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Created page with '* A common condition. * Occurs following trauma or abdominal surgery. * Stasis of gut flow due to failure of [http://en.wikipedia.org/wiki/Peristalsis| peristalsis]. ** Leads t…'
* A common condition.
* Occurs following trauma or abdominal surgery.
* Stasis of gut flow due to failure of [http://en.wikipedia.org/wiki/Peristalsis| peristalsis].
** Leads to distension with gas and fluid, as well as a flaccid intestinal wall.
=====Causes=====
* Anything which stops peristalsis, e.g.
** Damage to nerve supply to intestine (autonomic nervous system)
** Pain
** Abnormal metabolism
** Toxaemia
** Electrolyte imbalance such as hypocalcaemia, hypomagnesaemia, and hypokalaemia.
* Also in
** Diabetes mellitus
** Uraemia
** Tetanus
** Lead poisoning.
=====Pathology=====
* loss of smooth muscle tone leads to a flaccid bowel.
* Bowel is distended with fluid.
=====Pathogenesis=====
* Intestine susceptible to neurogenic damage during an operation.
* Peristalsis fades away over a few days producing paralytic (adynamic) ileus.
* Particularly occurs if bowel handled roughly, or if serosa gets cold and dry at surgery.
* Very difficult to start peristalsis again but will sometimes respond to pharmacological or electrical stimulation.
* The horse is very susceptible, and the dog is somewhat suscpeitble.[[Category:Intestines - Functional Obstruction]]
* Occurs following trauma or abdominal surgery.
* Stasis of gut flow due to failure of [http://en.wikipedia.org/wiki/Peristalsis| peristalsis].
** Leads to distension with gas and fluid, as well as a flaccid intestinal wall.
=====Causes=====
* Anything which stops peristalsis, e.g.
** Damage to nerve supply to intestine (autonomic nervous system)
** Pain
** Abnormal metabolism
** Toxaemia
** Electrolyte imbalance such as hypocalcaemia, hypomagnesaemia, and hypokalaemia.
* Also in
** Diabetes mellitus
** Uraemia
** Tetanus
** Lead poisoning.
=====Pathology=====
* loss of smooth muscle tone leads to a flaccid bowel.
* Bowel is distended with fluid.
=====Pathogenesis=====
* Intestine susceptible to neurogenic damage during an operation.
* Peristalsis fades away over a few days producing paralytic (adynamic) ileus.
* Particularly occurs if bowel handled roughly, or if serosa gets cold and dry at surgery.
* Very difficult to start peristalsis again but will sometimes respond to pharmacological or electrical stimulation.
* The horse is very susceptible, and the dog is somewhat suscpeitble.[[Category:Intestines - Functional Obstruction]]