Stellate Ganglion Blockade Attenuates Electrical Storm

Outcomes from percutaneous stellate ganglion blockade (SGB), used to treat drug-refractory electrical storm from ventricular arrhythmia (VA), has not been studied long-term. This paper looked at 30 consecutive patients with drug-refractory electrical storm who underwent percutaneous SGB between 2013 and 2018. Researchers injected bupivacaine alone or combined with lidocaine in the vicinity of the left stellate ganglion or both stellate ganglia. They then collected patient characteristics, immediate- and long-term outcomes, and complications data. According ot the results, patients whose VA was controlled had lower hospital mortality rates compared to those who did not have controlled VA, and ICD interrogation shoed a 92% reduction in VA episodes within 72 hours of SGB. “SGB effectively attenuated electrical storm in more than half of patients without procedure-related complications,” the researchers concluded. “Percutaneous SGB may be considered for stabilizing ventricular rhythm in patients for whom other therapies have failed.”

Tian Y, et al. Circ Arrythm Electrophysiol. 2019;doi:10.1161/CIRCEP.118.007118