What is a slipped Band, and what causes it?
There are two types of slippage; anterior and posterior. This refers to whether the front or back side of the stomach slips. There is something else called concentric pouch dilation, but this is not the same as slippage. Slippage or prolapse is when the stomach slides up through the Band, making the pouch bigger. If this happens the Band usually becomes too tight, and patients experience symptoms of reflux (heartburn) as well as nausea and vomiting. This is because the amount of stomach being squeezed by the Band is increased, thereby obstructing the Band. There are several causes. Posterior slippage was more common when the Band was placed by the perigastric technique. With this technique the back side of the stomach was free to slide up through the Band. These days most surgeons use the pars flaccida technique, which was developed to prevent posterior slippage, and has more or less eliminated the incidence of this problem. Anterior slippage is when the front of the stomach slips up t
