Changes

*prolonged recovery from sedation or anaesthesia

*prolonged recovery from sedation or anaesthesia

*polyuria and polydipsia in 33% of cases

*polyuria and polydipsia in 33% of cases

====Cat====

====Cat====

*Abdominal radiography shows microhepatica and often renomegaly.  Renomegaly may relate to an altered splanchnic blood flow or to an increased metabolic activity of the kidney due to hyperammonaemia.  These findings in a young dog are highly suggestive of [[Portosystemic Shunt]].

*Abdominal radiography shows microhepatica and often renomegaly.  Renomegaly may relate to an altered splanchnic blood flow or to an increased metabolic activity of the kidney due to hyperammonaemia.  These findings in a young dog are highly suggestive of [[Portosystemic Shunt]].

*Confirmation of a [[Portosystemic Shunt]] requires visualisation of the shunting blood vessel.  This may be done with either ultrasonography or contrast portography or at surgery.

*Confirmation of a [[Portosystemic Shunt]] requires visualisation of the shunting blood vessel.  This may be done with either ultrasonography or contrast portography or at surgery.

==Treatment==

==Treatment==