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Significance of Abnormal and Late Ventricular Signals in Ventricular Tachycardia Ablation of Ischemic and Nonischemic Cardiomyopathies by Donah Zachariah; Kenzaburo Nakajima; Luca Rosario Limite; David Zweiker; Michael Spartalis; Davide Zirolia; Martina Musto; Giuseppe D’Angelo; Gabriele Paglino; Francesca Baratto; Manuela Cireddu; Caterina Bisceglia; Andrea Radinovic; Alessandra Marzi; Simone Sala; Giovanni Peretto; Pasquale Vergara; Simone Gulletta; Patrizio Mazzone; Paolo Della Bella; Antonio Frontera is a Medicine article available to read on EtoBox.

What is Significance of Abnormal and Late Ventricular Signals in Ventricular Tachycardia Ablation of Ischemic and Nonischemic Cardiomyopathies about?

## Background: Abnormal ventricular signals (avs) are the cornerstone of substrate-based ventricular tachycardia (vt) ablation in sinus rhythm. signal characterization of avs in ischemic and nonischemic cardiomyopathies has never been performed. ## Objective: The purpose of this study was to describe ventricular signal abnormalities in 3 different pathologies and examine their association with the diastolic component of vt circuits. ## Methods: A total of 45 patients (15 ischemic cardiomyopathy [icm], 15 arrhythmogenic cardiomyopathy [acm], 15 dilated cardiomyopathy [dcm]) who had undergone vt ablation with >50% of the diastolic pathway of the vt circuit recorded were studied. avs were classified into late potentials (lps) and continuous fractionated ventricular signals (cfvs), and their characteristics and correlation with the diastolic pathway of vt circuits were analyzed. ## Results: Seventy-five vt circuits were analyzed. bipolar scars were greatest in icm endocardially (53 cm icm vs 36 cm acm vs 25 cm dcm; p = .010) and in acm epicardially (98 cm acm vs 25 cm icm vs 24 cm dcm; p = .005). location of the vt diastolic interval coincided with avs location in 54% of vts in icm, 89

Who reads Significance of Abnormal and Late Ventricular Signals in Ventricular Tachycardia Ablation of Ischemic and Nonischemic Cardiomyopathies?

Author

Donah Zachariah; Kenzaburo Nakajima; Luca Rosario Limite; David Zweiker; Michael Spartalis; Davide Zirolia; Martina Musto; Giuseppe D’Angelo; Gabriele Paglino; Francesca Baratto; Manuela Cireddu; Caterina Bisceglia; Andrea Radinovic; Alessandra Marzi; Simone Sala; Giovanni Peretto; Pasquale Vergara; Simone Gulletta; Patrizio Mazzone; Paolo Della Bella; Antonio Frontera

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Medicine (Health Sciences)