نتایج جستجو برای: aganglionic
تعداد نتایج: 186 فیلتر نتایج به سال:
Abstract Background Functional disturbances of the gastrointestinal tract are caused by a number neurodysplastic conditions, including diseases that rarer than Hirschsprung’s disease (HSCR), such as ganglion cell immaturity and intestinal neuronal dysplasia (IND). Bcl-2 shows positive immunoreactivity in degenerative immature cells (IGCs). This work evaluates implication immunohistochemical exp...
Introduction: Constipation is one of the most common complaints of individuals, which may present with complication like hemorrhoid and fissure. Hirschsprung is a disease presenting with chronic constipation and its diagnosis may be delayed until adulthood. It is diagnosed by biopsies from anorectal transitional zone. This study aimed to evaluate the association between Hirschsprung and anorect...
Congenital diseases of dysmotility are a serious problem in children and, potentially, also in adults. Advances have recently been made in understanding one cause of pediatric dysmotility, Hirschsprung’s disease, which is the most visible congenital defect of the enteric nervous system (ENS). Although the diagnosis of Hirschsprung’s disease is sometimes missed, and the length of involved gut ma...
hirschsprung's disease, also known as congenital aganglionic megacolon, is a congenital disorder which develops due to an absence of neural ganglia in a segment of large bowel. most commonly, the rectum or rectosigmoid, and rarely other areas or the entire colon are involved. in this disease, all three neural plexi, i.e., the myenteric (auerbach's) plexus, the superficial submucosal (...
background: hirschsprung disease is a complex genetic disorder of the enteric nervous system (ens), often called congenital aganglionic megacolon and characterized by the absence of enteric neurons along a variable length of the intestine. the definitive diagnosis of hirschsprung disease relies on histologic and/or histochemical staining of sections from suction rectal biopsies. calretinin immu...
I do not intend to give an account of the changing philosophies concerning the aetiology and treatment of the disease which followed upon Hirschsprung's (1888) first presentation of it as an entity in 1886. It required about 60 years of vague or wrong ideas to find the key to our present knowledge. That happened when our attention was diverted from the characteristic megacolon and was focused o...
The enteric nervous system (ENS) is mainly derived from vagal neural crest cells (NCC) that arise at the level of somites 1-7. To understand how the size and composition of the NCC progenitor pool affects ENS development, we reduced the number of NCC by ablating the neural tube adjacent to somites 3-6 to produce aganglionic gut. We then back-transplanted various somite lengths of quail neural t...
Anorectal innervation that governs sensation, motor function, and rectal accommodation can be influenced by the type of surgical procedure used to treat children with Hirschsprung disease. At our institution, we began to perform single-stage, laparoscopy-assisted transanal endorectal pull-through (LATEP) with submucosal dissection and anastomosis of the ganglionated bowel at 2 different levels ...
BACKGROUND/PURPOSE In Hirschsprung's disease (HD) redo pull-through (PT) is indicated for anastomotic complications and retained aganglionosis after a previous operation. Duhamel or Swenson method is used commonly for redo operations. The pelvic dissection may be difficult, especially in Swenson's type of operation, because of fibrosis resulting from previous surgery or its complications. To ov...
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