Atypical Myopathy – Symptoms
A horse which has ingested Sycamore is likely to present with some or all of the following symptoms;
- Lethargy – reluctance to move – resulting in recumbrance,
- Loss of appetite
- Brown urine
- Increased heart rate / respiratory rate
- Muscle Tremors
- Low head Carriage
- Sweating / feeling cold
- Difficulty breathing
If you suspect Atypical Myopathy call your vet immediately. A rapid blood test will be able to confirm if your horse has been affected.
Sadly if your horse is suspected of having Atypical Myopathy the prognosis is not good, only 1 horse in 4 is likely to survive. The toxin acts by damaging the striated muscle (the muscles allowing the horse to stand and breathe), preventing energy being produced, and can also affect the muscle of the heart. If caught early and the horse is given extensive fluids by a vet to flush out their kidneys they may pull through and the longer they survive the better their chances. Some horses react worse than others, deteriorating quicker than others, so acting quickly is vital to give your horse the best possible chance of survival.