TY - CHAP M1 - Book, Section TI - Pyloric Stenosis A1 - Hay, Jr, William W. A1 - Levin, Myron J. A1 - Deterding, Robin R. A1 - Abzug, Mark J. PY - 2017 T2 - Quick Medical Diagnosis & Treatment Pediatrics AB - Postnatal muscular hypertrophy of the pylorusProgressive gastric outlet obstruction, nonbilious vomiting, dehydration, and alkalosis in infants younger than 12 weeksUpper GI contrast radiographs or abdominal ultrasound are diagnosticCause is unknown.Incidence is 1–8 per 1000 births, with a 4:1 male predominanceStudies suggest that erythromycin given in the neonatal period is associated with a higher incidence of pyloric stenosis SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/04/19 UR - accesspediatrics.mhmedical.com/content.aspx?aid=1145458234 ER -