Exertional myopathy (exertional rhabdomyolysis) is an exercise-induced muscular disease characterized by acute inflammation and muscle fibre degeneration.
Lactic acidosis is a feature of this condition, characterized by muscle soreness, stiffness and reluctance to walk.
Diagnosis is based o historical evidence of recent heavy exercise and presenting signs, supported by hematological evidence of severe lactic acidosis and elevated urea and creatinine. Secondary myoglobinuria and hemoglobinuria may be evident in more severe cases.
A differential diagnosis would include cutaneous-renal vasculopathy in Greyhounds.
Most mild cases respond to rest, and in more severe cases IV fluids, bicarbonate, body cooling, rest, and muscle relaxants (eg, diazepam).
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