29 Gastric outlet obstruction Fig. 29.1 This radiograph demonstrates a distended stomach and a paucity of bowel gas elsewhere. This patient has gastric outlet obstruction (strictly speaking in this case the obstruction is probably just distal to the stomach as gas is seen in the duodenal cap). Note the jejunostomy and right total hip replacement. Gastric outlet obstruction is defined as any process that impedes emptying of the stomach. Its causes are similar to those of intestinal obstruction – functional and mechanical. Diabetic gastroparesis and ileus/pseudo-obstruction are functional causes of obstruction. Mechanical causes can be divided into benign and malignant. The commonest benign cause is peptic ulcer disease leading to scarring and pyloric stenosis. Pancreatic pseudocysts can also cause the same appearances. Malignant causes include pancreatic and gastric tumours as well as metastases. Clinical features Symptoms Patients present with non-bilious vomiting, often shortly after ingestion of a meal, with relatively undigested food in the vomitus. Weight loss may be a feature. Patients may aspirate. Symptomatology may point to the underlying cause. Only gold members can continue reading. Log In or Register to continue Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related posts: Permanent pacemakers Empyema Chronic pancreatitis Large bowel obstruction Brodie’s abscess Slipped upper femoral epiphysis Stay updated, free articles. Join our Telegram channel Join Tags: On-Call X-Rays Made Easy Aug 20, 2016 | Posted by admin in ULTRASONOGRAPHY | Comments Off on Gastric outlet obstruction Full access? Get Clinical Tree
29 Gastric outlet obstruction Fig. 29.1 This radiograph demonstrates a distended stomach and a paucity of bowel gas elsewhere. This patient has gastric outlet obstruction (strictly speaking in this case the obstruction is probably just distal to the stomach as gas is seen in the duodenal cap). Note the jejunostomy and right total hip replacement. Gastric outlet obstruction is defined as any process that impedes emptying of the stomach. Its causes are similar to those of intestinal obstruction – functional and mechanical. Diabetic gastroparesis and ileus/pseudo-obstruction are functional causes of obstruction. Mechanical causes can be divided into benign and malignant. The commonest benign cause is peptic ulcer disease leading to scarring and pyloric stenosis. Pancreatic pseudocysts can also cause the same appearances. Malignant causes include pancreatic and gastric tumours as well as metastases. Clinical features Symptoms Patients present with non-bilious vomiting, often shortly after ingestion of a meal, with relatively undigested food in the vomitus. Weight loss may be a feature. Patients may aspirate. Symptomatology may point to the underlying cause. Only gold members can continue reading. Log In or Register to continue Share this:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window) Related posts: Permanent pacemakers Empyema Chronic pancreatitis Large bowel obstruction Brodie’s abscess Slipped upper femoral epiphysis Stay updated, free articles. Join our Telegram channel Join Tags: On-Call X-Rays Made Easy Aug 20, 2016 | Posted by admin in ULTRASONOGRAPHY | Comments Off on Gastric outlet obstruction Full access? Get Clinical Tree
