Myopathy

[Shoei]

Hi Guys
Talk to me about Myopathy!

So one of the horses on the yard was taken ill Friday night, tied up symptoms, pulse of 60, reluctant to move sweating. Eating and drinking okay, passed dark urine. Vet didn't see the need to come out, came out 1st thing sat morning and ran bloods. Horse had picked up a bit in the night. I asked about possible PSSM. The horse is new to owner 12 year old IDxTB, so no history, not done much and in my opinion is quite under muscled.
Vet said possibility. Bloods came back and was admitted with poss atypical myopathy.
She's responding well to treatment but they are still saying atypical myopathy likely. Does anyone no if tests for atypical myopathy differ from other forms of myopathy?
Many thanks

 

[nagblagger]

No experience, but i am so disgusted that the vet thought it didn't need an emergency call out friday night.

 

[HashRouge]

We had one (not mine) come down with sycamore poisoning last year, we think picked up on a previous yard as he'd literally just moved and we don't have any sycamores. The vet was also very slow to come out and he was really quite poorly by the time they did. I disapproved quite strongly with a lot of the decisions made regarding his treatment, but he did pull through, by some miracle. He was never admitted to the equine hospital and treated on the yard instead, but that was not a good decision in my view.

 

[Shoei]

Luckily once the vet came out it was quick results and quick to get her into hospital! I would just have expected her to pick up the first night and deteriorate much quicker with AM. Luckily she seems to be responding really well, so fingers crossed she's on the mend. I'm just aware managing other forms of Myopathy requires different methods, hence why I was wondering about how they test.

 

[skint1]

I lost my horse to this in 2015, I would say that quick intervention is key, so glad the horse is doing well and wishing them a full recovery

 

[ycbm]

It's not sycamore poisoning, btw. It's hypoglycin A poison which is only present in some sycamores and even then at different rates. It sounds like an atypical myopathy case at a relatively low dose. The acute cases often die in hours.

I hope the mare recovers, the vet's reaction was shocking with those symptoms. .
.

 

[Britestar]

I had one with an aytpical myopathy in 2014. He was kept at home as far too poorly to move anywhere.
It took 6 weeks of intensive care to get him back on track, and then he foundered in all 4 feet with toxic laminitis .

Took another year to get him back to some sort of normality, and a total of 18 months to get back on him.

He went back to full work, but was micro managed.

Hes still going at 21 yrs old, but dors have issues now due to the illness.

 

[PinkvSantaboots]

I'm also disgusted the vet didn't feel the need to come out I certainly wouldn't use them anymore, it's seems some vets are taking after many of our GP's attitudes of giving advice over the phone,

A breeder I knew years ago had 3 horses in a field with this, one was already dead her other mare was saved but a liveries horse also died so I think early treatment is what saves them, this was before they knew very little about the condition as it was quite rare back then.

 

[Spotherisk]

I had one with an aytpical myopathy in 2014. He was kept at home as far too poorly to move anywhere.
It took 6 weeks of intensive care to get him back on track, and then he foundered in all 4 feet with toxic laminitis .

Took another year to get him back to some sort of normality, and a total of 18 months to get back on him.

Mine was AM, didn’t travel so treated at home, foundered in all four, three months box rest, sort of came right but five years later was pts - couldn’t keep the weight off him and so many other issues meant it couldn’t be managed.

I hope the OP’s friends horse is okay.

 

[ILuvCowparsely]

My late mare was diagnosed with muscle Myopathy.

She had been on competition mix and such while she was young and I was working her, but she must had had too much protein.

She was about 6 or 7 - and I noticed in the school she started to buck in canter. This she never did as she was not a bucker. Gradually over the weeks she began to buck in trot then walk. I called the vet out and she did a blood test and said she had myopathy, she was leaking creatine from her muscle and was in a huge cramp all over. 3 months total box rest and then gradually brought back into work. I never made this mistake again and never left her more than 2 days without work and refuse to give any of mine any kind of mix now.

 

[Dexter]

My late mare was diagnosed with muscle Myopathy.

She had been on competition mix and such while she was young and I was working her, but she must had had too much protein.

She was about 6 or 7 - and I noticed in the school she started to buck in canter. This she never did as she was not a bucker. Gradually over the weeks she began to buck in trot then walk. I called the vet out and she did a blood test and said she had myopathy, she was leaking creatine from her muscle and was in a huge cramp all over. 3 months total box rest and then gradually brought back into work. I never made this mistake again and never left her more than 2 days without work and refuse to give any of mine any kind of mix now.

I'm sorry but that is not how it works, and 3 months box rest is the worth thing you can do with any horse suffering from a muscle myopathy, which is different in cause and treatment from the myopathy associated with sycamores.

 

[ILuvCowparsely]

I'm sorry but that is not how it works, and 3 months box rest is the worth thing you can do with any horse suffering from a muscle myopathy, which is different in cause and treatment from the myopathy associated with sycamores.

Yes I know it is not the same as acorns, her Myopathy was a lesser for or Azoturia, sorry I got one thing wrong (this was 1992 old brains) -it was 3 months off work not box rest, I have box rest on the brain as one her is on box rest.

The reason I posted was because the Op called the title Myopathy - which is what my mare had Myopathy https://www.msdvetmanual.com/muscul...ies-in-horses/exertional-myopathies-in-horses.

She had many injections and treatment for it.


Only when I read further did I see it was Atypical Myopathy. to with Sycamores. It is like colic, many causes many symptoms.

 

[Shoei]

Just to clarify the vet has said it is a Myopathy, sycamores are a possibility, but they can't say 100% so any Myopathy experience is very much appreciated.