stenosis is narrowing of the pylorus i.e. the lower part of the stomach.
pyloric stenosis is narrowing of the lower end of the stomach due to thickening
of the muscles of the pylorus. The narrowing is up to the extent that milk and
other stomach contents cannot pass into the small intestine. It is also known
as ‘infantile hypertrophic pyloric stenosis’ (IHPS).
stenosis typically affects babies 4-6 weeks after birth. The exact cause of this problem is not known
The most common symptom
of pyloric stenosis is forceful and
. Other symptoms include dehydration, weight loss, fewer
bowel movements and mild jaundice.
Consistent history and
description of the vomiting pattern and appearance, and palpation of a small lump in the mid abdomen
are indicative of
pediatric pyloric stenosis. Abdominal
ultrasound or barium meal X-ray
is used for confirming the diagnosis.
Pediatric pyloric stenosis is a medical emergency and
requires immediate treatment. Correction
of fluid loss, electrolytes, and acid-base imbalance
is the first concern;
after which a surgical procedure called pyloromyotomy is performed to correct the stenosis.