Comparison between Standard and High-Definition Multi-Electrode Mapping Catheter in Ventricular Tachycardia Ablation
A high-definition mapping catheter has been introduced, allowing for bipolar recording along and across the spline with a rapid assessment of voltage, activation, and directionality of conduction. We aimed to evaluate differences in mapping density, accuracy, time, and consequently RF time between d...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-07-01
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| Series: | Journal of Cardiovascular Development and Disease |
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| Online Access: | https://www.mdpi.com/2308-3425/9/8/232 |
| _version_ | 1827599545291243520 |
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| author | Sergio Conti Francesco Sabatino Gabriele De Blasi Giuseppe Di Stabile Giuseppe Sgarito |
| author_facet | Sergio Conti Francesco Sabatino Gabriele De Blasi Giuseppe Di Stabile Giuseppe Sgarito |
| author_sort | Sergio Conti |
| collection | DOAJ |
| description | A high-definition mapping catheter has been introduced, allowing for bipolar recording along and across the spline with a rapid assessment of voltage, activation, and directionality of conduction. We aimed to evaluate differences in mapping density, accuracy, time, and consequently RF time between different mapping catheters used for ventricular tachycardia (VT) ablation. We enrolled consecutive patients undergoing VT ablation at our center. Patients were divided into the LiveWire 2-2-2 mm catheter (group A) and the HD Grid SE (group B). Primary endpoints were total RF delivery time, the number of points acquired in sinus rhythm and VT, and the scar area. Fifty-one patients were enrolled, 22 in group A and 29 in group B. More points were acquired in the Grid group in sinus rhythm (SR) and during VT (2060.78 ± 1600.38 vs. 3278.63 ± 3214.45, <i>p</i> = 0.05; 4201.13 ± 5141.61 vs. 10,569.43 ± 13,644.94, <i>p</i> = 0.02, respectively). The scar area was smaller in group B (Bipolar area, cm<sup>2</sup> 4.52 ± 2.72 vs. 2.89 ± 2.81, <i>p</i> = 0.05. Unipolar area, cm<sup>2</sup> 7.47 ± 4.55 vs. 5.56 ± 2.79, <i>p</i> = 0.03). Radiofrequency (RF) time was shorter in the Grid group (30.52 ± 13.94 vs. 22.16 ± 11.03, <i>p</i> = 0.014). LPs and LAVAs were eliminated in overall >93% of patients. No differences were found in terms of arrhythmia-free survival at follow-up. In conclusion, the use of a high-definition mapping catheter was associated with significantly shorter mapping time during VT and RF time. Significantly more points were acquired in SR and during VT. During remap, we also observed more LAVAs and LPs requiring further ablation. |
| first_indexed | 2024-03-09T04:17:36Z |
| format | Article |
| id | doaj.art-03e0d72aed214d3db57f5498c689a10a |
| institution | Directory Open Access Journal |
| issn | 2308-3425 |
| language | English |
| last_indexed | 2024-03-09T04:17:36Z |
| publishDate | 2022-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Cardiovascular Development and Disease |
| spelling | doaj.art-03e0d72aed214d3db57f5498c689a10a2023-12-03T13:51:33ZengMDPI AGJournal of Cardiovascular Development and Disease2308-34252022-07-019823210.3390/jcdd9080232Comparison between Standard and High-Definition Multi-Electrode Mapping Catheter in Ventricular Tachycardia AblationSergio Conti0Francesco Sabatino1Gabriele De Blasi2Giuseppe Di Stabile3Giuseppe Sgarito4ARNAS Civico Hospital, 90127 Palermo, ItalyARNAS Civico Hospital, 90127 Palermo, ItalyARNAS Civico Hospital, 90127 Palermo, ItalyARNAS Civico Hospital, 90127 Palermo, ItalyARNAS Civico Hospital, 90127 Palermo, ItalyA high-definition mapping catheter has been introduced, allowing for bipolar recording along and across the spline with a rapid assessment of voltage, activation, and directionality of conduction. We aimed to evaluate differences in mapping density, accuracy, time, and consequently RF time between different mapping catheters used for ventricular tachycardia (VT) ablation. We enrolled consecutive patients undergoing VT ablation at our center. Patients were divided into the LiveWire 2-2-2 mm catheter (group A) and the HD Grid SE (group B). Primary endpoints were total RF delivery time, the number of points acquired in sinus rhythm and VT, and the scar area. Fifty-one patients were enrolled, 22 in group A and 29 in group B. More points were acquired in the Grid group in sinus rhythm (SR) and during VT (2060.78 ± 1600.38 vs. 3278.63 ± 3214.45, <i>p</i> = 0.05; 4201.13 ± 5141.61 vs. 10,569.43 ± 13,644.94, <i>p</i> = 0.02, respectively). The scar area was smaller in group B (Bipolar area, cm<sup>2</sup> 4.52 ± 2.72 vs. 2.89 ± 2.81, <i>p</i> = 0.05. Unipolar area, cm<sup>2</sup> 7.47 ± 4.55 vs. 5.56 ± 2.79, <i>p</i> = 0.03). Radiofrequency (RF) time was shorter in the Grid group (30.52 ± 13.94 vs. 22.16 ± 11.03, <i>p</i> = 0.014). LPs and LAVAs were eliminated in overall >93% of patients. No differences were found in terms of arrhythmia-free survival at follow-up. In conclusion, the use of a high-definition mapping catheter was associated with significantly shorter mapping time during VT and RF time. Significantly more points were acquired in SR and during VT. During remap, we also observed more LAVAs and LPs requiring further ablation.https://www.mdpi.com/2308-3425/9/8/232ventricular tachycardiacatheter ablationmappingmultipolar mappinglate potentialslocal abnormal ventricular activities |
| spellingShingle | Sergio Conti Francesco Sabatino Gabriele De Blasi Giuseppe Di Stabile Giuseppe Sgarito Comparison between Standard and High-Definition Multi-Electrode Mapping Catheter in Ventricular Tachycardia Ablation Journal of Cardiovascular Development and Disease ventricular tachycardia catheter ablation mapping multipolar mapping late potentials local abnormal ventricular activities |
| title | Comparison between Standard and High-Definition Multi-Electrode Mapping Catheter in Ventricular Tachycardia Ablation |
| title_full | Comparison between Standard and High-Definition Multi-Electrode Mapping Catheter in Ventricular Tachycardia Ablation |
| title_fullStr | Comparison between Standard and High-Definition Multi-Electrode Mapping Catheter in Ventricular Tachycardia Ablation |
| title_full_unstemmed | Comparison between Standard and High-Definition Multi-Electrode Mapping Catheter in Ventricular Tachycardia Ablation |
| title_short | Comparison between Standard and High-Definition Multi-Electrode Mapping Catheter in Ventricular Tachycardia Ablation |
| title_sort | comparison between standard and high definition multi electrode mapping catheter in ventricular tachycardia ablation |
| topic | ventricular tachycardia catheter ablation mapping multipolar mapping late potentials local abnormal ventricular activities |
| url | https://www.mdpi.com/2308-3425/9/8/232 |
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