Accuracy of Bipolar Amplitude Voltage Thresholds to Identify Late Potential Channels in Ventricular Tachycardia Ablation

2021 ◽  
Author(s):  
Ivo Roca-Luque ◽  
Fatima Zaraket ◽  
Paz Garre ◽  
Paula Sánchez-Somonte ◽  
Levio Quinto ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
Ventricular Tachycardia Ablation ◽  
Late Potential ◽  
Potential Channels

Ventricular scar channel entrances identified by new wideband cardiac magnetic resonance sequence to guide ventricular tachycardia ablation in patients with cardiac defibrillators

EP Europace ◽  
2020 ◽  
Vol 22 (4) ◽  
pp. 598-606
Author(s):  
Ivo Roca-Luque ◽  
Ana Van Breukelen ◽  
Francisco Alarcon ◽  
Paz Garre ◽  
Jose M Tolosana ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
Cardiac Magnetic Resonance ◽  
Magnetic Resonance ◽  
Standard Procedure ◽  
False Negative ◽  
False Negative Rate ◽  
Historical Cohort ◽  
Ventricular Tachycardia Ablation ◽  
Vt Ablation ◽  
Lge Cmr

Abstract Aims Ventricular tachycardia (VT) substrate-based ablation has become a standard procedure. Electroanatomical mapping (EAM) detects scar tissue heterogeneity and define conduction channels (CCs) that are the ablation target. Late gadolinium enhancement cardiac magnetic resonance (LGE-CMR) is able to depict CCs and increase ablation success. Most patients undergoing VT ablation have an implantable cardioverter-defibrillator (ICD) that can cause image artefacts in LGE-CMR. Recently wideband (WB) LGE-CMR sequence has demonstrated to decrease these artefacts. The aim of this study is to analyse accuracy of WB-LGE-CMR in identifying the CC entrances. Methods and results Thirteen consecutive ICD-patients who underwent VT ablation after WB-LGE-CMR were included. Number and location of CC entrances in three-dimensional EAM and in WB-LGE-CMR reconstruction were compared. Concordance was compared with a historical cohort matched by cardiomyopathy, scar location, and age (26 patients) with LGE-CMR prior to ICD and VT ablation. In WB-CMR group, 101 and 93 CC entrances were identified in EAM and WB-LGE-CMR, respectively. In historical cohort, 179 CC entrances were identified in both EAM and LGE-CMR. The EAM/CMR concordance was 85.1% and 92.2% in the WB and historical group, respectively (P = 0.66). There were no differences in false-positive rate (CC entrances detected in CMR and absent in EAM: 7.5% vs 7.8% in WB vs. conventional CMR, P = 0.92) nor in false-negative rate (CC entrances present in EAM not detected in CMR: 14.9% vs.7.8% in WB vs. conventional CMR, P = 0.23). Epicardial CCs was predictor of poor CMR/EAM concordance (OR 2.15, P = 0.031). Conclusion Use of WB-LGE-CMR sequence in ICD-patients allows adequate VT substrate characterization to guide VT ablation with similar accuracy than conventional LGE-CMR in patients without an ICD.

One-Year Mortality Outcomes Following Ventricular Tachycardia Ablation in Octogenarians

2013 ◽  
Vol 29 (10) ◽  
pp. S245
Author(s):  
M. Das ◽  
J. Roshan ◽  
F.Z. Khan ◽  
L. Wanounou ◽  
D. Chemello ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
Ventricular Tachycardia Ablation ◽  
One Year

scholarly journals Left anterior descending coronary artery dissection during ventricular tachycardia ablation – case report

2018 ◽  
Vol 56 (1) ◽  
pp. 63-66
Author(s):  
Kresimir Kordic ◽  
Sime Manola ◽  
Ivan Zeljkovic ◽  
Ivica Benko ◽  
Nikola Pavlovic
Keyword(s):  
Ventricular Tachycardia ◽  
Coronary Artery ◽  
Left Main Coronary Artery ◽  
Left Ventricular ◽  
Artery Dissection ◽  
Complication Rates ◽  
Left Main ◽  
Coronary Artery Dissection ◽  
Ventricular Tachycardia Ablation ◽  
First Case

Abstract Fascicular left ventricular tachycardia (VT) is the second most frequent idiopathic left VT in the setting of a structurally normal heart. Catheter ablation is curative in most patients with low complication rates. We report a case of ostial left anterior descending coronary artery (LAD) occlusion during fascicular ventricular tachycardia ablation. Dissection was the most likely cause of LAD obstruction. To the authors’ best knowledge, this is the first case reporting selective LAD dissection during electrophysiology study with no left main coronary artery (LMCA) affection.

scholarly journals Ventricular Tachycardia Ablation

2008 ◽  
Vol 1 (3) ◽  
pp. 153-161 ◽  
Author(s):  
Frédéric Sacher ◽  
Usha B. Tedrow ◽  
Michael E. Field ◽  
Jean-Marc Raymond ◽  
Bruce A. Koplan ◽  
...  
Keyword(s):  
Ventricular Tachycardia ◽  
Ventricular Tachycardia Ablation
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