What is going on with my horse?

Had my “new” guy almost a year. Well, I’ve owned him for a year but it took forever for him to get from Germany to me. He arrived skinny and unsettled, but with slow consistent work and nutrition, we were making good progress. Some hiccups along the way as he adapted to our climate and footing. Did SI injections late spring because he’d had a couple weird slips/spooks during the lockdown and I couldn’t get the chiro out at that time and he got sore/imbalanced. And one colic in July that landed him in the hospital for almost 4 days, but no surgery. Was schooling 3’ courses easily by late summer. A little jumping at 3’6". Dabbling in 2nd level dressage with some 3rd level stuff thrown in (canter half pass, working on having less of a “hunter change”), and even trying a couple steps of canter pirouette for strengthening his long body. Did a schooling show pre-shutdown and a local show in late August at baby green level, trying to learn the hunter thing. Horse is 8yo gelding with experience to 1.25m in Germany. I did a very thorough PPE including full radiology report from CSU.

This summer, he wasn’t sweating the greatest, and had some exercise intolerance. Couldn’t seem to get him very fit. Would huff and puff a lot. Did short and to the point rides in early morning, and that seemed to help. Tried OneAC with no effect. Got him to be better at drinking water with powdered Gatorade (blue is his favorite).

At the August show, in schooling, I screwed up and was riding to no distance and just did nothing. He left long, cleared the jump fine (was a baby jump) but had a hard rub and on landing got tangled up in the old felt footing at that venue, scrambled for a few strides then went down. Seemed to have hit back of left front leg with left hind. Got a nose full of sand, nearly squished me, but we both came out of it ok. I checked him over closely and we continued on with the show (3 classes and a flat) and he seemed fine aside from being nervous. He’s a good boy and doesn’t hold grudges. The tiny cut on the left front got infected a few days later, but cleared up fine with antibiotics. Vet checked him at this time and he was sound. Since we were both banged up, I took it easy for a little while with light hacks and walks and eased back into it.

2.5-3 weeks later, things start going poorly. Beginning with grinding his teeth in the canter, especially right lead and later on in the work. Collecting the canter on either lead made him tense and crunch on the bit. Was having a touch of trouble with lead changes. Hind feet looking a little bullnosed. Sore behind. A week or so later, he is starting to be unwilling to canter, especially right. Wants to be very long and low and pretty much off contact. Anxious and teeth grinding. Does this in different tack/saddles. Starts getting swollen glands around throatlatch and guttural pouches. Worse in the morning. Reduces some with exercise. Equal both sides, and comes and goes as far as size. No temp, no nasal discharge. We are getting a lot of smoke from wildfires, but August also hadn’t been that great as far as air goes either.

Lameness evaluation unremarkable, but LH looks a little iffy although flexes fine. Hocks do not have OA but there’s some sclerosis around the lower joints which can be associated with pain. No signs of PSD. SI area sore. Take hind foot films and plantar angle a little flat. Inject hocks and plan to tweak feet at upcoming trim. Ridden exam vet thinks he is off in front, but to me he was just pulling and rooting down so much that he was dumping on the forehand unevenly. Seemed weird for him to be loading his front feet more if he was off there. No front limb lameness without a rider. They ask me to canter in a way to replicate the teeth grinding. Is so on the forehand and leaning on the bit that when I pull him up from canter to poop, he trips and goes to one knee.

Also due for dental and has thorough exam that shows nothing out of the ordinary.

Farrier makes changes all around. Tripping greatly improved. Posture improved. Chiro recheck shows much less body soreness. Now he’s just forging like mad, so farrier coming back out to look.

Has another colic, this one mild, possibly impaction but no Dx clear, even with bloodwork and ultrasound. Started on Gastrogard. Teeth grinding stops.

Starts coughing under saddle and doing the extreme leaning/stretching out in the warmup. Also clearing his nose a lot. Canter still terrible. Static upper airway scope is unremarkable, including a look in the guttural pouches. BAL shows signs of mild RAO as well as EIPH. Vets have not prescribed anything for this. Just say it’s mild and maybe it will resolve on its own.

