Table 2

Electrical storm characteristics and management

All patients (n = 45)Patients alive at hospital discharge (n = 32)Patients died during hospitalization (n = 13)P-value
Number of shocks for ES:
− <5 shocks24 (53.3)17 (53.1)7 (53.8)
− 5–10 shocks8 (17.8)5 (15.6)3 (23.1)0.825
− >10 shocks13 (28.9)10 (31.2)3 (23.1)
Trigger factor:17 (37.8)12 (37.5)5 (38.5)1.000
− Heart failure11 (24.4)7 (15.6)4 (30.8)0.244
− Hypokalaemia3 (6.7)2 (6.3)1 (7.7)1.000
− Acute coronary syndrome3 (6.7)2 (6.3)1 (7.7)1.000
− Infection1 (2.2)1 (3.1)0 (0.0)1.000
− Anti-arrhythmic drugs interruption and hyperthyroidism1 (2.2)1 (3.1)0 (0.0)1.000
− VT ablation1 (2.2)0 (0.0)1 (7.7)0.289
Anti-arrhythmic drugs used:
− Beta blockers29 (64.4)21 (65.6)8 (61.5)1.000
− Amiodarone42 (93.3)30 (93.8)12 (92.3)1.000
− Lidocaine21 (46.7)16 (50.0)5 (38.5)0.528
− Flecainide1 (2.2)0 (0.0)1 (7.7)0.289
− Magnesium sulfate22 (48.9)16 (50.0)6 (46.2)1.000
Deep sedation19 (42.2)14 (43.8)5 (38.5)1.000
Invasive haemodynamic support22 (48.9)16 (50.0)6 (46.2)1.000
− ECMO16 (35.6)12 (37.5)4 (30.8)0.743
− IABP6 (13.3)4 (12.5)2 (15.4)1.000
VT ablation9 (20.0)5 (15.6)4 (30.8)0.411
Neuraxial modulation (stellate ganglion blockade)1 (2.2)0 (0.0)1 (7.7)0.289
All patients (n = 45)Patients alive at hospital discharge (n = 32)Patients died during hospitalization (n = 13)P-value
Number of shocks for ES:
− <5 shocks24 (53.3)17 (53.1)7 (53.8)
− 5–10 shocks8 (17.8)5 (15.6)3 (23.1)0.825
− >10 shocks13 (28.9)10 (31.2)3 (23.1)
Trigger factor:17 (37.8)12 (37.5)5 (38.5)1.000
− Heart failure11 (24.4)7 (15.6)4 (30.8)0.244
− Hypokalaemia3 (6.7)2 (6.3)1 (7.7)1.000
− Acute coronary syndrome3 (6.7)2 (6.3)1 (7.7)1.000
− Infection1 (2.2)1 (3.1)0 (0.0)1.000
− Anti-arrhythmic drugs interruption and hyperthyroidism1 (2.2)1 (3.1)0 (0.0)1.000
− VT ablation1 (2.2)0 (0.0)1 (7.7)0.289
Anti-arrhythmic drugs used:
− Beta blockers29 (64.4)21 (65.6)8 (61.5)1.000
− Amiodarone42 (93.3)30 (93.8)12 (92.3)1.000
− Lidocaine21 (46.7)16 (50.0)5 (38.5)0.528
− Flecainide1 (2.2)0 (0.0)1 (7.7)0.289
− Magnesium sulfate22 (48.9)16 (50.0)6 (46.2)1.000
Deep sedation19 (42.2)14 (43.8)5 (38.5)1.000
Invasive haemodynamic support22 (48.9)16 (50.0)6 (46.2)1.000
− ECMO16 (35.6)12 (37.5)4 (30.8)0.743
− IABP6 (13.3)4 (12.5)2 (15.4)1.000
VT ablation9 (20.0)5 (15.6)4 (30.8)0.411
Neuraxial modulation (stellate ganglion blockade)1 (2.2)0 (0.0)1 (7.7)0.289

ECMO, extracorporeal membrane oxygenation; ES, electrical storm; IABP, intra-aortic balloon pump; VT, ventricular tachycardia.

