Seizure changes during electrolyte therapy. In A, the pattern responses were similar for the three patients. B. after the VNS implantation the patient has a mild relief in the seizure number for a short period (2 months). He returns to his baseline seizure frequency. Marked improvement both with ET and KD. Graphics in C illustrate the improvement in seizure severity (cluster). In D, the absence seizures improvement was evident. Original source. ETS = Electrolyte therapy started; ETstp = Electrolyte therapy stopped; GTC = Generalized tonic-clonic seizures; KD = Ketogenic diet; VNS = Vagus nerve stimulator.