Hello, so sorry to learn about your Mom. I believe what you are describing is an illeus. I have had 2 experiences with this. The first was when my surgeon was preparing me for cancer treatment. She inserted a J-tube and a port. My intestines shut down and I had to be put on an NG tube in the middle of the night to pump my stomach. My stomach shut down for several days. Then just after my Esophageal removal surgery, my intestines shut down again. I was on Reglan and many other things to try to "wake them up". That time they stitched the NG tube right to my nostril. It is a very nasty thing to happen, but is common in surgeries where it is necessary to touch the intestines. I was on a J-tube for several months before and after the removal of my esophagus and part of my stomach in 2004 for EC. They also needed to insert a pic line into a major artery to supplement nourishment until I could eat again. My intestines didn't wake up for many weeks and I battled constipation and nausea/vomiting until they did.
These are major......major health problems, but keep positive and hopeful. Her intestines WILL work again, it is just a slow process. I believe her biggest challenge will be the fight during the chemo to treat the pancreatic cancer.
God be with you all as you go through this terrible time.