Hello ladies and gentlemen.
Welcome back to our ongoing
series of lectures on Anesthesiology. Today
we're going to talk about Regional Anesthesia
and Analgesia. Both, how we can provide
anesthesia for surgical procedures,
and how we can produce analgesia
for postoperative pain management. So
the agenda for this lecture will be some
definitions, a description of two major
Neuraxial blocks, Epidural and Spinal.
A description of several
Limb blocks, including Brachial plexus block for the upper
limb, and some lower limb blocks, including Femoral nerve
block and Ankle block. A very brief
discussion about Autonomic nervous
system blocks for pain and diagnostic purposes.
And then a somewhat more expanded
discussion of Intravenous regional anesthesia.
So the definitions are pretty straightforward
actually. The injection of local anesthetics
into areas to produce anesthesia sufficient
for surgical procedures to be performed without
discomfort to the patient. That's Regional
Anesthesia. And that's typical of Sub-arachnoid
block or Spinal block. It's also typical of what we
see with Epidural blocks. With Peripheral
nerve blocks it's never quite as clear as
that. We certainly can produce, can do surgery
with some of these blocks, but in many cases
the blocks are inadequate for surgical anesthesia
but produce excellent postoperative
analgesia. So regional analgesia is the injection
of the same local anesthetic into areas of the body
to produce analgesia for postoperative pain relief.
These blocks are commonly used in upper limb
surgery to produce postoperative analgesia. Some
of these blocks are sufficient to provide anesthesia
for surgery, but the duration of surgery and the position
of the patient during surgery results
in them being used primarily for analgesia.