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EPSM · Equine Polysaccharide Storage Myopathy

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Group Information

  • Members: 777
  • Category: Equestrian
  • Founded: Nov 8, 2000
  • Language: English
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Activity within 7 days:

5 New Members - 21 New Messages

Description

The EPSM/PSSM group is for anyone who owns a horse with EPSM/PSSM or suspects their horse may have this condition.

Polysaccharide Storage Myopathy (PSSM), also referred to as Equine Polysaccharide Storage Myopathy (EPSM), is a common form of tying-up in many horse breeds and is characterized by excessive and abnormal storage of sugar (polysaccharide) in muscle cells.

Horses showing these signs:

• Muscle stiffness, cramping or pain
• Muscle fasciculation (twitching, quivering or spasm)
• Exercise intolerance
• Firm (hard) muscles, especially in the hindquarters
• Lameness, stiff choppy gaits, tripping
• Discolored brown urine (myoglobinuria)
• Progressive weakness
• Difficulty backing up, reluctant to pick up hind legs

may have EPSM/PSSM, which can be confirmed by diagnostic testing through the University of Minnesota Neuromuscular Diagnostic Laboratory.

As more is learned about these neuromuscular conditions, new approaches for managing EPSM/PSSM (and RER or Recurrent Exertional Rhabdomyolysis) through nutrition and training are emerging. Combined with the experience of list members here, you can learn how to apply these approaches to your situation – and regain your equine partner.

New members will have their initial posts moderated to prevent spam and inappropriate material. Advertising, solicitation by private email and selling products or services are not permitted. Please contact the group moderators if you have any question about these policies.

The EPSM group would like to express their thanks to Barbara Harmon at for allowing us to use the image "Equine horse muscle structure by BH Visualart, www.bhvisualart.com"

Message History

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2013 236 203 52 99 186
2012 313 215 492 432 170 178 228 164 85 109 156 131
2011 118 73 168 258 267 130 158 156 181 182 271 235
2010 169 57 174 222 165 123 64 137 110 92 94 106
2009 66 208 280 156 178 60 228 179 160 114 78 70
2008 9 8 8 4 2 21 163 221 428 72 244 79
2007 12 10 6 32 22 18 22 15 2 4 2 6
2006 8 9 4 9 9 3 3 5 1 11 23 15
2005 3 8 2 7 2 4 19 3 8 7
2004 13 20 14 3 7 11 22 5 2
2003 1 1 6 3 1
2002 5 1
2001 4 2
2000 16 2

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