medical notes

Apr 16th, 2015
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CONGENITAL HYPERTROPHIC PYLORIC STENOSISIntroductionA progressive stenosis of the pyloric canal occurring in infancy.EtiologyThe cause is not known.-positive family historyIncidenceThe incidence is 1-8:1000 births, with a 4:1 male predominance OnsetOnset usually at 3-4 weeks of age.Clinical presentation1) Intermittent, non-bilious, projectile vomiting of increasing frequency and severity2) Initially hungry and feeds avidly, later weakness due to electrolyte imbalances3) Epigastric distention4) Visible gastric peristalsis, from left to right5) An olive-sized mass can often be felt on deep palpation in the right upper abdomen, especially after the child has vomited.6) Jaundice, occasional7) Late signs: dehydration, weight loss8) ConstipationLaboratory Findings: 1. There is hypochloremic metabolic alkalosis with potassium depletion. 2. Hemoconcentration is reflected by

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