Equine Myopathies – PSSM 1 und PSSM 2
PSSM is a collective term or synonym for various forms of genetic myopathies, i.e. muscle metabolic disorders. PSSM stands for polysaccharide storage myopathy, whereby only type 1 (P1) actually describes a actual storage myopathy. Other forms of myopathy are summarised under the synonym “PSSM 2”, since at the beginning of research it was also considered to be a storage myopathy. Nowadays, it is known that “PSSM 2” includes different muscle disorders, with different variants. It is likely that there are other, hitherto undiscovered variants of equine myopathies.
However, what PSSM 1 and PSSM 2 do have in common is their symptomatic nature and the crucial influence proper feeding management plays on the performance and, above all, the well-being of the horse.
Although this condition cannot be cured due to its genetic anchoring, feeding and management are the deciding factors for a painful existence or a life free of symptoms for the horse.