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The Question Is Not "Paroxysmal or Persistent?" But "PV-Dependent or Non-PV Dependent?".
J Cardiovasc Electrophysiol
January 2025
Department of Cardiology, Ibaraki Prefectural Central Hospital, Kasama, Japan.
Ultra High-Density Mapping and Ablation of Localized Micro-Reentrant Tachycardias: Insight From the CHARISMA Registry.
J Cardiovasc Electrophysiol
January 2025
Cardiology department, "S. Maria dei Battuti" Hospital, Via Brigata Bisagno, Conegliano (TV), Italy.
Background: Recent advancements in ultra-high-density mapping (UHDM) featuring automated functionalities have enhanced our understanding of micro-reentrant atrial tachycardias (mAT) circuits and the precise localization of the origin.
Purpose: To evaluate the diagnostic support provided by an automated UHDM algorithm in guiding the ablation of mATs.
Methods: Consecutive patients eligible for AT ablation in 22 Italian centers were prospectively enrolled.
Ablation of Premature Ventricular Contractions With Prepotentials Mapped Inside Coronary Cusps: When to Go Infra-Valvular?
J Cardiovasc Electrophysiol
January 2025
Division of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
Background: Discrete prepotentials (DPPs) mapped inside aortic sinuses of Valsalva (ASVs) are deemed as reliable targets for ablation of premature ventricular contractions (PVCs). Nevertheless, ablation may still fail, necessitating further investigation. This study aimed to investigate the electrophysiological features and ablation approaches for PVCs with failed ablation inside ASVs, despite identified DPPs.
View Article and Find Full Text PDFImpact of Imaging and Pharmacological Treatment Strategies in Refractory Ventricular Tachycardia in Critically Ill Patients: A Systematic Review.
Cureus
December 2024
Medicine, Universidad Santiago de Cali, Cali, COL.
Ventricular tachycardia (VT) is a life-threatening arrhythmia often leading to sudden cardiac death, particularly in critically ill patients. Refractory VT, characterized by recurrent episodes requiring intervention, poses unique challenges for management, necessitating advanced diagnostic and therapeutic strategies. This systematic review evaluates the impact of imaging and pharmacological treatments in managing refractory VT in critically ill patients.
View Article and Find Full Text PDFUltra-High-Density Catheter Ablation of Purkinje Premature Ventricular Contractions Causing Electrical Storm.
JACC Case Rep
January 2025
Hospital Clínico Universitario Lozano Blesa, Zaragoza, Spain.
The postacute myocardial infarction electrical storm is a life-threatening entity. Resistance to ischemia in Purkinje fibers may be the origin of short-coupled premature ventricular contractions that trigger severe arrhythmic events. We present a case where the use of emergency catheter ablation, guided by a 3D navigation system and an ultra-high-density mapping catheter, successfully terminated the arrhythmic storm.
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