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{{Pyloric stenosis}}
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== Pathophysiology ==
== Pathophysiology ==
The [[pathogenesis]] of infantile hypertrophic pyloric stenosis is not fully understood but it may be due abnormal innervation of the pyloric [[smooth muscle]].  
The [[pathogenesis]] of infantile hypertrophic pyloric stenosis is not fully understood but it may be due abnormal innervation of the pyloric [[smooth muscle]]. There are also some [[locus]] evidences of increased [[collagen]] production and abnormal amounts of [[extracellular matrix protein]]s in hypertrophic pyloric [[muscle]].<ref name="pmid9553181">{{cite journal| author=Ohshiro K, Puri P| title=Pathogenesis of infantile hypertrophic pyloric stenosis: recent progress. | journal=Pediatr Surg Int | year= 1998 | volume= 13 | issue= 4 | pages= 243-52 | pmid=9553181 | doi=10.1007/s003830050308 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9553181  }} </ref> There is no known [[pathophysiology]] for adult-onset hypertrophic pyloric stenosis (HPS).
 
There are also some [[locus]] evidences of increased [[collagen]] production and abnormal amounts of [[extracellular]] [[matrix]] proteins in hypertrophic pyloric [[muscle]].<ref name="pmid9553181">{{cite journal| author=Ohshiro K, Puri P| title=Pathogenesis of infantile hypertrophic pyloric stenosis: recent progress. | journal=Pediatr Surg Int | year= 1998 | volume= 13 | issue= 4 | pages= 243-52 | pmid=9553181 | doi=10.1007/s003830050308 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=9553181  }} </ref>
 
There is no known [[pathophysiology]] for adult-onset hypertrophic pyloric stenosis (HPS).


== Genetics ==
== Genetics ==
In one study the familial recurrence pattern among monozygotic cotwins and more remote relatives of IHPS probands was found to be inconsistent with generalized single major inheritance.<ref name="pmid8237916">{{cite journal| author=Mitchell LE, Risch N| title=The genetics of infantile hypertrophic pyloric stenosis. A reanalysis. | journal=Am J Dis Child | year= 1993 | volume= 147 | issue= 11 | pages= 1203-11 | pmid=8237916 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8237916  }} </ref>
In one study, the familial recurrence pattern among monozygotic cotwins and more remote relatives of IHPS probands was found to be inconsistent with generalized single major inheritance.<ref name="pmid8237916">{{cite journal| author=Mitchell LE, Risch N| title=The genetics of infantile hypertrophic pyloric stenosis. A reanalysis. | journal=Am J Dis Child | year= 1993 | volume= 147 | issue= 11 | pages= 1203-11 | pmid=8237916 | doi= | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=8237916  }} </ref>


== Associated Conditions of infantile hypertrophic pyloric stenosis ==
== Associated Conditions of Infantile Hypertrophic Pyloric Stenosis ==
*Neuromuscular disorders
*Neuromuscular disorders
*[[Connective tissue]] disorders
*[[Connective tissue]] disorders
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*[[Lymphatic system|Lymphatic]] abnormalities
*[[Lymphatic system|Lymphatic]] abnormalities
*Environmental factors<ref name="pmid22777173">{{cite journal| author=Peeters B, Benninga MA, Hennekam RC| title=Infantile hypertrophic pyloric stenosis--genetics and syndromes. | journal=Nat Rev Gastroenterol Hepatol | year= 2012 | volume= 9 | issue= 11 | pages= 646-60 | pmid=22777173 | doi=10.1038/nrgastro.2012.133 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22777173  }} </ref>
*Environmental factors<ref name="pmid22777173">{{cite journal| author=Peeters B, Benninga MA, Hennekam RC| title=Infantile hypertrophic pyloric stenosis--genetics and syndromes. | journal=Nat Rev Gastroenterol Hepatol | year= 2012 | volume= 9 | issue= 11 | pages= 646-60 | pmid=22777173 | doi=10.1038/nrgastro.2012.133 | pmc= | url=https://www.ncbi.nlm.nih.gov/entrez/eutils/elink.fcgi?dbfrom=pubmed&tool=sumsearch.org/cite&retmode=ref&cmd=prlinks&id=22777173  }} </ref>
==References==
==References==
<references />
{{Reflist|2}}

Revision as of 15:41, 16 November 2017

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Mohamadmostafa Jahansouz M.D.[2]

Overview

The pathogenesis of infantile hypertrophic pyloric stenosis is not fully understood but it may be due abnormal innervation of the pyloric smooth muscle.

Pathophysiology

The pathogenesis of infantile hypertrophic pyloric stenosis is not fully understood but it may be due abnormal innervation of the pyloric smooth muscle. There are also some locus evidences of increased collagen production and abnormal amounts of extracellular matrix proteins in hypertrophic pyloric muscle.[1] There is no known pathophysiology for adult-onset hypertrophic pyloric stenosis (HPS).

Genetics

In one study, the familial recurrence pattern among monozygotic cotwins and more remote relatives of IHPS probands was found to be inconsistent with generalized single major inheritance.[2]

Associated Conditions of Infantile Hypertrophic Pyloric Stenosis

References

  1. Ohshiro K, Puri P (1998). "Pathogenesis of infantile hypertrophic pyloric stenosis: recent progress". Pediatr Surg Int. 13 (4): 243–52. doi:10.1007/s003830050308. PMID 9553181.
  2. Mitchell LE, Risch N (1993). "The genetics of infantile hypertrophic pyloric stenosis. A reanalysis". Am J Dis Child. 147 (11): 1203–11. PMID 8237916.
  3. Peeters B, Benninga MA, Hennekam RC (2012). "Infantile hypertrophic pyloric stenosis--genetics and syndromes". Nat Rev Gastroenterol Hepatol. 9 (11): 646–60. doi:10.1038/nrgastro.2012.133. PMID 22777173.