Acute outcome of treating patients admitted with electrical storm in a tertiary care centre

Electrical storm (ES) is a life threatening emergency. There is little data available regarding acute outcome of ES. The study aimed to analyze the acute outcome of ES, various treatment modalities used, and the factors associated with mortality. This is a retrospective observational study involving patients admitted with ES at our centre between 1/1/2007 and 31/12/2013. 41 patients (mean age 54.61 ± 12.41 years; 86.7% males; mean ejection fraction (EF) 44.51 ± 16.48%) underwent treatment for ES. Hypokalemia (14.63%) and acute coronary syndrome (ACS) (14.63%) were the commonest identifiable triggers. Only 9 (21.95%) patients already had an ICD implanted. Apart from antiarrhythmic drugs (100%), deep sedation (87.8%), mechanical ventilation (24.39%) and neuraxial modulation using left sympathetic cardiac denervation (21.95%) were the common treatment modalities used. Thirty-three (80.49%) patients could be discharged after a mean duration of 14.2 ± 2.31 days. Eight (19.5%) patients died in hospital. The mortality was significantly higher in those with EF