Sympathetic Block (Stellate ganglion and Lumbar
Sympathetic Blocks)

Complex Regional Pain Syndrome, or Reflex Sympathetic
Dystrophy (RSD), commonly occurs after injuries to the
limb but can also develop after stroke, myocardial
infarction and surgery.
The pain is termed causalgia, characterized by burning
and prickly hypersensitivity. The acute stage is
accompanied by swelling and reddening of the affected
limb. But later as atrophy sets in, the limb becomes
thin and frail along with muscles wasting and
osteoporosis, rendering the affected limb painful and
lifeless.
Sympathetic blocks are performed at the stellate
ganglion for upper extremities and lumbar paravertebral
ganglions for lower extremities. By diminishing the
vicious sympathetic hyperactive feedback, these blocks
along with physical therapy and medication help restore
normal limb function. Early recognition and intervention
are essential for good outcome.
The information contained here is not
intended as a substitute for professional
medical evaluation and management. It
should be used only as a starting point for
further research. A physician should always
be consulted for any health problem.