Welcome to the board. I'm sorry your brother has had such a hard time. Memorial Sloan Kettering in New York is an excellent facility. I'm not sure how far that is from him. Even with excellent care, if the patient isn't willing to follow instructions, what's the point.

A barium swallow would be the test that would detect if anything is wrong with his swallowing function. Hopefully it's just a minor problem that can be solved very easily.

I hope you will be able to shake some sense into him.

My thoughts and prayers go with you.
Lynn