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  • Author or Editor: Xiaocun Sun x
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To identify clinical characteristics of, prognostic factors for, and long-term outcome of dogs with multiple acquired portosystemic shunts (MAPSSs) and determine whether survival time was associated with previous portosystemic shunt attenuation.


72 client-owned dogs with MAPSSs.


Medical records of dogs in which MAPSSs had been diagnosed between January 2000 and August 2018 were reviewed for signalment, historic and diagnostic findings, management methods, and outcome.


Median survival time of dogs (n = 23) that died of causes related to MAPSSs was 580 days (range, 156 to 1,363 days). Factors significantly associated with dying of MAPSS-related versus unrelated causes included body weight, albumin concentration at the first and last recheck examinations, and cholesterol, total solids, and glucose concentrations at the last recheck examination. Dogs not receiving medical management or without signs of depressed mentation at the time of initial presentation were less likely to die of causes related to MAPSSs. Patient status (alive vs dead of causes related to MAPSSs vs dead of causes unrelated to MAPSSs vs dead of unknown causes) was not significantly associated with survival time.


Survival time for dogs with MAPSSs was not shortened by previous portosystemic shunt attenuation surgery and was not different when death was versus was not related to MAPSSs. Dogs with MAPSSs that had progression of biochemical changes consistent with liver dysfunction were more likely to die of causes related to MAPSSs and were unlikely to live a normal lifespan.

Open access
in Journal of the American Veterinary Medical Association