My mother is a long term diabetic with normal pressure hydrocephalus. Can she undergo surgery?

Hello doctor,

My mother is 70 years old and has long diabetes (almost 40 years). For the last 20 years, she have a memory problem. She fell two times almost eight years ago. After that she have walking difficulty, for the last five years, she also have a problem controlling urine also. These problems are increasing day by day. Doctors suspect it may be normal pressure hydrocephalus. But her body is extremely weak, so it is a big question whether she can take the pressure of surgery or not.

She is taking Trajenta Duo (2.5/1000) two times, Vogo 0.2 two times, Olmezest- 40, Betonin syrup twice daily, Rejunex CD 3, Ecospirin AV 75, Bladmir-25, Aricept-5, Softvac-SF, Insulin Lantus 10 unit at night. But we are not getting any improvement. What will we do? Please suggest.