Gastropexy
Surgical fixation of the stomach to the body wall to prevent gastric dilatation-volvulus (bloat). Often done at the time of de-sexing in high-risk breeds.
Gastropexy is a preventive surgery in which the stomach is tacked to the inside of the abdominal wall, so it can no longer twist on its axis. The stomach can still distend with gas (dilatation), but cannot rotate (volvulus). This prevents the life-threatening half of GDV.
The procedure is often done laparoscopically (keyhole) and adds limited time to a routine de-sexing surgery. For high-risk breeds — Great Danes, Standard Poodles, Weimaraners, German Shepherds, Setters, Saint Bernards, Akitas — prophylactic gastropexy reduces lifetime GDV risk dramatically.
Discuss with your vet at the time of considering de-sexing for these breeds. Cost is moderate when added to an existing procedure; far less than emergency GDV surgery (which is also far more dangerous).