Pyloric stenosis pathophysiology

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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]

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Pathophysiology

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

there are also some evidences of increased collagen production and abnormal amounts of extracellular matrix proteins in hypertrophic pyloric muscle.

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 locus inheritance.

Associated Conditions

• Neuromuscular disorders
• Cnnective tissue disorders
• Metabolic disorders
• Intracellular signalling pathway disturbances
• Intercellular communication disturbances
• Ciliopathies
• DNA-repair disturbances
• Transcription regulation disorders
• MAPK-pathway disturbances
• Lymphatic abnormalities
• Environmental factors

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.

Mitchell LE, Risch N (1993). "The genetics of infantile hypertrophic pyloric stenosis. A reanalysis". Am J Dis Child. 147 (11): 1203–11. PMID 8237916.