Abstract
Background
Modified cardiac sympathetic denervation (CSD) with stellate ganglion (SG) sparing is a novel technique for cardiac neuromodulation in patients with refractory ventricular tachycardia (VT).
Objectives
Our aim is to describe the mid- to long-term clinical outcome of the modified CSD with SG sparing in a series of patients with structural heart disease (SHD) and refractory VT.
Methods
All consecutive patients with SHD and refractory VT undergoing modified CSD were enrolled. Baseline clinical characteristics and periprocedural data were collected for all patients. The primary outcome was any recurrence of sustained VT.
Results
We enrolled 15 patients (age: 69.2 ± 7.9 years; male 100%) undergoing modified CSD. Left ventricular ejection fraction was 37 ± 11% and all patients had an implantable cardiac defibrillator (ICD); the underlying cardiomyopathy was non-ischemic in 73.3% of them. At least one previous ablation had been attempted in 66.6% of cases. The 73.3% of patients underwent bilateral CSD and the mean effective surgical time was 10.8 ± 2.4 min per side; no major periprocedural complication occurred. After a median follow-up time of 15 months (IQR: 8.5–24.5 months), the primary outcome occurred in 47.6% of cases. All patients experienced a reduction of ICD shocks after CSD (3.1 ICD shocks/patient before vs. 0.3 ICD shocks/patient after CSD; p-value: 0.001). Bilateral CSD and a VT cycle length < 340 ms were associated with better outcomes.
Conclusions
A modified CSD approach with stellate ganglion sparing appears to be safe, fast, and effective in the treatment of patients with SHD and refractory VTs.
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Data availability
The data underlying this article will be shared on reasonable request to the corresponding author.
Abbreviations
- ANS:
-
Autonomic nervous system
- ATP:
-
Antitachycardia pacing
- CA:
-
Catheter ablation
- COPD:
-
Chronic obstructive pulmonary disease
- CSD:
-
Cardiac sympathetic denervation
- LVEF:
-
Left ventricular ejection fraction
- ICD:
-
Implantable cardioverter defibrillator
- SG:
-
Stellate ganglion
- SGB:
-
Stellate ganglion blockade
- SHD:
-
Structural heart disease
- TEA:
-
Thoracic epidural anesthesia
- TcMS:
-
Transcranic magnetic stimulation
- VA:
-
Ventricular arrhythmia
- VF:
-
Ventricular fibrillation
- VT:
-
Ventricular tachycardia
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Cauti, F.M., Rossi, P., Bianchi, S. et al. Modified sympathicotomy in patients with refractory ventricular tachycardia and structural heart disease: a single-center experience. J Interv Card Electrophysiol (2023). https://doi.org/10.1007/s10840-023-01706-6
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DOI: https://doi.org/10.1007/s10840-023-01706-6