frequent procedures
STELLATE GANGLION BLOCK
Stellate ganglion block is a procedure
that attempts to block the sympathetic activity in the upper
extremity and achieve pain relief. The stellate ganglion is a
ganglion lying anterior to the vertebral body of the C7 vertebra
approximately, and on each side of the midline. It is a “relay” site
and is able to receive sympathetic ganglion fibers from the upper
extremity of the ipsilateral side. The ganglion is accessed with the
patient lying supine and with placement of a tiny middle into the
vicinity of that ganglion in a very quick and brief procedure that
is preceded by manual displacement of vital tissue and vessels prior
to the injection. The injection is done with about 10 cc of local
anesthetic that is injected, and the effect of the injection is
quick and effective in blocking the sympathetic chain, and relieving
pain in the upper extremity affected with adequate placement.
Following a successful procedure of a unilateral ptosis and
temporary, as well as color change with increased partition of the
skin of the upper extremity on the ipsilateral side, as well as
increase in temperature and reduction of pain on the upper extremity
involved, there is also increased partition of the capillary of the
sclera of the eye affected, as well as unilateral pupillary
constriction, otherwise called pinpoint pupil or myosis. There may
also be enophthalmos. What happens that may be present include nasal
congestion and facial anhidrosis. It is important to note that
because of a _____fiber called bundle of Kuntz, these signs may be
present without complete interruption of the sympathetic nerves of
the upper extremity involved occurring. Pain relief is usually
documented in these patients.
INDICATIONS: Common indications for stellate ganglion block
includes reflex sympathetic dystrophy and causalgia,
______infections, shingles, post sympathetic neurology, vascular
insufficiency as in frostbite or vasospasm of the upper extremity on
the affected side, or Raynaud disease.
CONTRAINDICATIONS: Use of anticoagulants like Coumadin and
Heparin may be a related contraindication in this procedure.
Coumadin should be stopped about three days prior to the injection
being done, and may be resumed as soon as the procedure is
completed.
COMPLICATIONS: Complications are very rare in this procedure
when done with experience. Complications of this procedure include
intradermal injection, which could result in a spinal block,
intravascular injection, which could result in spread of local
anesthetic including CNS and cranium, resultant impaired mental
status and myoclonic effects.
Patients do not require sedation for this procedure to be done
because it is usually completed within two to three minutes.
However, if the patient is anxious, sedatives may be made available
to the patient on request.
<< Back To Procedure
List