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>.
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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
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===Clinical signs===
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* Severe, unrelenting abdominal pain that is non-responsive to analgesia
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* Tachycardia
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* Tachypnoea
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* Reduced/absent borborygmi
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* Dehydration
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In addition to the above signs, signs relating to endotoxaemia may be present including prolonged capillary refill time, congested mucous membranes.