In the meantime, it’s getting colder here and horse is overweight and wild but can’t actually work enough to make him fitter or feel better. I’m trying to keep him moving some to at least keep the guts working, but it’s frustrating because he doesn’t seem to warm out of the need to extend his neck and blow his nose or act like he needs to clear his throat. He is frustrated. I’m frustrated. He is trying to be a good boy. He can’t be ridden on contact, doesn’t want to round. If I can get a halfway decent canter I can’t maintain it. Trot isn’t awful all the time but he is not himself at all. He has a couple kind of close spines in his lumbar. So I think that’s it. Then I think it’s neck because contact/head position seems to matter. Then I think it’s allergies because of his swollen throat. Or maybe it’s airway because they breathe differently in canter than trot.

I have a huge team of vets and no one is giving me a plan for what to do next. Only thing that I am confident is ruled out is teeth–my dentist is excellent and took a very close look. Do I get a nebulizer? Do I do antihistamines? Try a Robaxin trial? Ultrasound his lumbar or base of the neck (we couldn’t really see much past C6 on Xray due to his conformation but radiologist thinks that it’s unlikely for him to have a major problem at C7-T1 given how pristine the rest of his neck is). Does he have a soft tissue something in his body from that fall? But why is his throat swollen? Only thing I am doing for sure is continuing the Gastrogard treatment–we are in week 3 now. And with farrier plan for the feet part.

Next week I have a phone consult with an internal medicine specialist from California who is familiar with airway diseases as well as the effects of wildfire smoke.

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How frustrating! Sounds like a few things going on at once, which makes it more difficult to find and hit the target.

From what you’re sharing, I’d be curious if the wipe out didn’t tear/stretch something in his SI, or maybe he’s just due for another injection. I’d also consider an ultrasound. FWIW, my horse (who shows up on other postings from me) was grinding like a madman, and what do you know - he got better when he was on GG after about 10-12 days. But, what might have been happening is that the lower level work while on GG did not make him as uncomfortable. I just recently did an SI injection with IRAP and the ride today was a gift from the gods. He hasn’t felt this good in the past 3 years. I am ever more convinced that the pain is causing his ulcers. Also wanted to mention that he was formerly very fussy about taking the connection and his mouth was very active; today he simply leaned in to the bit and carried me with his neck JUST where it should be.

For the breathing, it does sound like what I experienced with RAO with an older horse of mine, and I would try antihistamines to see if it improves it before next round of diagnostics. I did not see his situation improve with weather changes, but the antihistamines did help.

I am shocked you continued on at a show after having a horse fall. Horses do not want to fall. I understand stuff happens, but a fall is serious. I would not be getting back on and continuing to show after a fall.

I think this horse needs a holiday. A nice long one. I would suspect there is something going on neurologically, the symptoms remind me a bit of headshaker syndrome. There is a good podcast done by Dr Audrey Declue that I would recommend listening to; https://declue-equine.com/about/. Not sure where you are but she is someone I would reach out to. She is very good at looking at the whole horse as a picture.

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I was also going to suggest a long holiday on pasture in a compatible herd.

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You never can go wrong with time off IMO. Let him decompress and be a horse for a while. Frustrating as it maybe to your riding time.

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Both colics occurred on days I didn’t ride, in the afternoon after he’d just stood around in turnout and didn’t drink enough. I am trying to keep him going at least lightly as much for his health as my wants.

My last horse was a headshaker. This behavior is not similar.

Maybe PSSM? That might explain why when he’s going good he’s going great but when he’s less active he doesn’t go as nicely. As for the coughing, idk where you are but if you’re near fires this wouldn’t surprise me. I am and mine coughs during her warmup as well and then after 5 minutes of trotting on the buckle she’s fine. I just let her stretch her neck out and clear her throat and once she finishes she’s ready to go into some contact.

