Use of extracorporeal hemoperfusion therapy in an adult horse with Clostridioides difficile colitis and severe systemic inflammatory response syndrome.

An 8‐year‐old American Quarter Horse gelding was treated with extracorporeal hemoperfusion (HP) therapy for treatment of Clostridioides difficile (C. difficile) colitis‐induced systemic inflammatory response syndrome (SIRS). The gelding developed C. difficile associated peracute colitis and severe SIRS as evidenced by a positive fecal C. difficile PCR and tachypnea, tachycardia, fever, neutropenia, altered mucous membrane color, and hyperlactatemia. Concurrent acute kidney injury in the horse limited the use of routine anti‐inflammatory and anti‐lipopolysaccharide treatments, including flunixin meglumine and polymyxin B, because of potential for nephrosis. Extracorporeal HP therapy was performed twice within 48 hours of the onset of severe SIRS during which the horse's physical examination variables stabilized. The horse was euthanized after 4 days because of laminitis. These findings support further investigation of extracorporeal HP therapy as an adjunctive treatment for severe SIRS/sepsis in horses. [ABSTRACT FROM AUTHOR]

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