One of the goals of the electrode grid placement was to get much more detailed information about what is going on in the brain during seizures...specifically, where they begin, and where they travel. Additionally, we needed to know what other functions are housed in the same locale as the seizure origin.
Before the grid placement, it was suspected that the seizures began in the temporal lobe of the brain, and that a likely approach would be to identify the very specific area of origin, and to remove that portion. However, by using the electrode grid, they were able to determine that the seizure activity actually began next to the temporal lobe (I forget the name of the origin locale) and that they traveled immediately (in 1-2 seconds, and before any outward symptoms of the seizure are even visible) to the temporal lobe, giving a false understanding of the point of origin. He described the area as being highly epileptogenic (I learned a new word today!) or prone to being an area where epileptic seizures originate. The image that comes to mind is of the schoolroom bully, who starts the trouble, but lays the blame on an unsuspected and innocent person, who then gets punished for their supposed activity. They also learned that Adam's language center is right smack dab next to the point of origin...too darn close to attempt any removal. Years of seizures playing out in the temporal lobe have affected and damaged that area (the surgeon's words were "pounded on"), which also led them to believe that was the point of origin. Disheartening news, but information that could not be gained in any of the other neurological tests.
So...in a conference today with the epileptologist (neurologist specializing in epilepsy) and the neuro-surgeon, we learned of their suggestion of a Plan B. Since the damage removal option could no longer be considered, they suggested a different procedure: Multiple Subpial Transections (MST). This is a new-ish (just over 20 years old in experimental usage, only about 5-10 years in more routine usage) procedure, but with a good track record. It is not uniformly successful, and the capability of predicting which candidates have a better prospect of success has not yet been developed. For this procedure, instead of removing anything from the brain, they make a series of small, shallow cuts that interfere with the movement of the seizure activity from one area to another. Back to our school yard analogy, suppose our bully tried to start some trouble, but couldn't find anyone to tell about it? The activity would just dissipate without making it into anything larger. Or as my dad frequently told us..."it takes one to start something, but two to keep it going." A seizure impulse that can't get anyplace else involved is much smaller and less effective...or so it seems at least for some people. This isn't the preferred method for epilepsy surgery (at least by our neuro-surgeon) since less is known about it in terms of identifying good candidates, predicting success, etc. In fact, he described it (along with other current neuro-surgical procedures) as somewhat of a "gladiator" approach, which I took to mean less refined, less specific, etc., and the possibility certainly exists for much more elegant solutions in the future that would involve less trauma to the brain. He would not be likely to even recommend this procedure in Adam's case except for the fact that the second surgery does have to happen...if only to remove the electrode grid. Adding this procedure only adds about 15 minutes to the length of the surgery, adds minimal additional risk, and does bring with it the possibility of improvement of seizure control, frequency, strength, and may also lessen the amount of medication that Adam needs to take.
We'll talk to Adam about it this afternoon (he was asleep during most of the conference)and decide between now and tomorrow morning what we are going to do. At this point, both Brian and I are leaning clearly to including this procedure, but we will get Adam's take on it, too.
Another point that came out in the conversation was the mention of Deep Brain Stimulation (the procedure/surgery that would be working towards relief of Adam's dystonia), and they mentioned that a wait of around six months would be the appropriate time frame to let the brain heal up before submitting it to another procedure. This was really nice information to gain, as we had not yet been given any information about the timing of these various procedures.
Lots to think about today! Keep sending those positive thoughts as we wrestle with this decision.