The authors describe a patient with severe head injury and sepsis who
became acutely quadriplegic 3 days postinjury because of a critical il
lness polyneuropathy (CIP) and critical illness myopathy (CIM), which
resolved rapidly after treatment of the underlying infection. In only
3 days the patient developed septic shock together with flaccid quadri
plegia and absent deep tendon reflexes with no clinical or radiologica
l evidence of central nervous system deterioration. Neurophysiological
studies showed an acute axonal sensorimotor polyneuropathy, whereas t
he clinical course strongly suggested a concurrent myopathy. A severe
Staphylococcus epidermidis infection accompanied by bacteremia was tre
ated and the patient recovered fully within a few days. Although the c
ase described here is unique because of its very early onset and rapid
resolution, CIP and CIM are frequent complications of sepsis and mult
iple organ failure. The authors suggest that severely head injured pat
ients with sepsis should be evaluated for CIP and CIM when presenting
with unexplained muscle weakness or paralysis.