I suppose for each case it differs. Tim has no problem eating at all, and we know that his breathing is deteriorating quickly. It does not matter if he was being fed with a peg, when he no longer can breath, he has to decide whether he goes that way, or goes on a ventilator. We saw Tims' doctor yesterday, and she said that only 2-7% of all the CALS in Canada chose to go on ventilators. Statistics show that once a person's respiratory function begins to decline, it does so at a rate of 2-5% a month. Tim was functioning at 75% in July. I am not sure what percentage is required to sustain life, but a DPS can slow it down to .9% a month, and in at least one person on this forum he has remained at 46% for 18months with it. Tim has not decided yet whether he will be ventilated when his function is too low, but if we can postpone the need for a ventilator it would be a blessing.
I must say we did not see this coming as Tim's weight is excellent, and his voice and speech is unaffected. We have seen a fairly rapid decline in his ability to move, but thought it would be bulbar disfunction that would indicate breathing problems.