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Pyloric stenosis is a narrowing of the opening from the stomach to the first part of the small intestine (the pylorus). [1] Symptoms include projectile vomiting without the presence of bile. [1] This most often occurs after the baby is fed. [1] The typical age that symptoms become obvious is two to twelve weeks old. [1]
In children, congenital pyloric stenosis / congenital hypertrophic pyloric stenosis may be a cause. A pancreatic pseudocyst can cause gastric compression. Pyloric mucosal diaphragm could be a rare cause. Malignant Tumours of the stomach, including adenocarcinoma (and its linitis plastica variant), lymphoma, and gastrointestinal stromal tumours
[5] [1] Hypertrophic Pyloric stenosis is a gastrointestinal tract defect, most commonly seen in young children, typically in the first few months of life, caused by enlargement of the tissue in the pyloric muscle. [5] [4] [1] This causes the contents of the stomach to be unable to empty leading to pain after eating, electrolyte abnormalities ...
Gastrectomy, gastric bypass surgery, diabetes, esophageal surgery, absent or inefficient pyloric sphincter, pyloric stenosis Dumping syndrome occurs when food, especially sugar, moves too quickly from the stomach to the duodenum —the first part of the small intestine—in the upper gastrointestinal (GI) tract .
Newborns present with bilious or non-bilous vomiting (depending on where in the duodenum the obstruction is) within the first 24 to 48 hours after birth, typically after their first oral feeding. Radiography shows a distended stomach and distended duodenum, which are separated by the pyloric valve, a finding described as the double-bubble sign.
Symptoms: Abdominal pain, vomiting, bloody stool [1] Complications: Peritonitis, bowel perforation [1] Usual onset: Over days to weeks in a 6- to 18-month-old [1] Causes: Unknown, lead point [1] Diagnostic method: Medical imaging [1] Differential diagnosis: Pyloric stenosis [1] Treatment: Enema, surgery [1] Medication: Dexamethasone [2]
A classic association is Heyde's syndrome (coincidence of aortic valve stenosis and bleeding from angiodysplasia). [4] In this disorder, von Willebrand factor (vWF) is proteolysed due to high shear stress in the highly turbulent blood flow around the aortic valve. vWF is most active in vascular beds with high shear stress, including ...
Several studies have found that patients with portal hypertension develop increased blood flow to the stomach. [3] The physiological findings that correlate with worsening portal hypertensive gastropathy include an increased portal venous pressure gradient and decreased hepatic blood flow. [4]