Ventricular arrhythmias originating from the basal septum of the ventricle: Clinical and electrophysiological characteristics and a systematic ablation approach
BackgroundThere is a paucity of data about VAs clustered at the vicinity of the basal septum of the ventricle. We aimed to report and characterize the clinical and electrophysiological features of basal septum VAs and explore the systematic ablation approach.MethodsA consecutive series of 51 patient...
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| Format: | Article |
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Frontiers Media S.A.
2022-11-01
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| Series: | Frontiers in Cardiovascular Medicine |
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| Online Access: | https://www.frontiersin.org/articles/10.3389/fcvm.2022.879381/full |
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| author | Linsheng Shi Linsheng Shi Cheng Wang Hongwu Chen Gang Yang Kai Gu Mingfang Li Ming Chu Hailei Liu Zidun Wang Weizhu Ju Minglong Chen |
| author_facet | Linsheng Shi Linsheng Shi Cheng Wang Hongwu Chen Gang Yang Kai Gu Mingfang Li Ming Chu Hailei Liu Zidun Wang Weizhu Ju Minglong Chen |
| author_sort | Linsheng Shi |
| collection | DOAJ |
| description | BackgroundThere is a paucity of data about VAs clustered at the vicinity of the basal septum of the ventricle. We aimed to report and characterize the clinical and electrophysiological features of basal septum VAs and explore the systematic ablation approach.MethodsA consecutive series of 51 patients who had their VAs successfully ablated at the basal septum of the ventricle was enrolled in this study. The basal septum was defined as the area 2 cm away from the septal annulus, the upper boundary was the site of the left or right His-Purkinje system, and the lower boundary was the borderline that separated away from the septum. RFCA was performed based on detailed activation mapping or pace mapping. Patients who underwent VA ablation from other areas of the tricuspid annulus (TA) and mitral annulus (MA) during the same period were enrolled as the control group.ResultsThe patients with basal septum VAs were significantly older (p < 0.01) and had more comorbidities (hypertension and coronary artery disease) (p < 0.01). Meanwhile, the precordial R wave transition was significantly different in right side, left side and intramural foci group (p < 0.001). Acute procedural success was achieved in 44 patients (86.3%) in the study group and in 63 patients (95.5%) in the control group. After a median of 12 (6–36) months of follow-up, compared with VA recurrence in the control group (2 cases), 11 patients with basal septum VAs had recurrences (p = 0.002), while a delayed cure was observed in 3 in intramural foci group.ConclusionBased on the unique anatomical and electrophysiological characteristics, a systematic approach for VAs originating from the basal septal area is warranted. Moreover, the follow-up data seemed to show a relative high recurrence rate for basal septal VAs during a period of time. |
| first_indexed | 2024-04-12T07:28:27Z |
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| id | doaj.art-a866d6cafaec4a67af43b5603fed4b9f |
| institution | Directory Open Access Journal |
| issn | 2297-055X |
| language | English |
| last_indexed | 2024-04-12T07:28:27Z |
| publishDate | 2022-11-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Cardiovascular Medicine |
| spelling | doaj.art-a866d6cafaec4a67af43b5603fed4b9f2022-12-22T03:42:08ZengFrontiers Media S.A.Frontiers in Cardiovascular Medicine2297-055X2022-11-01910.3389/fcvm.2022.879381879381Ventricular arrhythmias originating from the basal septum of the ventricle: Clinical and electrophysiological characteristics and a systematic ablation approachLinsheng Shi0Linsheng Shi1Cheng Wang2Hongwu Chen3Gang Yang4Kai Gu5Mingfang Li6Ming Chu7Hailei Liu8Zidun Wang9Weizhu Ju10Minglong Chen11Department of Cardiology, The Second Affiliated Hospital of Nantong University, Nantong, ChinaNantong School of Clinical Medicine, Kangda College of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, ChinaBackgroundThere is a paucity of data about VAs clustered at the vicinity of the basal septum of the ventricle. We aimed to report and characterize the clinical and electrophysiological features of basal septum VAs and explore the systematic ablation approach.MethodsA consecutive series of 51 patients who had their VAs successfully ablated at the basal septum of the ventricle was enrolled in this study. The basal septum was defined as the area 2 cm away from the septal annulus, the upper boundary was the site of the left or right His-Purkinje system, and the lower boundary was the borderline that separated away from the septum. RFCA was performed based on detailed activation mapping or pace mapping. Patients who underwent VA ablation from other areas of the tricuspid annulus (TA) and mitral annulus (MA) during the same period were enrolled as the control group.ResultsThe patients with basal septum VAs were significantly older (p < 0.01) and had more comorbidities (hypertension and coronary artery disease) (p < 0.01). Meanwhile, the precordial R wave transition was significantly different in right side, left side and intramural foci group (p < 0.001). Acute procedural success was achieved in 44 patients (86.3%) in the study group and in 63 patients (95.5%) in the control group. After a median of 12 (6–36) months of follow-up, compared with VA recurrence in the control group (2 cases), 11 patients with basal septum VAs had recurrences (p = 0.002), while a delayed cure was observed in 3 in intramural foci group.ConclusionBased on the unique anatomical and electrophysiological characteristics, a systematic approach for VAs originating from the basal septal area is warranted. Moreover, the follow-up data seemed to show a relative high recurrence rate for basal septal VAs during a period of time.https://www.frontiersin.org/articles/10.3389/fcvm.2022.879381/fullbasal septumventricular arrhythmiascatheter ablationanatomyelectroanatomic mapping |
| spellingShingle | Linsheng Shi Linsheng Shi Cheng Wang Hongwu Chen Gang Yang Kai Gu Mingfang Li Ming Chu Hailei Liu Zidun Wang Weizhu Ju Minglong Chen Ventricular arrhythmias originating from the basal septum of the ventricle: Clinical and electrophysiological characteristics and a systematic ablation approach Frontiers in Cardiovascular Medicine basal septum ventricular arrhythmias catheter ablation anatomy electroanatomic mapping |
| title | Ventricular arrhythmias originating from the basal septum of the ventricle: Clinical and electrophysiological characteristics and a systematic ablation approach |
| title_full | Ventricular arrhythmias originating from the basal septum of the ventricle: Clinical and electrophysiological characteristics and a systematic ablation approach |
| title_fullStr | Ventricular arrhythmias originating from the basal septum of the ventricle: Clinical and electrophysiological characteristics and a systematic ablation approach |
| title_full_unstemmed | Ventricular arrhythmias originating from the basal septum of the ventricle: Clinical and electrophysiological characteristics and a systematic ablation approach |
| title_short | Ventricular arrhythmias originating from the basal septum of the ventricle: Clinical and electrophysiological characteristics and a systematic ablation approach |
| title_sort | ventricular arrhythmias originating from the basal septum of the ventricle clinical and electrophysiological characteristics and a systematic ablation approach |
| topic | basal septum ventricular arrhythmias catheter ablation anatomy electroanatomic mapping |
| url | https://www.frontiersin.org/articles/10.3389/fcvm.2022.879381/full |
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