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Visualisation of the rectoanal inhibitory reflex with a modified contrast enema in children with suspected Hirschsprung disease.

Vult von Steyern, Kristina LU ; Wingren, Pär ; Wiklund, Marie ; Stenström, Pernilla LU orcid and Arnbjörnsson, Einar LU (2013) In Pediatric Radiology 43(8). p.950-957
Abstract
BACKGROUND: Patients with Hirschsprung disease lack the normal rectoanal inhibitory reflex, which can be studied with anorectal manometry or US. OBJECTIVE: To see whether the rectoanal inhibitory reflex could be visualised with a modified contrast enema, thereby increasing the diagnostic accuracy of the contrast enema and reducing the number of rectal biopsies. MATERIALS AND METHODS: Fifty-nine boys and 42 girls (median age, 12 months) with suspected Hirschsprung disease were examined with a modified contrast enema, supplemented with two injections of cold, water-soluble contrast medium, to induce the reflex. Two paediatric radiologists evaluated the anonymised examinations in consensus. The contrast enema findings were correlated with the... (More)
BACKGROUND: Patients with Hirschsprung disease lack the normal rectoanal inhibitory reflex, which can be studied with anorectal manometry or US. OBJECTIVE: To see whether the rectoanal inhibitory reflex could be visualised with a modified contrast enema, thereby increasing the diagnostic accuracy of the contrast enema and reducing the number of rectal biopsies. MATERIALS AND METHODS: Fifty-nine boys and 42 girls (median age, 12 months) with suspected Hirschsprung disease were examined with a modified contrast enema, supplemented with two injections of cold, water-soluble contrast medium, to induce the reflex. Two paediatric radiologists evaluated the anonymised examinations in consensus. The contrast enema findings were correlated with the results of rectal biopsy or clinical follow-up. RESULTS: Five boys and one girl (median age, 7.5 days) were diagnosed with Hirschsprung disease. The negative predictive value of the rectoanal inhibitory reflex was 100%. A contrast enema with signs of Hirschsprung disease in combination with an absent rectoanal inhibitory reflex had the specificity of 98% and sensitivity of 100% for Hirschsprung disease. CONCLUSION: The modified contrast enema improves the radiological diagnosis of Hirschsprung disease. By demonstrating the rectoanal inhibitory reflex in children without Hirschsprung disease, we can reduce the proportion of unnecessary rectal biopsies. (Less)
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author
; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Pediatric Radiology
volume
43
issue
8
pages
950 - 957
publisher
Springer
external identifiers
  • wos:000322119000009
  • pmid:23463159
  • scopus:84880919992
  • pmid:23463159
ISSN
1432-1998
DOI
10.1007/s00247-013-2622-4
language
English
LU publication?
yes
id
5dbabaa9-2232-4a04-8151-9aacc2f6ad71 (old id 3628594)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/23463159?dopt=Abstract
date added to LUP
2016-04-01 11:16:08
date last changed
2022-11-17 21:32:30
@article{5dbabaa9-2232-4a04-8151-9aacc2f6ad71,
  abstract     = {{BACKGROUND: Patients with Hirschsprung disease lack the normal rectoanal inhibitory reflex, which can be studied with anorectal manometry or US. OBJECTIVE: To see whether the rectoanal inhibitory reflex could be visualised with a modified contrast enema, thereby increasing the diagnostic accuracy of the contrast enema and reducing the number of rectal biopsies. MATERIALS AND METHODS: Fifty-nine boys and 42 girls (median age, 12 months) with suspected Hirschsprung disease were examined with a modified contrast enema, supplemented with two injections of cold, water-soluble contrast medium, to induce the reflex. Two paediatric radiologists evaluated the anonymised examinations in consensus. The contrast enema findings were correlated with the results of rectal biopsy or clinical follow-up. RESULTS: Five boys and one girl (median age, 7.5 days) were diagnosed with Hirschsprung disease. The negative predictive value of the rectoanal inhibitory reflex was 100%. A contrast enema with signs of Hirschsprung disease in combination with an absent rectoanal inhibitory reflex had the specificity of 98% and sensitivity of 100% for Hirschsprung disease. CONCLUSION: The modified contrast enema improves the radiological diagnosis of Hirschsprung disease. By demonstrating the rectoanal inhibitory reflex in children without Hirschsprung disease, we can reduce the proportion of unnecessary rectal biopsies.}},
  author       = {{Vult von Steyern, Kristina and Wingren, Pär and Wiklund, Marie and Stenström, Pernilla and Arnbjörnsson, Einar}},
  issn         = {{1432-1998}},
  language     = {{eng}},
  number       = {{8}},
  pages        = {{950--957}},
  publisher    = {{Springer}},
  series       = {{Pediatric Radiology}},
  title        = {{Visualisation of the rectoanal inhibitory reflex with a modified contrast enema in children with suspected Hirschsprung disease.}},
  url          = {{https://lup.lub.lu.se/search/files/2521961/3805703.pdf}},
  doi          = {{10.1007/s00247-013-2622-4}},
  volume       = {{43}},
  year         = {{2013}},
}