Etiology_studies
/
Incidence_studies
/
Observational_studies
/
Risk_factors_studies
Idioma:
En
Revista:
Heart Rhythm
Año:
2019
Tipo del documento:
Article