Table 2

Electrical storm characteristics and management

All patients (n = 45)Patients alive at hospital discharge (n = 32)Patients died during hospitalization (n = 13)P-value
Number of shocks for ES:
− <5 shocks24 (53.3)17 (53.1)7 (53.8)
− 5–10 shocks8 (17.8)5 (15.6)3 (23.1)0.825
− >10 shocks13 (28.9)10 (31.2)3 (23.1)
Trigger factor:17 (37.8)12 (37.5)5 (38.5)1.000
− Heart failure11 (24.4)7 (15.6)4 (30.8)0.244
− Hypokalaemia3 (6.7)2 (6.3)1 (7.7)1.000
− Acute coronary syndrome3 (6.7)2 (6.3)1 (7.7)1.000
− Infection1 (2.2)1 (3.1)0 (0.0)1.000
− Anti-arrhythmic drugs interruption and hyperthyroidism1 (2.2)1 (3.1)0 (0.0)1.000
− VT ablation1 (2.2)0 (0.0)1 (7.7)0.289
Anti-arrhythmic drugs used:
− Beta blockers29 (64.4)21 (65.6)8 (61.5)1.000
− Amiodarone42 (93.3)30 (93.8)12 (92.3)1.000
− Lidocaine21 (46.7)16 (50.0)5 (38.5)0.528
− Flecainide1 (2.2)0 (0.0)1 (7.7)0.289
− Magnesium sulfate22 (48.9)16 (50.0)6 (46.2)1.000
Deep sedation19 (42.2)14 (43.8)5 (38.5)1.000
Invasive haemodynamic support22 (48.9)16 (50.0)6 (46.2)1.000
− ECMO16 (35.6)12 (37.5)4 (30.8)0.743
− IABP6 (13.3)4 (12.5)2 (15.4)1.000
VT ablation9 (20.0)5 (15.6)4 (30.8)0.411
Neuraxial modulation (stellate ganglion blockade)1 (2.2)0 (0.0)1 (7.7)0.289
All patients (n = 45)Patients alive at hospital discharge (n = 32)Patients died during hospitalization (n = 13)P-value
Number of shocks for ES:
− <5 shocks24 (53.3)17 (53.1)7 (53.8)
− 5–10 shocks8 (17.8)5 (15.6)3 (23.1)0.825
− >10 shocks13 (28.9)10 (31.2)3 (23.1)
Trigger factor:17 (37.8)12 (37.5)5 (38.5)1.000
− Heart failure11 (24.4)7 (15.6)4 (30.8)0.244
− Hypokalaemia3 (6.7)2 (6.3)1 (7.7)1.000
− Acute coronary syndrome3 (6.7)2 (6.3)1 (7.7)1.000
− Infection1 (2.2)1 (3.1)0 (0.0)1.000
− Anti-arrhythmic drugs interruption and hyperthyroidism1 (2.2)1 (3.1)0 (0.0)1.000
− VT ablation1 (2.2)0 (0.0)1 (7.7)0.289
Anti-arrhythmic drugs used:
− Beta blockers29 (64.4)21 (65.6)8 (61.5)1.000
− Amiodarone42 (93.3)30 (93.8)12 (92.3)1.000
− Lidocaine21 (46.7)16 (50.0)5 (38.5)0.528
− Flecainide1 (2.2)0 (0.0)1 (7.7)0.289
− Magnesium sulfate22 (48.9)16 (50.0)6 (46.2)1.000
Deep sedation19 (42.2)14 (43.8)5 (38.5)1.000
Invasive haemodynamic support22 (48.9)16 (50.0)6 (46.2)1.000
− ECMO16 (35.6)12 (37.5)4 (30.8)0.743
− IABP6 (13.3)4 (12.5)2 (15.4)1.000
VT ablation9 (20.0)5 (15.6)4 (30.8)0.411
Neuraxial modulation (stellate ganglion blockade)1 (2.2)0 (0.0)1 (7.7)0.289

ECMO, extracorporeal membrane oxygenation; ES, electrical storm; IABP, intra-aortic balloon pump; VT, ventricular tachycardia.

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