Document Detail

Ultrasound diagnosis of infantile hypertrophic pyloric stenosis: determinants of pyloric length and the effect of prematurity.
MedLine Citation:
PMID:  11977948     Owner:  NLM     Status:  MEDLINE    
AIM: To evaluate the determinants of sonographic measurements of pyloric length and muscle thickness in infants with hypertrophic pyloric stenosis (HPS) and to determine whether infants born prematurely have proportionately smaller measurements. MATERIALS AND METHODS: A retrospective review was carried out of 190 infants operated on for HPS at Bristol Children's Hospital over a 5-year period. Sonographic measurements of pyloric length and muscle thickness were related to age, history of prematurity, weight, sex and family history of HPS. RESULTS: Pyloric length in infants with HPS was significantly greater in those born at term compared to those born prematurely (18.6 mm [SD 2.2] vs 17.3 mm [SD 3.1], P = 0.043); this was explainable by body weight, with length increasing by 1.13 mm (SE 0.35) per kilogram (P = 0.002). There was no significant relationship with measured muscle thickness. CONCLUSION: Sonographic measurement of pyloric length is strongly correlated with the weight of the infant, irrespective of other factors. The relationship of length and weight may be useful in confirming the presence of HPS in small and premature infants.
Nadeem Haider; Richard Spicer; David Grier
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  Clinical radiology     Volume:  57     ISSN:  0009-9260     ISO Abbreviation:  Clin Radiol     Publication Date:  2002 Feb 
Date Detail:
Created Date:  2002-04-29     Completed Date:  2002-05-06     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  1306016     Medline TA:  Clin Radiol     Country:  England    
Other Details:
Languages:  eng     Pagination:  136-9     Citation Subset:  IM    
Copyright Information:
Copyright 2002 The Royal College of Radiologists.
Department of Paediatric Surgery, Bristol Children's Hospital, Bristol, UK.
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MeSH Terms
Birth Weight
Chi-Square Distribution
Gestational Age
Hypertrophy / surgery,  ultrasonography
Infant, Newborn
Infant, Premature
Infant, Premature, Diseases / ultrasonography*
Pyloric Antrum / ultrasonography
Pyloric Stenosis / surgery,  ultrasonography*
Regression Analysis
Retrospective Studies
Sensitivity and Specificity

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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