Author, Donkey, Bureaucrats, Administrators
53,803
edits
Changes
Intestinal Arterial Thromboembolism (view source)
Revision as of 13:07, 1 June 2010
, 13:07, 1 June 2010Created page with '* Non-strangulation infarction. * There is often a functional obstruction at point of infarction. * Relatively rare as the bowel has a good anastomosing blood supply. [[Image:str…'
* Non-strangulation infarction.
* There is often a functional obstruction at point of infarction.
* Relatively rare as the bowel has a good anastomosing blood supply.
[[Image:strongylus vulgaris.jpg|thumb|right|150px|Thrombosis of cranial mesenteric artery caused by Strongylus vulgaris larvae (Courtesy of Bristol BioMed Image Archive)]]
===Horses===
* E.g. [[Strongylus vulgaris|'''''Strongylus vulgaris''''']] larvae migrating in cranial mesenteric artery in horse
** Cause arteritis with thickening of wall
*** Due to fibrin and debris deposition and hypersensitivity reaction
** Leads to vasoconstriction
*** May occlude lumen and encourage thromboemboli.
** Can cause ischaemic necrosis of a segment of [[Small Intestine - Anatomy & Physiology|small intestine]]
** Is less common now that [[Strongylus vulgaris|'''''Strongylus vulgaris''''']] infections are declining.
* E.g. '''equine''' [[Intestines Fibrinous/Haemorrhagic Enteritis - Pathology#Salmonellosis|'''salmonellosis''']].
[[Image:Infaction of the small bowel.jpg|thumb|right|150px|Infarction of the small bowel (Courtesy of Bristol BioMed Image Archive)]]
===Small Animals===
* Especially dogs
* '''Road traffic accidents''' produce and infact in the gut.
* '''Renal disease''' also causes infarction.
** Particularly nephrotic syndrome.
** Anticoagulant proteins are lost in the urine, leading to a prothrombic state in the ciruclation.
===Pathology===
* Similar to that caused by venous congestion.
* See sharply delineated dark areas in bowel that are flaccid with loss of tone.
** These become necrotic followed later by peritonitis.[[Category:Intestine_-_Vascular_Disturbances]]
* There is often a functional obstruction at point of infarction.
* Relatively rare as the bowel has a good anastomosing blood supply.
[[Image:strongylus vulgaris.jpg|thumb|right|150px|Thrombosis of cranial mesenteric artery caused by Strongylus vulgaris larvae (Courtesy of Bristol BioMed Image Archive)]]
===Horses===
* E.g. [[Strongylus vulgaris|'''''Strongylus vulgaris''''']] larvae migrating in cranial mesenteric artery in horse
** Cause arteritis with thickening of wall
*** Due to fibrin and debris deposition and hypersensitivity reaction
** Leads to vasoconstriction
*** May occlude lumen and encourage thromboemboli.
** Can cause ischaemic necrosis of a segment of [[Small Intestine - Anatomy & Physiology|small intestine]]
** Is less common now that [[Strongylus vulgaris|'''''Strongylus vulgaris''''']] infections are declining.
* E.g. '''equine''' [[Intestines Fibrinous/Haemorrhagic Enteritis - Pathology#Salmonellosis|'''salmonellosis''']].
[[Image:Infaction of the small bowel.jpg|thumb|right|150px|Infarction of the small bowel (Courtesy of Bristol BioMed Image Archive)]]
===Small Animals===
* Especially dogs
* '''Road traffic accidents''' produce and infact in the gut.
* '''Renal disease''' also causes infarction.
** Particularly nephrotic syndrome.
** Anticoagulant proteins are lost in the urine, leading to a prothrombic state in the ciruclation.
===Pathology===
* Similar to that caused by venous congestion.
* See sharply delineated dark areas in bowel that are flaccid with loss of tone.
** These become necrotic followed later by peritonitis.[[Category:Intestine_-_Vascular_Disturbances]]