Retrospective Study Evaluating Surgical Treatment and Outcome in Dogs with Septic Peritonitis Secondary to Neoplasia.

Septic peritonitis is a life-threatening disease that can be caused by neoplasia, among other disease processes. There is no veterinary literature directly evaluating the outcome of patients with septic peritonitis caused by neoplasia. The objective of this study was to evaluate for differences in survival to discharge and complication rates between septic peritonitis caused by neoplastic and nonneoplastic disease in canine patients. A single-institution retrospective cross-sectional cohort study was performed, identifying dogs that were treated surgically for septic peritonitis between January 1, 2010, and November 1, 2020. A total of 86 patients were included, 12 with a neoplastic cause for septic peritonitis and 74 with another cause. The most common neoplastic lesions associated with septic peritonitis were gastrointestinal lymphoma and hepatocellular adenoma. Presence of neoplasia was not a significant factor for development of intraoperative or immediate postoperative complications, nor did it decrease chances of survival to discharge (P < .09). The diagnosis of a primary, localized, neoplastic lesion alone should not deter clinicians and owners from pursuing treatment for septic peritonitis.

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