Pyloric Stenosis

Question 1

What causes pyloric stenosis, when does it present, and which groups is it more common in?

Answer 1

1. Caused by hypertrophy of pyloric muscle
2. Presents at 3-8 weeks of life.
3. More common in Caucasians and males.

Question 2

What is this a presentation of?

Forceful, projectile vomiting after feeds (non-bilious), constipation. Hungry, dehydrated, malnourished baby.

Answer 2

Pyloric stenosis

Question 3

How is pyloric stenosis diagnosed?

Answer 3

1. Peristaltic waves seen travelling across abdomen during feed
2. Firm olive sized pass in epigastric area
3. Hypokalaemic, hypochloraemic metabolic alkalosis
4. Raised bicarbonate
5. Confirmed on abdominal USS

Question 4

What is the management of pyloric stenosis?

Answer 4

1. Correct electrolyte disturbances

2. Ramstedt’s pyloromyotomy - muscle cut to mucosal layer to say