Most common cause of gastric outlet obstruction in infants. Palpable olive-shaped mass in epigastric region, visible peristaltic waves, and nonbilious projectile vomiting at ∼2–6 weeks old.
Ultrasound shows thickened and lengthened pylorus. Treatment is surgical incision (pyloromyotomy).
katsuFA 2019 p. 353: Most common cause of gastric outlet obstruction in infants (1:600). Palpable olive-shaped mass in epigastric region, visible peristaltic waves, and nonbilious projectile vomiting at ∼ 2–6 weeks old. More common in firstborn males; associated with exposure to macrolides. Results in hypokalemic hypochloremic metabolic alkalosis (2° to vomiting of gastric acid and subsequent volume contraction). Ultrasound shows thickened and lengthened pylorus. Treatment is surgical incision (pyloromyotomy).+2019-07-14T08:34:40Z
to snoo-finity ... and beyond!
submitted by hayayah(525), 2019-05-15T01:59:04Z
Most common cause of gastric outlet obstruction in infants. Palpable olive-shaped mass in epigastric region, visible peristaltic waves, and nonbilious projectile vomiting at ∼2–6 weeks old.
Ultrasound shows thickened and lengthened pylorus. Treatment is surgical incision (pyloromyotomy).