I respect that you have much more medical knowledge than I do. However, I disagree with your conclusion that “Whatever made this hospitalization necessary, it is not good or positive”. Your sentence immediately preceding this is “Surgery to correct something is also possible”. Have you considered that thru all the outpatient testing they have come up with a firm diagnosis, and the solution to this is surgery? If that is the case, he may already have had corrective surgery and has begun his recovery.