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====Pathology====
====Pathology====
The degree of damage to the intestine depends on the severity of the intussusception. In severe or chronic cases fibrinous adhesions form between surfaces making the structure irreducible. Necrosis of the tissue usually follows.
Intussusception may occur due to post mortem change, in this case there are no other associated changes and the invaginated intestine is easily reducible.
===Surgery===
===Surgery===
[[Fluid Therapy|Fluid therapy]] and correction of any electrolyte and acid-base derangements should be carried out as soon as possible. Surgery is usually required to manually reduce or resect and anastomosis or both. This decision depends on the viability of the intestines, as determined by the colour, vascular supply and presence or absence of peristalsis. Risks of complications include dehiscence of site of anastomosis, [[Peritonitis - Cats and Dogs|peritonitis]], recurrence (11-20%, most common within 1-5 days post surgery), ileus, intestinal obstruction and [[Short Bowel Syndrome|short bowel syndrome]]. Recurrence can be treated with motility altering drugs or intestinal pexy or plication. It is important to preserve as much of the intestine as possible to avoid [[Short Bowel Syndrome|short bowel syndrome]].
[[Fluid Therapy|Fluid therapy]] and correction of electrolyte and acid-base derangements should be carried out prior to surgical correction. Surgery is usually required to manually reduce or resect and anastomosis or both. This decision depends on the viability of the intestines, as determined by the colour, vascular supply and presence or absence of peristalsis. Risks of complications include dehiscence of site of anastomosis, [[Peritonitis - Cats and Dogs|peritonitis]], recurrence (11-20%, most common within 1-5 days post surgery), ileus, intestinal obstruction and [[Short Bowel Syndrome|short bowel syndrome]]. Recurrence can be treated with motility altering drugs or intestinal pexy or plication. It is important to preserve as much of the intestine as possible to avoid [[Short Bowel Syndrome|short bowel syndrome]].
==Prognosis==
==Prognosis==
This depends on the location, completeness and period of the intusussception. The prognosis is good in animals treated with early surgical intervention and aggressive supportive care. The prognosis is worse for animals with perforated intestine and [[Peritonitis - Cats and Dogs|peritonitis]].
This depends on the location, completeness and duration of the intusussception. The prognosis is good in animals treated with early surgical intervention and aggressive supportive care. The prognosis is poor for animals with perforated intestine and [[Peritonitis - Cats and Dogs|peritonitis]].