Question:
please explain what effect the body has without the pyloric valve

i am wondering, after a "transectional" r.n.y., does the body not have the pyloric shincter "effect" for the contents of the small pouch emptying into the small intestine. a couple of people told me that it is still there after a transectional r.n.y.. the way is understand it is, that the bottom part of the stomach (where the pyloric shincter is located) will be completely dissconnected. so in essence, does the food just "fall" into the small intestine or is the function of that sphincter still intact? i just can't seem to grasp this concept! please explain... thanks!    — [Anonymous] (posted on October 28, 1999)

October 28, 1999
When the pouch is created out of the top part of the stomach, the rest of the stomach is separated from it. The very small opening from the pouch to the intestine serves as a type of pyloric sphincter, keeping the food in the pouch longer and only allowing it to move slowly into the intestine. Jaye Carl
   — Jaye C.

October 29, 1999
Pyloric sphincter is bypassed after transectional rny, it is out of the food loop and has no more function. The food just falls into the small intestine, limited only by the size of the stomach pouch to small intestine anastamosis, or by any restrictive ring placed there.
   — Bruce B.

October 29, 1999
The operation which keeps the pyloric valve in tact is the distal gastric bypass w/duodenal switch. There is no "dumping" in this operation and the stomach is not transected, a portion of the stomach is removed. You can do further research at www.duodenalswitch.com.
   — Christina D.