TY - CHAP M1 - Book, Section TI - Pyloric Stenosis A1 - Paul, Ronald I. A2 - Schafermeyer, Robert A2 - Tenenbein, Milton A2 - Macias, Charles G. A2 - Sharieff, Ghazala Q. A2 - Yamamoto, Loren G. PY - 2014 T2 - Strange and Schafermeyer's Pediatric Emergency Medicine, 4e AB - Pyloric stenosis presents most commonly at 5 to 6 weeks of age.Progressive nonbilious projectile vomiting is the most common presenting symptom.The typical electrolyte imbalance is hypochloremic metabolic alkalosis.Diagnosis is confirmed by ultrasound, and rarely by a fluoroscopic upper GI contrast study.Treatment is surgical pyloromyotomy. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/28 UR - accessemergencymedicine.mhmedical.com/content.aspx?aid=1105682667 ER -