For the non-doctors in the group, an EEG measures brain activity, and a video EEG allows doctors to observe what a patient is doing while her brain is, or is not, having seizures. In the past, we could correlate Ava's rhythmic eye and hand twitches with definite seizures, and were also able to see many seizures that occurred without physical symptoms (called sub-clinical seizures).
This time, with the exception of an abnormally formed portion in the back her brain, they saw many fewer seizures over all. That's really good news. It's definitely possible that the ketogenic diet is working! Unfortunately that means the episodes she's having at home are not seizures...which means not treatable. They also have no explanation as to why she spends most of her time sleeping. So the burning questions we had are still not answered, and we'll have to sit tight until the MRI on the 14th.