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[Hypertrophic pyloric stenosis--an indication for sonography]
Insights
Real-time ultrasound reliably diagnoses hypertrophic pyloric stenosis (HPS) in infants. Measurements of pyloric diameter and wall thickness in infants with HPS were significantly greater than in healthy infants.
Area of Science:
- Pediatric Radiology
- Gastroenterology
- Medical Imaging
Context:
- Infants presenting with vomiting require accurate diagnosis of gastrointestinal conditions.
- Hypertrophic pyloric stenosis (HPS) is a common cause of non-bilious projectile vomiting in infants.
- Early and accurate diagnosis of HPS is crucial for timely surgical intervention.
Purpose:
- To evaluate the efficacy of real-time ultrasound in diagnosing hypertrophic pyloric stenosis (HPS) in infants.
- To establish sonographic criteria for HPS diagnosis by measuring pyloric diameter and wall thickness.
- To compare sonographic measurements between infants with HPS and a control group.
Summary:
- Real-time ultrasound examinations were performed on 58 infants with vomiting and 40 healthy controls.
- Measurements of transverse pyloric diameter and single wall thickness were significantly higher (p < 0.001) in the 18 infants diagnosed with HPS compared to controls.
- Sonographic findings of HPS were confirmed by surgery, demonstrating the reliability of the diagnostic tool.
Impact:
- Real-time ultrasound is a reliable, non-invasive tool for diagnosing HPS.
- Standardized sonographic measurements can aid in differentiating HPS from other causes of infant vomiting.
- Improved diagnostic accuracy can lead to better patient outcomes and reduced healthcare costs.
Abstract:
The pyloric region of 58 infants who presented with vomiting was examined by real-time ultrasound. Transverse diameter of the pylorus and single wall thickness were measured. In 18 patients sonographic diagnosis of hypertrophic pyloric stenosis (HPS) was made and subsequently confirmed by surgery. The mean (+/- one standard deviation) of the transverse diameter and of the pyloric wall thickness in patients with HPS was 15 (+/- 1) mm. and 5.5 (+/- 0.7) mm., respectively. Forty infants matched for age and sex distribution without gastrointestinal symptoms served as controls. The measurements for the transverse diameter were 9.6 (+/- 1.8) mm. and for the wall thickness 1.9 (+/- 0.5) mm. Diameter values of patients with HPS were significantly (p less than 0.001) higher than those of the control group and those of the remaining 40 patients without HPS. Real-time sonography proved a reliable tool in the diagnosis of HPS.