Pyloric stenosis

Question 1

What is Pyloric stenosis?

Answer 1

Hypertrophy of pyloric muscle causing gastric outlet obstruction

Question 2

When does pyrloric stenosis normally present?

Answer 2

1. 2 - 7 weeks after birth

Question 3

What two features are found and seen on examination?

Answer 3

1. Visible peristalsis

2. ‘Olive shaped mass’ in the RUQ

Question 4

Key features of pyloric stenosis

Answer 4

1. Projectle, billous vomiting
2. Vomiting 30 minutes after feeds
3. Hunger after feeds
4. Weightloss

Question 5

Ix

Answer 5

1. Ultrasound - Diagnosis is usually made on ultrasound

2. ABG - hypochloremic metabolic alkalosis with low sodium and low plasma potassium

Question 6

Mx

Answer 6

1. IV fluids to correct fluid and electrolyte balance

2. Pyloromyotomy surgery to divide hypertrophied muscle