Question Details
Meningoencephalitis Of Unknow Etiology In A Dog
by equinesportsmed - May 17, 2020    View Case Report
This case was treated at Cornell neurology on 4/20/20, and responded very well to high dose pred (1 mg/kg split daily) and a pop of IV Cytosar, a chemo level immunosuppressive drug. Condition started with vestibular signs and progressed to obtundation and complete paresis. When I saw her on 5/4, she was BAR, completely ambulatory with a residual very mild ataxia in hind end, revealed with tendency to stand base wide, and slight wobbliness in tight turns. I thought she was slightly hyper metric in LH, but owner says "she tends to be prancy"-- sign of underlying cerebellar problem? On that day, her tongue was bright pink and pulse seemed superficial and slightly bounding-- but perhaps I was influenced by how much pred she was on. She tends to run hot, has been drinking like crazy since the meds, and was leaking urine a bit, but owner has resolved that by keeping her away from water at night.

Here is the tricky bit-- autoimmune or toxic? This dog is a mouse hunter, and eats her catch. A neighbor used mouse bait containing bromethalin, a known neurotoxin causing brain swelling (https://www.animalhealthfoundation.net/blog/2013/03/owners-beware-poisoning-from-this-rodenticide-is-tough-to-treat/), and it is almost certain that she ate some of the local mice. The Cornell neurologist (a resident) pooh-poohed the owners concerns on this, and wants to treat the dog with a lifetime of immunosuppressive steroids-- is convinced the cytosar is the reason for her excellent response.

When I saw Trudy, she looked fantastic, so I wanted to address the presumed autoimmune component of her disease-- started her on a fresh food diet, Pentagenesis (deer antler velvet with colostrum and thymus), Plena Curae Curcumin & Boswellia, and recommended a Panacur "detox"-- double dose fenbendazole, repeat in two weeks. I was also thinking that a microbiome replacement treatment was in order.

I met with the client (but did not see dog) again after her Cornell recheck on May 12 (attached neurologist's report to the case file) she was much the same, no marked improvement or degeneration. Neurologist tried to pressure owner to double the pred dose or add on another steroid, but owner refused. The parasitic serology was equivocal, so they opted to run it again, and keep her on clindamycin in the meantime. Of course, I can't do MBRT while she's on antibiotics. I added Beta-Thym, a beta-sitosterol supplement at that time.

After reading on CAVM about some folks successfully resolving MUE with homeopathy or herbs, I am second guessing my approach of focusing on immunomodulation. It is clear the neurologist expects the dog to relapse when the long-acting immunosuppressant wears off-- which will be 6 weeks from 4/20, so towards the end of this month. If the episode actually had a toxic etiology, then she should never look back. Meanwhile, the neurologist will pressure her to keep up the steroids, and her iatrogenic damp heat will worsen as summer comes on.

Is there any way to figure out a management direction for this dog without letting her symptoms recur? I never saw her with acute symptoms, so would have to choose homeopathic or herbal therapy based upon others' descriptions of her unmedicated state. I know the neuro resident wants to keep her on high dose pred at least another six weeks, but we could switch her management to my colleague Curtis Dewey, who is also a Cornell neurologist, but does TCM in his private practice (Chi guy), so is presumably less rigid in his thinking. Should I start reducing the pred and see what emerges? I saw here that a previous case did great on Chai hu blah blah blah, but that dog ultimately had a brain tumor (MRI on this case showed inflammation/swelling but no tumor).
Replies
by naturevet
May 22, 2020
Hi there,

I have yet to see a case of this (having treated dozens over the years) that does not fully and permanently resolve on Chai Ge Jie Ji Tang. It provides the immune modulation effect that is needed, rather than the one-sided immune suppressive effect the drugs are currently providing. Improvement is usually quite rapid, within a few weeks, to be sure. Sometimes there are follow up formulas that are needed, such as Kidney tonics, in the more severe cases, but this is not necessarily a rule.

The pulse you felt and the 'side effects' of the pred are both typical of what is seen in CGJJT. To confirm that the approach will work, assess the improvement of the pulse when you tonify GB points like GB 20. If you see the pulse improve, you'll know this formula is likely to work

Let us know how it goes! If you see the hoped-for improvements, the way is clear to judiciously start removing the immune suppressive medications, while continuing the CGJJT. Eventually, if the dog is off drugs and asymptomatic, you can start weaning off the herbs, too.

There may be an underlying diet issue triggering the immune reaction by altering the microbiome in an unfavourable way. If so, these dogs may especially benefit from Lactobacillus supplementation in tandem with the herbs. The resultant increase in propionic acid in the gut may have a permanent immune modulating effect on the dog that can help prevent recurrence

Steve
by equinesportsmed
May 22, 2020
Fantastic. I have been on the fence on whether to do a full-bore microbiome transfer (Margo sent me a BIG bag of poop!), but maybe wait and see, and just supplement with probiotic. Are you going to start making the granule version of this formula in Natural Path?
by naturevet
May 22, 2020
It's not planned, yet. But the Kan Veterinary Essentials version works fine. We use the liquid version as it is probably a bit stronger and more assimilable. It is a bit bitter, but it can be mixed with broth to blunt the taste. Most owners don't have a huge problem giving it

S
by equinesportsmed
July 16, 2020
No obvious positive response to CGJJT. She was 90% normal before I saw her, just from prednisone treatment and time. Still unclear whether original insult could have been toxic. Holding off second bottle of herbs until she sees Dr. Dewey. He is a Chi guy, so probably will choose a different formula if he puts her on herbs at all.
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