Possibly something like PSSM, because he’s always been a little stiff in the back after a day or two off. Dr. Valberg just partnered with KER for a new MFM supplement which is interesting. I did put him on Triple Crown Gold Balancer this summer for the BCAAs in the whey protein to see if that would help his performance and energy without feeding him too many calories, and he was doing well enough. He’s on the younger side for doing a muscle biopsy.

The thing is he never seems to truly finish clearing his throat/nose. Prior to the past few weeks, he rarely coughed or did any of that at all even in the warmup. I am sure the fires are a factor. I’m not sure what other allergens we have going right now other than dust. The cottonwoods didn’t bloom this year, which was my other horse’s late summer allergy trigger. Some of the hay has been dusty, and I’ve been doing a quick soak when I can. I am not riding him when the air quality index is poor. We did have a fair amount of smoke before the show in August (I only went to the show because a front came through and cleared things up and gave us a break from the heat), and while he still had trouble working very long and would huff and puff in the heat, he was still himself at that time. When the vets did the airway exams, the air was bad and he did have to exercise some then so they could listen to him. My throat sure hurt, but I wouldn’t say his behavior was any worse than it’s been since then on good air quality days.

Haven’t splurged on a steamer yet but will have the opportunity to try some steamed hay later this winter. We are heading south in December for a while. The vets think the change in climate will do him good. Except that I will be coming back here, so if this is going to be an ongoing thing, I need to figure it out.

That is what some of that sounds, a metabolic issue, adding possibly some injury to it, maybe other like allergies?

We had one horse that did some of that.
He was a school and endurance horse, just was grumpy at times and just not himself.
Eventually he tied up in one endurance ride, problem finally found.
We changed his job to strictly a lesson horse on light work and he was ok for some years at that level.

They can test for several of those today, surprised vets had not done that yet, so maybe that is more of the zebra kind of thinking.

It could be that all the coughing has just irritated his throat so much at this point so even after the air clears and it’s not as smoky his airway is still recovering from weeks and weeks of being exposed to the smoke. I think I heard someone point to a study that you’re not supposed to ride for 2 weeks AFTER poor air quality which, where I am at least would be impossible if I wanted to ride at all this summer.

Ugh.

I suspect there’s more than one thing going on here:

  • Something related to the fall since it seems to have gotten worse since then, though there was the slip incident before that which led to the SI injection. That may be a matter of time or more diagnostics (e.g. scintigraphy).
  • Something or more than one thing that's environmental, possibly related to his change of address. Different food, different lifestyle(?), bad air.
Allergies seem to be additive, so having more than one is going to make things worse. The allergies might also exacerbate the response to the smoke or the smoke might (very likely) exacerbate the allergies.

I had a horse who had what appeared to be a series of mild colic episodes. There were ulcers, but he also developed a sort of inflammatory bowel disease (IBD) that showed on ultrasound as thickened intestines. This happened when the horse was going through neck-related lameness and I still wonder if the stress from that somehow got the other stuff going. I also wonder if a horse will allergies would be more prone to IBD.

Falling always concerns me. Horses don’t like to fall. The horse that is the subject of the previous paragraph (Star, if anyone is keeping track of my series of lame horses), was trippy from the time he was started under saddle in 2002, when people didn’t think so much about neck issues. For years we thought he was just a klutz.

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I am surprised your vets didn’t recommend anything for the coughing. I would definitely try antihistamines to see if they make any difference. Cetirizine (generic Zyrtec) is pretty inexpensive. Soaked hay didn’t help my horse with respiratory issues, but steamed hay made a huge difference for her, so it is definitely worth trying out.

The rest just sounds extremely frustrating, and I hope you can figure out what’s causing the issues. I’m still struggling with my horse’s LH lameness so I feel your pain.

After my experience with the last horse I had a board certified radiologist review his neck xrays on pre-purchase so they are thinking that is low on the list. I wouldn’t be surprised if he had an upper thoracic or even shoulder issue. Saddle fit was a nightmare and the wrong one would make him head bobbing lame. He has one slightly crooked withers process. And a shark fin. And it’s very sensitive apparently. He was also ridden quite crooked before. All of that has improved with slow conditioning and working on saddles.

