inflamed pericardium associated with valley fever in dogs. Has anyone experienced their dog going through an enlarged heart due to fluid in the pericardium. I have an 8 year old British Fox hound who was diagnosised a while back with Valley Fever, her titers just tested negative but we had returned to the vet due to excessive panting. X rays revealed an enlarged heart, in which the vet says is edema, gave me some diuretics and sent us home, night time she isnt sleeping and pants excessively, anyone have a suggestion, please?! I hate seeing her like this.