Ab workouts with the port?

I did a few sets of crunches months ago when I started exercising, but my port and possibly the band were in such pain afterward that I have not done any abdominal exercises since.

Does anyone know of good ab-strengthening exercises that won't aggravate the band? Has anyone else had this experience? I've had the band for 13 months now, so it should be healed enough to try something.

Thankis!

I do ab exercises 1-2 times per week as part of a weight training class and it is somewhat uncomfortable. I was also banded in April 2007. When we are working upper abs (crunches and twists) I do feel it pulling on the band, lower abs exercises are ok (reverse curl/crunch). Try a web search of lower ab exercises and see how it goes. BTW my son will be attending Univ of MN this fall. We live in Maryland.