<unk>  may reduce the likelihood of survival when compared to patients who have had just one episode of cardiac arrest. Overall resuscitation rates have been estimated to be about 34%, however survival to hospital discharge rates are as low as 7%. This phenomenon may be contributed to<unk> .
Rearrest
Traction 
Bed rest
Decompression 
Trifascicular block
Remote ischemic conditioning
Nerve induction
High-frequency ventilation