If you truely have ALS with bulbar onset, the average lifespan is less than 1 year. So the onset of other signs on EMG would be quick. But, frankly, there would be other EMG changes in other muscle groups. People would notice the drooling, difficulty with chewing and swallowing and would have changed their diet to soft so they could chew. There would be episodes of choking-like occurances due to poor swallowing etc. The neurologist usually would have a feel for ALS upon the clincal examination.
It would very, very unlikely that you would have only selective bulbar signs, without EMG findings and have ALS. In fact, you would probably be the first.
I hope I answered your question.
Sincerely,
CCF Neuro MD
tewest99
Saint
Posts: 886
Joined: Tue February 7th, 2006 1:10 am