Neonatal Hypertrophic Pyloric Stenosis : Congenital or Infantile?

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Hypertrophic pyloric stenosis (HPS) is very rare during the newborn period. Here we present a fullterm male neonate with abundant hematemesis 12 hours after birth which interrupted oral feeding. Bleeding subsided within three days after conservative measures, and oral feeding was restarted but not tolerated. The vomiting was effortless and nonbilious. An upper gastrointestinal series revealed gastric dilatation and partial obstruction of the gastric outlet HPS was found by laparotomy on the fourth day and Fredet-Ramstedt pyloromyotomy relieved the gastric emptying. This is one of the few cases of HPS present at birth, which was diagnosed and surgically treated early, and we suggest a congenital etiology in previously reported cases of HPS. Hypertrophic pyloric stenosis (HPS) is a common cause of pediatric surgery. Usually young infants are involved^1; HPS is extremely rare in neonates and infants older than 6 months^<12>. Vomiting typically begins between the 3^<rd> and 6^<th> week of life, although some infants may have mild symptoms like regurgitation from birth.
東海大学の論文