Mapping and ablation of RVOT-type arrhythmias: comparison between the conventional and reversed U curve methods
| Autor: | Tao Zhang, Xuejun Ren, Yunlong Wang, Zhuo Liang, Jian-Zeng Dong, Zhi-hong Han |
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| Rok vydání: | 2018 |
| Předmět: |
Adult
Male medicine.medical_treatment Catheter ablation 030204 cardiovascular system & hematology Risk Assessment Sensitivity and Specificity Ventricular Outflow Obstruction Free wall Cohort Studies Electrocardiography Young Adult 03 medical and health sciences Imaging Three-Dimensional 0302 clinical medicine Physiology (medical) medicine.artery medicine Humans 030212 general & internal medicine Retrospective Studies business.industry Body Surface Potential Mapping Middle Aged Ablation Catheter Treatment Outcome Area Under Curve Ventricular Fibrillation Pulmonary artery Catheter Ablation Female Cardiology and Cardiovascular Medicine business Nuclear medicine Follow-Up Studies |
| Zdroj: | Journal of Interventional Cardiac Electrophysiology. 52:19-30 |
| ISSN: | 1572-8595 1383-875X |
| DOI: | 10.1007/s10840-018-0365-8 |
| Popis: | We assessed conventional and reversed U curve methods for mapping and ablation of RVOT-type VAs. Single-center data were reviewed from consecutive cases of symptomatic VAs of RVOT-type origin that were mapped and ablated successfully using conventional method in RVOT (pulmonary artery might be included) from January 2014 to December 2015 (cohort 1, n = 75) or conventional method in RVOT and reversed U curve in PSC (for first ablation attempt) from January 2016 to March 2017 (cohort 2, n = 60). At least 90% of RVOT-VAs could be eliminated using conventional method in RVOT or reversed U curve in PSC. For RVOT-VAs, if the earliest activation site was in midposterior free wall, midposterior septal side of RVOT, or anterior free wall/septal side of RVOT with conventional method, it was likely eliminated in right, left, and anterior PSC with reversed U curve method, respectively. Nearly the same earliest potential in almost the same region could be recorded by both methods. Compared with conventional method, the reversed U curve method showed better catheter stability and contact force during mapping and ablation, and showed distinctive features in presystolic potential recording, unipolar mapping, and ablation response. Most of RVOT-VAs could be eliminated using conventional method in RVOT or reversed U curve in PSC. However, the reversed U curve method has superiority in catheter stability and contact force, especially for VAs form free wall of RVOT. |
| Databáze: | OpenAIRE |
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