Abstract | AIM: We used non- Hirschsprung's disease (HD) Sox10-Venus Transgenic mice (non-HDSV-mice), an endothelin receptor-B knockout mouse model of HD (HD-mice), and C57B6C3 wild controls (C-mice) to identify the correlation between the anorectal line (ARL) and successful transanal pull-through ( TAPT). METHODS: RESULTS: Stereoscopic microscopy confirmed a squamous-columnar epithelial junction corresponding to the red ink in non-HDSV-mice. Fluorescence microscopy showed intense Venus expression proximal to the ARL and little enteric nerve expression distally. Substance P and CGRP expression were strong in the basal layer of the anal transitional zone (ATZ) in both HD- and C-mice; i.e., distal sensory innervation was normal in HD-mice. CONCLUSIONS: The ARL delineated a distinct demarcation in sensory innervation that is normal even in HD-mice. Thus, the initial incision during TAPT should be based on the ARL because it is readily identifiable and intimately involved with bowel function.
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Authors | Masahiro Takeda, Katsumi Miyahara, Chihiro Akazawa, Geoffrey J Lane, Atsuyuki Yamataka |
Journal | Pediatric surgery international
(Pediatr Surg Int)
Vol. 33
Issue 8
Pg. 883-886
(Aug 2017)
ISSN: 1437-9813 [Electronic] Germany |
PMID | 28601899
(Publication Type: Journal Article)
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Topics |
- Anal Canal
(innervation, surgery)
- Animals
- Disease Models, Animal
- Hirschsprung Disease
(surgery)
- Mice
- Mice, Inbred C57BL
- Mice, Knockout
- Mice, Transgenic
- Microscopy, Fluorescence
- Rectum
(innervation, surgery)
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