I'm so sorry for you and your grandmother, I went through the same with my mother. The Drs. gave her 3 or 4 months, she had a stint, then had it replaced about 4 or 5 times, she lived about 17 or 18 months after the original diagnoses. Her pancreas finally shut down completely about 3 weeks before she passed, but she was unaware because she was in a semi comatosed state. The not being able to keep food in her may, she should try a very low sugar low carb low fat diet, I know it's very bland but it might help, it did for my mom.