Identification of risk factors for septic peritonitis and failure to survive following gastrointestinal surgery in dogs.
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OBJECTIVE: To identify risk factors for failure to survive and development of septic peritonitis following full-thickness gastrointestinal incision in dogs. Design-Retrospective cohort study. ANIMALS: Dogs that underwent gastrointestinal surgery from 1998 through 2007 at the University of Georgia Veterinary Teaching Hospital. Procedures-Medical records of dogs undergoing a full-thickness gastrointestinal incision were reviewed, and information regarding dog history, clinicopathologic findings, surgery characteristics, and outcome was collected. RESULTS: Records for 197 dogs (225 surgeries) were evaluated. In 35 (16%) surgeries, the dogs died prior to hospital discharge. After 28 (12%) surgeries, dogs developed septic peritonitis. For 45 (20%) surgeries, dogs had preoperative septic peritonitis; of those, approximately a third resulted in continued septic peritonitis (17/45; 38%) or death (15/45; 33%). Of the 180 surgeries performed in dogs lacking preoperative septic peritonitis, 11 (6%) resulted in development of septic peritonitis and 20 (11 %) resulted in death. When all surgeries were considered, common risk factors for development of septic peritonitis included preoperative septic peritonitis, low preoperative serum albumin and plasma protein concentrations, and intraoperative hypotension. Presence of a foreign body was a protective factor. CONCLUSIONS AND CLINICAL RELEVANCE: Multiple factors were associated with failure to survive and development of septic peritonitis after gastrointestinal surgery in dogs. Aggressive perioperative attempts to increase protein concentrations and intraoperative surgical strategies to decrease the chance of a poor outcome may be indicated in dogs with risk factors identified in this study.
