[A child with hyperpyrexia syndrome and multiple organ failure caused by and an orthopedic corset].

A 4-year-old boy who each night was placed in an orthopaedic corset because of congenital multiple arthrogryposis developed heat stroke with hyperpyrexia and multiorganic failure in a hot summer. Treatment consisted of administration of fluids, antibiotics and anticonvulsive agents; the child recovered completely. In children who are sick and have fever, the use of such corsets should temporarily be suspended.