Christopher P. Coppola, Alfred P. Kennedy, Jr. and Ronald J. Scorpio (eds.)Pediatric Surgery2014Diagnosis and Treatment10.1007/978-3-319-04340-1_22
© Springer International Publishing Switzerland 2014
Pyloric Stenosis
(1)
Department of Pediatric Surgery, Janet Weis Children’s Hospital, 100 N. Academy Av. MC 21-70, Danville, PA 17822, USA
Abstract
Pyloric stenosis is a very common malady of newborns, and is characterized by non-bilious vomiting after meals, which becomes projectile as the stenosis worsens. Before the option of surgical repair, infants with this illness would often die of dehydration and starvation.
Pyloric stenosis is a very common malady of newborns, and is characterized by non-bilious vomiting after meals, which becomes projectile as the stenosis worsens. Before the option of surgical repair, infants with this illness would often die of dehydration and starvation.
1.
Hypertrophy of the pylorus in some newborns and infants causes gastric outlet obstruction and vomiting of feeds.
2.
In pyloric stenosis the pylorus is thickened and remains in spasm. Hypertrophy develops over several weeks with worsening vomiting. The pyloric lumen is narrowed and eventually remains shut.
3.
Pyloric stenosis usually occurs at 4–6-weeks-old, but has been reported in utero and in infants as old as 4-months-old. It affects one in 400 infants and it has a male to female incidence ratio of four to one. It occurs more commonly in first-born children and has a 1–5 % incidence in children of affected individuals.
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