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Decrementing evoked-potential propagation map defines the ventricular rachycardia isthmus
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Ven Gee, Lim, Osman, Faizel, Panikker, Sandeep, Yusuf, Shamil and Dhanjal, Tarvinder (2021) Decrementing evoked-potential propagation map defines the ventricular rachycardia isthmus. Journal of Innovations in Cardiac Rhythm Management, 12 (S1). pp. 51-53. doi:10.19102/icrm.2021.120119S
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Official URL: http://dx.doi.org/10.19102/icrm.2021.120119S
Abstract
We present a 65-year-old man with ischemic cardiomyopathy, prior myocardial infarction with mid-left anterior descending coronary artery occlusion, and an implantable cardioverter-defibrillator (ICD) who presented in December 2019 with ventricular tachycardia (VT) storm, receiving several ICD shocks. He was commenced on oral amiodarone; however, in February 2020, he presented with further VT and appropriate shocks. He underwent VT ablation under conscious sedation with antegrade mapping of the left ventricle (LV) using the Advisor™ HD Grid Mapping Catheter, Sensor Enabled™ combined with the steerable Agilis™ sheath. The sinus rhythm LV substrate map confirmed extensive septal and apical scar as shown in Figure 1A. Within the dense scar region (< 0.5 mV), a low-voltage conduction channel (CC) at the highlighted high-density grid position was identified (white arrow in Figure 1A). Sinus rhythm low-amplitude ventricular activities were identified at the anterior border zone (BZ) of the CC; however, as shown in Figure 1C, they were buried within the QRS complex.
| Item Type: | Journal Item | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School > Biomedical Sciences Faculty of Science, Engineering and Medicine > Medicine > Warwick Medical School |
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| Journal or Publication Title: | Journal of Innovations in Cardiac Rhythm Management | ||||
| Publisher: | Media Sphere Medical LLC | ||||
| ISSN: | 2156-3977 | ||||
| Official Date: | 2021 | ||||
| Dates: |
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| Volume: | 12 | ||||
| Number: | S1 | ||||
| Page Range: | pp. 51-53 | ||||
| DOI: | 10.19102/icrm.2021.120119S | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Free Access (unspecified licence, 'bronze OA') |
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