Drop seizures are extremely common among individuals with MECP2 duplication syndrome. There is a sudden loss of muscle tone, and if the individual is not supported, he or she drops suddenly to floor, sometimes resulting in injury. Usually these are brief and it is over in a second, but sometimes they come in clusters.
While these drops are certainly one of the most, if not the absolute most, common seizures in MECP2 duplication syndrome, there are actually two kinds of “drops” that look pretty much the same, but are fundamentally very different. It is hard to tell them apart, and at least some individuals with MECP2 duplication syndrome, have both kinds. It may be helpful to figure out which kind is occurring, but it can be really hard to figure out, and it appears that at least some individuals experience both atonic and myoclonic drops.
So what’s the difference? ATONIC VS MYOCLONIC-ATONIC Continue reading