Equine polysaccharide storage myopathy

SIR, – We write in response to Caroline Hahn’s letter regarding equine polysaccharide storage myopathy (EPSM) in horses in the UK ( VR , February 26, 2005, vol 156, p 292).We would disagree with the comment that EPSM is an uncommon cause of equine rhabdomyolysis syndrome in this country, both on