Cardiac Sympathetic Denervation in Patients With Refractory Arrhythmic Storm: a Single-center Case Series

Inclusion Criteria: * patients over 18 years of age. * arrhythmic storm refractory to conventional treatment. Exclusion Criteria: * patients younger than 18 years of age. * previous history of heart transplantation. * history of previous surgical cardiac sympathetic denervation. * patients with neck anatomy considered unsuitable for the procedure (including previous neck surgery, burns, the presence of extensive scars, or large goiters with significant displacement of adjacent structures). * contraindications to the interventional technique (such as infection at the puncture site, or refusal to provide consent).