The only experience I have is from a friend who had to have a tube (don't know what type) when she was pregnant as she couldn't keep any food down and they don't let you lose much weight when you are pregnant.I think the main issue was keeping the thing clean and watching out for infections. Anytime you have a tube sticking out of you that is an issue as any opening into the body that isn't natural carries the risk. So the main thing is whatever protocol they would give you for maintaining the thing you need to follow exactly.She didn't have any problems with hers and near the end of the pregnancy she could keep food down and they took it out. The baby was fine.K.------------------I have no financial, academic, or any other stake in any commercial product mentioned by me.My story and what worked for me in greatly easing my IBS: http://www.ibsgroup.org/ubb/Forum17/HTML/000015.html