Flashcards in 3. Congenital pyloric stenosis Deck (9)
MCC of gastric oulte obstruction in infants ( and frequency )
Hypertrophic pyloric stenosis (1: 600)
presentations and results
Palpable “olive” mass in
epigastric region and nonbilious projectile vomiting at ∼ 2–6 weeks old---> Results in hypokalemic hypochloremic
metabolic alkalosis (2° to vomiting of gastric acid and subsequent volume contraction). Treatment
is surgical incision (pyloromyotomy)
-exposure to macrolide
- more common in firstborn males
surgical incision (pyloromyotomy)
• In a patient with congenital pyloric stenosis, hypertrophy of the pylorus leads to what problem?
Gastric outlet obstruction
• An infant with projectile vomiting is found to have a palpable, epigastric, olive-sized mass is found on physical exam. Name this condition.
Congenital pyloric stenosis
• In a baby with suspected congenital pyloric stenosis, what type of vomit would rule out the disorder?
Bilious (bilious vomit originates distal to the pyloric sphincter)
• A 3-week-old baby has projectile nonbilious vomiting and a normal physical exam. What treatment will likely be indicated?
Surgical pyloromyotomy (with pyloric stenosis, the classic "olive mass" is often not palpable)