Dear Grandma Smith,
I'm very sorry for your situation. I know my mother suffers terribly everytime my daughter Samantha is sick or in the hospital.
My daughter had her g-tube put in at about 15 mths of age. She also had/ and still has trouble gaining weight despite enzymes and the g-tube. A few things that you might want to pass along to your son:
How is the baby's respiration? Samantha was always breathing fast and retracting (you'll see her rib cage contracting with each breath/or notice a retraction at the base of the neck with each breath), even when she was four or five months old. If a baby is working so hard to breathe, they are burning up a lot of calories.
How many stools does the baby have a day? If the baby is stooling a lot (more than five times a day) then the enzymes might need to be adjusted or changed.
Have they tested for acid reflux? Reflux can cause a lot of problems - aspiration of food into the lungs, and often aversion to feeding. Samantha is two now and still rarely eats solid foods.
The feeding tube is initially scary, but in time it becomes very routine. Samantha calls it her "tubie-tube" and will lift her shirt to show anyone willing to look!
You are right, for some, CF is a dreadful disease. But I can tell you from personal experience that your grandchild will grow to be an inspiration to the family. Children with CF are amazing. Please feel free to ask me any questions.
Maria (mother of three daughters, the youngest, Samantha w/cf)