Pyloric stenosis in children

Question 1

What is pyloric stenosis (RF, Sx)

Answer 1

hypertrophy of the pyloric sphincter results in narrowing of the pyloric canal–, most common cause of projectile vomit in 2-12 weeks old
aetiology unkown

male, first born, fhx of pyloric stenosis

Sx - projectile vomiting, non bilious, after feeding
Olive shaped/feeling
can sometimes feel peristalstic waves from tummy
If diagnosis is delayed -volume depletion/signs of tachycardia

Question 2

Ix and Mx of Pyloric stenosis

Answer 2

Ix -bloods
sigs of dehydration and
hypochloraemic alkalosis and mild hypokalaemia

abdo uss is diagnostic but rarely needed -clinical

Ix - iv fluid ressus
Corrective laproscopic surgery