What is the clinical evidence from this study?

Study design: Other. Population: Atrial fibrillation. Intervention: Intra-Cardiac Pattern Matching algorithm (CARTO 3) vs. Manual annotation.

February 8, 2023Open Access

A novel dual-chamber reference technique to detect premature atrial complexes with non–pulmonary vein foci

KFKen’ichi FuruyaOita University DKDaiki KumazawaHeart Rhythm Society YMYosuke MizunoYokohama National University

Key Result

Using the Intra-Cardiac Pattern Matching algorithm referencing from the right atrium and coronary sinus enables automated mapping of non-pulmonary vein foci with higher differentiation accuracy.

Structured PICO

Does automated mapping using a dual-chamber reference technique improve differentiation accuracy for non-pulmonary vein foci in atrial fibrillation compared to manual annotation?

Population

Patients with atrial fibrillation requiring treatment of non-pulmonary vein foci

Intervention

Automated mapping using the Intra-Cardiac Pattern Matching algorithm (CARTO 3) referencing from 2 locations (right atrium and coronary sinus)

Comparator

Standard mapping techniques requiring manual annotation

Outcome

Differentiation accuracy of mapping non-pulmonary vein focisurrogate

A novel dual-chamber reference technique using the CARTO 3 system enables automated, highly accurate mapping of non-pulmonary vein foci in atrial fibrillation, reducing operator dependence.

Abstract

Key Teaching Points•In addition to pulmonary vein isolation, treatment of non–pulmonary vein foci is essential in the treatment of atrial fibrillation.•Various mapping techniques for non–pulmonary vein foci have been reported, but they all require manual annotation and are dependent on the competence of the operator.•By using the Intra-Cardiac Pattern Matching algorithm (CARTO 3; Biosense Webster, Diamond Bar, CA) and referencing from 2 locations, the right atrium and coronary sinus, it is possible to perform an automated mapping with higher differentiation accuracy. •In addition to pulmonary vein isolation, treatment of non–pulmonary vein foci is essential in the treatment of atrial fibrillation.•Various mapping techniques for non–pulmonary vein foci have been reported, but they all require manual annotation and are dependent on the competence of the operator.•By using the Intra-Cardiac Pattern Matching algorithm (CARTO 3; Biosense Webster, Diamond Bar, CA) and referencing from 2 locations, the right atrium and coronary sinus, it is possible to perform an automated mapping with higher differentiation accuracy.

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