Abdominal abscesses in adult horses: 61 cases (1993–2008)
2012
Arnold, Carolyn E. | Chaffin, M Keith
Objective—To determine clinical signs, diagnostic methods, treatment, and outcome for a series of adult horses with abdominal abscesses. Design—Retrospective case series. Animals—61 adult horses. Procedures—Medical records of adult horses with abdominal abscesses treated at Texas A&M Veterinary Medical Teaching Hospital (1993 to 2008) were reviewed. Information was recorded regarding signalment, history, clinical signs, diagnosis, treatment, and short- and long-term outcomes. Risk factors for survival were determined. Results—61 horses met the criteria for inclusion. Clinical signs included colic (67%), fever (46%), anorexia (51%), signs of depression (57%), tachycardia (46%), and weight loss (30%). The diagnosis was made on the basis of abdominal ultrasonography, exploratory celiotomy, palpation per rectum, and necropsy. Abscesses were variable in size, location, and number. Only 15 (24.6%) horses survived to discharge. Multiple bacterial isolates were identified from aspirates of abscesses, and subsequent abdominal adhesion formation limited survival, affecting outcome. Risk factors for survival included age and heart rate at admission. Conclusions and Clinical Relevance—Adult horses with abdominal abscesses often have severe adhesion formation. Multiple bacterial isolates are frequently identified from the abscess. Prognosis for survival is guarded.
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