acute peritonitis and death

My perfectly healthy 1y10m dog died within less than 24 hours. On
Wednesday morning she had some infection. The signs were not so severe
(no high fever and no malicious findings on the blood text except for
high count of white blood cells). The doctor gave some painkillers and
antibiotics through injection and liquid transfusion and prescribed
further antibiotics (doxycycline 100mg) in capsules. However, the dog
refused to eat and so she could not get the capsules. On Thursday
morning we took her again to the vet. This time she had high fever. He
gave her the doxycycline through injection and started to severe
liquid transfusion but her brain died only minutes after the pulse and
the blood pressure were found to be OK. Autopsy revealed that the
death was caused by peritonitis, but there is not a clue what was the
precursor of the peritonitis. It might have originated from
Pancreatitits, but the blood examinations do not support this
hypothesis. There is also no sign of physical trauma or accident that
could have impaired the abdomen membrane.

It is now, unfortunately, all post-mortem, but do you have any idea
what could prevented this gloomy result?

Thanks,
Amir

A veterinarian can tell you much more about this than can the non-vets
in this group.

So sorry that you and your lovely young dog had to go through this.

Jo Wolf
Martinez, Georgia