🥚 Gastrointestinal🟢 BasicStomach Disorders

Congenital Hypertrophic Pyloric Stenosis

A thickening of the muscle at the stomach's outlet in young babies, causing forceful vomiting and blocking milk from passing.

Key points

In congenital hypertrophic pyloric stenosis the muscle at the outlet of the stomach (the pylorus) thickens, narrowing the passage.
It typically appears in the first weeks of life, more often in first-born boys.
The baby has forceful, projectile vomiting of milk soon after feeds, but remains hungry and feeds again eagerly.
A firm, olive-shaped lump may be felt in the upper abdomen, and waves of stomach movement may be seen.
Repeated vomiting loses acid and salt, causing a typical disturbance of the blood chemistry, and ultrasound confirms the thickened muscle.

Memory trick

Pyloric stenosis is a thickened pyloric muscle in a young baby (first-born boys): projectile vomiting after feeds but still hungry; an olive-shaped upper-abdomen lump and visible stomach waves; loses acid and salt; ultrasound confirms.

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🥚 Gastrointestinal🟢 BasicStomach Disorders

Congenital Hypertrophic Pyloric Stenosis

A thickening of the muscle at the stomach's outlet in young babies, causing forceful vomiting and blocking milk from passing.

Key points

In congenital hypertrophic pyloric stenosis the muscle at the outlet of the stomach (the pylorus) thickens, narrowing the passage.
It typically appears in the first weeks of life, more often in first-born boys.
The baby has forceful, projectile vomiting of milk soon after feeds, but remains hungry and feeds again eagerly.
A firm, olive-shaped lump may be felt in the upper abdomen, and waves of stomach movement may be seen.
Repeated vomiting loses acid and salt, causing a typical disturbance of the blood chemistry, and ultrasound confirms the thickened muscle.

Memory trick

All of General Surgery More Gastrointestinal