pyloric stenosis…

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digestive system, pyloric stenosis, congenital hypertrophic pyloric stenosis, hypertrophic pyloric stenosis, gastric outlet obstruction, pyloric stenosis, narrowing, the outlet, stomach, small intestine, the pylorus, condition primarily occurs in infants, a thickening, the muscles, the pylorus, prevents the stomach from emptying, small intestine, the thickening, genetic factors, play a role, occurs more commonly in boys than in girls, rare in patients older than 6 months, 2 to 3 of every 1,000 infants has pyloric stenosis, symptoms generally appear several weeks after birth, vomiting, mild at, becoming progressively more forceful, one half hour of feeding, projectile vomiting, infant appears constantly hungry, diarrhea, loose green stools, wave-like motion, the abdomen shortly after feeding, vomiting occurs, dehydration, becoming more profound, the severity, the vomiting, failure to gain weight, weight loss, additional symptoms that associated, abdominal fullness prematurely after meals, belching, apparent abdominal pain, physical examination, signs of dehydration, infant, distended abdomen, palpation, the abdomen, reveal the abnormal pylorus, feels, an olive-shaped mass, a chemistry panel often reveals electrolyte imbalances, an ultrasound of abdomen the first imaging test performed, a barium x-ray reveals a distended stomach, narrowed pylorus, pyloric stenosis involves surgery to split the overdeveloped muscles, the pylorus, rehydration, intravenous fluids, takes place, prior to surgery, frequent feedings, well tolerated several hours, surgery, surgical repair, provides complete relief of symptoms, postoperative vomiting, very common, generally improves, failure to gain weight, in the newborn period, risks associated, surgery, symptoms suggestive of pyloric stenosis develop in infant.