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Pyloric stenosis in the sick premature infant. Clinical and radiological findings
E D Tack1, J M Perlman, R J Bower
1Division of Newborn Medicine, Children's Hospital at Washington University Medical Center, St Louis, MO 63110.
Insights
Idiopathic hypertrophic pyloric stenosis can affect premature infants, presenting with nonspecific symptoms like vomiting and abdominal distention. Early consideration is crucial for timely diagnosis and management in this vulnerable population.
Area of Science:
- Neonatal Medicine
- Pediatric Surgery
- Gastroenterology
Background:
- Idiopathic hypertrophic pyloric stenosis (IHPS) is typically diagnosed in healthy, term infants.
- Premature infants present unique diagnostic challenges due to nonspecific symptoms.
Observation:
- This case series describes five sick premature infants diagnosed with IHPS.
- Common clinical signs included recurrent nonbilious emesis and abdominal distention.
- Radiographic findings revealed persistent gastric dilatation in most cases.
Findings:
- Clinical presentation in premature infants with IHPS is often nonspecific.
- Inability to pass a nasojejunal feeding tube was a key diagnostic clue.
- Gastric dilatation on plain radiographs is an important radiographic marker.
Implications:
- IHPS should be included in the differential diagnosis for premature infants with upper gastrointestinal symptoms.
- Early recognition can prevent delayed diagnosis and potential complications.
- Further research into IHPS in premature infants is warranted.
Abstract:
The clinical and radiographic features of five sick premature infants with idiopathic hypertrophic pyloric stenosis are presented. Clinical features were nonspecific, the common findings being recurrent nonbilious emesis, persistent abdominal distention, and the inability to place a nasojejunal feeding tube through the pylorus. Plain abdominal radiographs demonstrated persistent gastric dilatation in four of the infants. Idiopathic hypertrophic pyloric stenosis should be considered in the differential diagnosis of premature infants with upper gastrointestinal tract symptoms.