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Epidural administration
Epidural administration
(from
Ancient Greek
ἐπί, "on, upon" +
dura mater
) is a medical
route of administration
in which a drug or
contrast agent
is injected into the
epidural space
of the
spinal cord
. Techniques such as
epidural
analgesia
and
epidural
anaesthesia
employ this route of administration. The epidural route is frequently employed by certain
physicians
and
nurse anaesthetists
to administer
diagnostic
(e.g.
radiocontrast agents
) and
therapeutic
(e.g.,
glucocorticoids
) chemical substances, as well as certain analgesic and
local anaesthetic
agents. Epidural techniques frequently involve
injection
of drugs through a
catheter
placed into the epidural space. The injection can result in a loss of
sensation
—including the sensation of
pain
—by blocking the transmission of signals through
nerve fibers
in or near the spinal cord.
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