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Small Intestine Volvulus - Horse (view source)
Revision as of 15:42, 2 August 2010
, 15:42, 2 August 2010no edit summary
===Description===
===Description===
A small intestinal volvulus occurs in the horse when the intestine rotates on its mesenteric axis through an angle greater than 180<sup>o</sup>, resulting in strangulation. Volvulus may occur as a primary cause of colic or secondarily as a result of another condition such as epiploic foramen entrapment, incarceration within the mesentery or adhesion within the abdomen.
A small intestinal volvulus occurs in the horse when the intestine rotates on its mesenteric axis through an angle greater than 180<sup>o</sup>, resulting in strangulation. Volvulus may occur as a primary cause of colic or secondarily as a result of another condition such as a lipoma, incarceration within the mesentery or adhesion within the abdomen.
===Signalment===
===Signalment===
===Diagnosis===
===Diagnosis===
Diagnosis is made on the above clinical signs and a combination of confirmatory tests. Large volumes of nasogastric reflux may be obtained; greater than 2L of fluid with a pH greater than 5 is considered abnormal. Rectal examination may indicate multiple distended loops of small intestine, a finding that usually indicates the need for surgical intervention. Ultrasonographic examination often reveals a distended, oedematous, fluid-filled small intestine proximal to the strangulated segment. The intestinal wall is hypoechoic and peristaltis may be absent.
Diagnosis is made on the above clinical signs and a combination of confirmatory tests. Large volumes of nasogastric reflux may be obtained; greater than 2L of fluid with a pH greater than 5 is considered abnormal. Rectal examination may indicate multiple distended loops of small intestine, a finding that usually indicates the need for surgical intervention. Ultrasonographic examination often reveals a distended, oedematous, fluid-filled small intestine proximal to the strangulated segment. The intestinal wall is hypoechoic and peristalsis may be absent.
===References===
===References===
McIlwraith, C. W., Robertson, J. T. (1998) '''McIlwraith & Turner's Equine Surgery:
McIlwraith, C. W., Robertson, J. T. (1998) '''McIlwraith & Turner's Equine Surgery: advanced techniques''' ''Wiley-Blackwell''
advanced techniques''' ''Wiley-Blackwell''
[[Category:Surgical Colic in the Horse]]
[[Category:Surgical Colic in the Horse]]
[[Category:To_Do_-_SophieIgnarski]]
[[Category:To_Do_-_SophieIgnarski]]