... in intrathecal baclofen withdrawal, highlights the possibility that, rather than representing a true physiological withdrawal syndrome, abrupt withdrawal of intrathecalbaclofen may simply precipitate ... primary or secondary dystonia. Painful andrepetitive spasms interfere with respiration and maycause metabolic disturbances such as hy perpyrexia,dehydration, respiratory insufficiency, and acute ... in patients with primary or secondary dystonia. Painfu l andrepetitive spasms interfere with respiration and may cause metabolic disturbances such as hyperpyrexia,dehydration, respiratory insufficiency,...