Dea Ziad,
Your father has now finished his first cycle of Vidaza. This period is very difficult for many patients because all counts are often low.
It is not possible to see any bone marrow changes after one cycle - most patients are evaluated after 6 months.
Platelet response after one month may predict response to Vidaza:
http://www.mdsbeacon.com/news/2011/1...-mds-patients/
Too bad with constipation and nose bleeding. As Chirley wrote you have to prevent constipation with for example lactulose syrup. He has perhaps only been eating small amouts of light food (that is good for him) and you can't expect much result from that kind of food.
I don't think he is refractory to platelets because they were 75 one week ago.
Don't give in - as far as I understand he is getting very good supportive therapy and your support is of cause important too.
Kind regards
Birgitta-A