Clinical and Electrophysiological Characteristics of Ventricular Tachycardias From the Basal Septum in Structural Heart Disease

Kotake, Yojiro; Campbell, Timothy; Bennett, Richard G.; Turnbull, Samual; Huang, Kaimin; Ross, Neil; Trivic, Ivana; Silva, Kasun De; Bhaskaran, Ashwin; Kumar, Saurabh

doi:10.1016/j.jacep.2021.06.001

Cited by 5 publications

(2 citation statements)

References 24 publications

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“…This clustering feature makes it possible to estimate the exact locations before intracardiac mapping, consequently allowing preprocedure planning and potentially facilitating mapping and ablation. Till now, a relatively large data of VAs clustered at the vicinity of the basal septum of the ventricle are still limited ( 6 – 8 ). In the present study, we report a group of VAs clustered in the vicinity of the basal septum.…”

Section: Introductionmentioning

confidence: 99%

Ventricular arrhythmias originating from the basal septum of the ventricle: Clinical and electrophysiological characteristics and a systematic ablation approach

Shi

Wang

Chen

et al. 2022

Front. Cardiovasc. Med.

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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.

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Section: Introductionmentioning

confidence: 99%

Ventricular arrhythmias originating from the basal septum of the ventricle: Clinical and electrophysiological characteristics and a systematic ablation approach

Shi

Wang

Chen

et al. 2022

Front. Cardiovasc. Med.

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“…Patient #4 had a substrate (mid-myocardial scar) where ablation results are not very promising and much less in unstable ES patients. 11 Patient #5 did not consent to undergo ablation. Patient #6 had frequent episodes of VF, each triggered by a ventricular ectopy and when ES subsided with SGA, the monomorphic ectopy could be ablated.…”

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confidence: 99%

Stellate ganglion ablation by conventional radiofrequency in patients with electrical storm

Rao,

Lokre,

Patnala

et al. 2023

Europace

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Aims We report a series of patients with Electrical Storm (ES) who underwent bilateral stellate ganglion ablation by using conventional radio frequency (RFA). Methods and results The procedure was done with fluoroscopic guidance using the COSMAN™ 1A RF Generator and a 22G RF needle (5 cm length and 5 mm active tip). Six patients, four male and two female (mean age 55 ± 7 years and mean LVEF—42 ± 21%) with ES underwent the procedure under fluoroscopic guidance. All patients experienced recurrent ICD shocks or required multiple external defibrillation shocks. There were no procedural complications. All patients survived free of ES at discharge. At a mean follow—up of 22 ± 8months, all were alive free of ES but two patients received appropriate shocks for VT and one patient had VT terminated by ATP. Conclusion This small series of cases is a proof of concept that neuromodulation by conventional RFA targeting bilateral stellate ganglia appears safe, feasible, and effective in treating selected unstable patients with ES.

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Usefulness of Apple Watch Electrocardiograms for Identifying the Origin of Premature Ventricular Contractions

Kato,

Kawatani,

Tomomori

et al. 2024

Circ J

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Clinical and Electrophysiological Characteristics of Ventricular Tachycardias From the Basal Septum in Structural Heart Disease

Cited by 5 publications

References 24 publications

Ventricular arrhythmias originating from the basal septum of the ventricle: Clinical and electrophysiological characteristics and a systematic ablation approach

Ventricular arrhythmias originating from the basal septum of the ventricle: Clinical and electrophysiological characteristics and a systematic ablation approach

Stellate ganglion ablation by conventional radiofrequency in patients with electrical storm

Usefulness of Apple Watch Electrocardiograms for Identifying the Origin of Premature Ventricular Contractions

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