Pyloric stenosis

Question 1

What is pyloric stenosis?

Answer 1

hypertrophy and narrowing of the passageway between the stomach and duodenum

Question 2

What kind of vomiting and why?

Answer 2

projectile

increasingly powerful peristalsis trying to push food into duodenum

Question 3

when does it present?

Answer 3

6-8 weeks of life

Question 4

baby presentation

Answer 4

few weeks old, hungry baby, thin and FTT

Question 5

what can be seen and felt on examination?

Answer 5

visible peristalsis

olive shaped mass

Question 6

blood gas

Answer 6

hypochloraemic
hypokalaemic
metabolic alkalosis

Question 7

diagnosis

Answer 7

test feed

Abdominal USS

Question 8

treatment

Answer 8

ramstedts pyloromyotomy

Question 9

explain a pyloromyotomy

Answer 9

incision made in smooth muscle of pylorus to widen canal

Question 10

bilious or non-bilious?

Answer 10

non-bilious

Question 11

what is the olive shaped mass?

Answer 11

hypertrophic pylorus

Question 12

More common in males or females?

Answer 12

males

Question 13

aetiology

Answer 13

exposure to nicotine in pregnancy
bottle fed
erythromycin

Question 14

how soon after feeding - vomit?

Answer 14

immediately

Question 15

2 signs seen on barium studies

Answer 15

string sign

beak sign