A 33-year-old woman with acute idiopathic post-ganglionic panautonomic
neuropathy experienced prompt recovery of all dysautonomic symptoms a
fter receiving high-dose intravenous immunoglobulin therapy, Her recov
ery was complete within 6 months after onset of disease, This unusuall
y rapid and complete recovery in comparison with that of historical co
ntrol subjects suggests that patients with acute, severe, and widespre
ad autonomic failure might benefit from intravenous immunoglobulin the
rapy.