Thanks so much for the additional information although I'm sorry that I was off my computer when you responded back.
I'm not disputing the diagnosis which your vet made since he was able to physically exam Tilly and I can't but it's also possible that she might be experiening what's known as Idiopathic Vestibular Syndrome
since this is a far more commonly seen problem than a vascular event in the brain (which is fairly rare).
This is a condition for which we have no known underlying cause but frequently causes balance issues. The patient's symptoms can mimic other conditions (such as a stroke
) but it would take an MRI to distinguish between the two.
Other possible explanations include an inner/middle ear infection, a brain mass, trauma or a protozoal disease such as Toxoplasmosis. The first two would also require an MRI or CAT scan to diagnosis.
I can't say for sure, of course, but I'm presuming that your vet gave her a steroid injection for any inflammation which might be present in her brain.
Not all vets will treat vestibular diseases or a stroke with steroids but there is obviously individual variation among vets as to treatment options.
If this is a stroke, then she should remain somewhat stable with her current symptoms but may slowly (over weeks to months) improve. She may still experience deficits and may not ever return to 100% normalacy.
If this is Idiopathic Vestibular Syndrome, she should improve within days with a full recovery expected in most cases.
If this is an inner/middle ear infection or Toxoplasmosis, improvement won't be seen until or unless antibiotics are begun.
If this is a brain mass, she may slowly deteriorate, unfortuanately, or remain as she is for a while.
I hope this helps. Deb