Unfortunately I do also blame the footing. It was supposed to be replaced years ago and wasn’t. And it just wasn’t right that morning for schooling. He was interfering a lot in ways he never had before. But he schooled well the day before so I was just like huh, that’s weird. Same exact chain of events happened to another rider at a show in that ring 2 weeks later. Honestly I screwed up so bad that if it had been a large fence we might have had a rotational fall so he actually probably did save our butts. The going to the knee several weeks later for the vets was much more alarming to me, but at that time they thought his hind end was too sore to get under himself especially since he was starting the throat posture and leaning on the bit. They wanted to give hocks and feet a chance to do something.

I will say that even though when he leans and stretches out so much I am very mindful of balancing, he isn’t tripping anymore. Have I been able to stop without thinking we are going to face plant since his hock injections and new trim were done? Yes. Is his posture and elevation and impulsion normal? No.

The air quality rating is off the charts here tonight. Not good for any of them and no precipitation expected anytime soon. He has not been coughing at rest and he doesn’t have a heave line or have wheezing or crackling. Does not have noticeable increased respiration at rest. So he’s not full blown RAO, but I don’t want it to get there either.

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Were the neck xrays from before the fall or after? To me it sounds like neck. My horse has fairly significant (according to my vet) arthritis in his neck and he behaves similarly to what you describe even when he’s not being ridden. keeps his neck straight and out from his body, walks with his head quite still, can’t tolerate contact anymore if ridden, constantly blows his nose. When he’s walking it’s almost like he’s trying to balance an egg on top of his poll and not lose it.

When the arthritis developed, the difference in his way of going was quite clear. He used to be a big mover but lost most of it.

If it were me and the neck xrays you have are from before the accident, I’d xray it again and see if anything has changed

Edited to add: he’s also lost the moment of suspension in the canter even on the lunge. He has at least 2 feet on the ground at all times and sometimes all 4 are on the ground at once. It’s very discombobulated to look at. That’s a pretty new development though so I think that probably comes with advanced arthritis, not in the early stages.

They were before but less than a year old. He seems normal on the longe and being led. He’s trying more to put his nose on the ground, leaning on the bit. He can still do all of the carrot stretches normally and has good range of motion. Significantly better than my neck horse ever did. I would think he’d have to have a fracture to develop OA from trauma. More likely to be soft tissue damage. And from what I understand, a neck fracture would have presented quite painful from the outset which he hasn’t exhibited at all even on chiro evaluation less than a week later. He was muscle sore on the underside of his neck, sore in the psoas, hips and hamstrings. All of that has improved with last check showing some tightness in triceps and around the SI.

I do wonder if he had some sort of another slip type thing in transit since he’s the kind of horse to do the Bambi legs when he’s scared. But it just seems like a coincidence for it to be a major SI flare at the same time as something else, and aside from cantering anxiety it’s not presenting like SI.

The vets thought SI ultrasound would be of little value. Kind of learned that with my other horse who had really terrible looking SI joints on necropsy and had a very unremarkable rectal ultrasound. It could rule out a disc problem but that seems very low on the list.

The hind end things do look a little like my friend’s horse with lumbar arthritis. I haven’t looked at those joints yet because we can’t see them on X-ray since his ribs are sprung like a shelf.

But none of it makes sense for the front end. Or why canter is significantly worse to the right under saddle which is his less dominant lead but always had been the more balanced lead. But I suppose if the sports vets do come back with an ultrasound we can just ultrasound the whole spine. They aren’t even sure what to do.

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I read through, and I apologize if I missed it, but have you looked at soft tissue? Suspensories and whatnot.

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Maybe you have two separate things going on? Allergies and what ever is happening with the canter. You mention that he was super sensitive to saddle fit before. Have you had it rechecked since he’s gained weight and been in a different level of work?

Look up C6-C7 cervical malformation on Google. I’d be getting his neck looked at!

I am very familiar with this condition. We would have seen the transposition on the X-rays we have