Duodenal obstruction is a partial or complete obstruction of the first part of the small intestine – the duodenum. Obstruction prevents the normal passage of stomach contents into the duodenum and keeps the gallbladder and pancreas from draining their secretions. Duodenal obstruction can lead to problems with digestion, nutrition, and fluid balance. If the duodenum is obstructed, it can lead to a bacterial infection of the peritoneal tissue lining the intestines and abdomen. Fluid accumulation will lead to vomiting and can also result in dehydration.
Duodenal Obstruction: Definition and Patient Education, Health Line, www.healthline.com