Breeds with deep chests and narrow waists, such as the Bouvier des Flandres, Great Dane, German Shepherd or Doberman Pinscher, for instance, are susceptible to a syndrome of gastric torsion and bloat, where the stomach twists on its supporting ligaments, sealing off the exits, and the contents begin to generate gas pressure which is not only terribly painful (as can be imagined by anyone who has experienced even mild gas pains), but kills large areas of stomach tissue fairly quickly, resulting in a painful death within a very few hours. If bloat is suspected, emergency medical treatment must be sought out immediately with a veterinarian or emergency treatment center.  Dogs who have experienced such an attack are very susceptible to another which is usually more severe, and this is one case where the most medical intervention usually proves the best choice, normally involving abdominal surgery to tack the dog's stomach down in several places to prevent recurrence.