Carto 3 how to#
Carto 3 software#

Each patient provided informed consent for data collection and analysis. The study was in accordance with the guiding principles of the Declaration of Helsinki written informed consent was obtained prior to the ablation procedure. All patients had structural normal heart confirmed by echocardiogram. We performed a single-center prospective observational study in 60 consecutive patients (females 61%, mean age 60.3 ± 14.7 years) who underwent catheter ablation for AVNRT between May 2020 and November 2021. The study also aimed to evaluate whether this technique may have an impact on the complexity of the procedure, on the success rate, and on the risk of complications.

Carto 3 how to#

The objective of our study was to assess, in a consecutive adult population undergoing SP ablation, how to identify SP location by activation mapping using the last CARTO 3 version, i.e., CARTO PRIME V7 (Biosense Webster, Diamond Bar, CA, USA) ( 6). Recently, non-fluoroscopic 3D mapping has been used to identify in the postero-septal region a low-voltage bridge as a new target for SP ablation, especially in children ( 5). During effective ablation, RF energy elicits junctional beats whereas cryoenergy results in non-inducibility with or without echo beats during freezing.

The slow pathway (SP), generally located in the lower one-third of the Koch triangle in the postero-septal region anterior to the ostium of the coronary sinus (CS), is targeted during ablation using either RF energy or cryoablation, with the aim of rendering the tachycardia not inducible at the end of procedure. The success rate is high (91%–99% of patients) and recurrences are seen in 5%–9%, considering both radiofrequency (RF) and cryogenic application, and AV block is a rare complication (about 1% of the patients) ( 3, 4).

The CARTO3® V7 system shows on a 3D map the latest AV node activation area during sinus rhythm allowing low fluoroscopy time and highly effective RFCA.Ītrioventricular nodal reentry tachycardia (AVNRT) is the most common supraventricular tachycardia in clinical practice ( 1), and catheter ablation is the treatment of choice for symptomatic patients ( 2) improving quality of life.

Carto 3 software#

There were no adverse event during the procedure, and no AVNRT recurrences occurred during a mean follow-up of 14.3 ± 8.3 months.Ĭonclusion: Ablation of the SP by automatic mapping using Confidense™, Coherent, and FAM DX software modules is an innovative, safe, and effective approach to AVNRT ablation. The mean number of RF applications was 3.9 ± 2, the mean ablation index was 428.6 ± 96.6, and the mean contact force was 8 ± 2.8 g. The mean procedural time was 150.3 ± 48.3 min, the mean fluoroscopy time exposure was 2.9 ± 2 min, the mean dose-area product (DAP) was 16.5 ± 2.7 cGy/cm 2. The SP was identified in all patients as the latest atrioventricular node activation area RF catheter ablation (RFCA) in that region elicited junctional beats. In 60 patients (mean age 60.3 ± 14.7, 61% females) undergoing ablation for AVNRT, an automatic activation map using a DECANAV® mapping catheter and CARTO® Confidense™, Coherent, and FAM DX software modules were obtained.

Methods and results: Right atrial septum and triangle of Koch 3D-activation map were obtained from intracardiac contact mapping during low x-ray CARTO 3® procedure. We aimed to assess a new tool to identify SP by activation mapping using the last CARTO3® version, i.e., CARTO PRIME® V7 (Biosense Webster, Diamond Bar, CA, USA) 3Biosense Webster, Johnson & Johnson Medical S.p.A., Pomezia, Italyīackground: Slow pathway (SP) ablation is the cornerstone for atrioventricular nodal reentry tachycardia (AVNRT) treatment, and a low-voltage bridge offers a good target during mapping using low x-ray exposure.1Department of Cardiology, ASST Ospedale Maggiore, Crema, Italy.Enrico Chieffo 1* Sabato D’Amore 1 Valentina De Regibus 1 Cinzia Dossena 1 Laura Frigerio 1 Erika Taravelli 2 Carolina Ferrazzano 3 Pasquale De Iuliis 3 Michele Cacucci 1 Maurizio E.