What I know about PEG's vs. Nasogastric tubes is that Nasogastric tubes are for short term use more so. They go into the stomach and that is where the they deliver the feeding, medication or water you put through them. The PEG on the other hand is inserted into the stomach through a small incision, and guided down to the jejunum, a part of the small intestine and that is where it delivers the feeding and all else you put into it. They can stay in place for longer periods of time, are not so easily dislodged, and you have less chance of aspiration from the feeding. They can come out on their own and also migrate back up into the stomach or become kinked, however, this will be evident on visual examination or when it may appear blocked and cannot be cleared with flushing. If this happens you would need to go to the radiology unit where it was placed and have it checked under xray. It would then be replaced if needed. Replacement is as simple as taking the old one out and a new inserted through the same hole all under xray to assure proper placement. Hope that information is helpful to anyone that is considering which is the best route to go.