The prognosis for horses with signs of hepatic encephalopathy is extremely poor with a mortality rate approaching 88%. Horses that survive for a week after the onset of clinical signs may recover. A fall in SDH is associated with a better prognosis. | The prognosis for horses with signs of hepatic encephalopathy is extremely poor with a mortality rate approaching 88%. Horses that survive for a week after the onset of clinical signs may recover. A fall in SDH is associated with a better prognosis. |