Pyloric stenosis, also known as infantile hypertrophic pyloric stenosis, is a rare condition that makes the valve between a newborn's stomach and small intestine get thick and swollen. This blocks ...

Infantile hypertrophic pyloric stenosis (IHPS) is a common condition in neonates that is characterized by an acquired narrowing of the pylorus. The aetiology of isolated IHPS is still largely unknown.

Oral azithromycin or erythromycin use may increase risk for infantile hypertrophic pyloric stenosis (IHPS), particularly with exposure in the first 2 weeks of life, according to findings from a ...