Pyloric Stenosis

 • Most common b/w 2 wks - 2 months 

 • Projectile, non-bilious vomiting 

 • Occurs immediately after feeding 

 • Appear hungry in between feedings 

 • Peristaltic waves moving left to right 

 • Olive-shaped mass in RI-JQ 

 • Hypochloremic metabolic alkalosis 

 • DX by ultrasound, upper GI series 

Pyloric stenosis can cause a hypochloremic, hypokalemic metabolic alkalosis. Make sure you resuscitate before sending the patient to the operating room.

Pyloric stenosis presents with bilious, projectile vomiting. It typically occurs between 2 weeks and 2 months of age, and it is more common in males. Diagnosis is made with ultrasound or an upper GI series.

Hemoperitoneum can lead to relative bradycardia thought to be due to irritation of the vagus nerve.  



#PyloricStenosis #Diagnosis #Peds #Pediatrics