Page 205 - BSAVA Guide to Pain Management in Small Animal Practice

BSAVA Guide to Pain Management in Small Animal Practice

VetBooks.ir one-half of the calculated volume of
the drug.

Sciatic • In ect ml of saline to con rm correct
placement and follow with the solution
to be in ected ensuring there is a small
Femoral air bubble in the syringe; minimal
compression of the air bubble indicates
Saphenous
nerve lack of resistance to in ection and
correct placement in the epidural space.
Administer slowly over minutes. he
needle is then withdrawn.
■ ypically, a mixture of bupivacaine
1 mg kg plus preservative free morphine
Common
peroneal .1 mg kg will be in ected.
nerve
■ Contraindications include coagulopathies,
Tibial
nerve sepsis, infection at injection site and
hypovolaemia or hypotension use of local
anaesthetics can cause hypotension due to
sympathetic blockade .
■ Remember that successful epidural
anaesthesia reduces the re uirement for
inhaled anaesthetic agents.
Anatomical landmarks for saphenous, common
peroneal and tibial nerve blocks in dogs.

• irect the needle bevel cranially, and
advance the needle, with stylet in place,
perpendicular to the skin. If the needle
encounters bone, withdraw it slightly,
redirect it caudally or cranially, and
advance it again.
• Advance the needle perpendicular to
the skin until a popping sensation is felt
ligamentum avum , then remove the
stylet, attach a ml syringe and check
for inadvertent intrathecal or intravenous
in ection aspirate and ensure there is no
cerebrospinal uid CS or blood . If
blood is seen, a venous sinus has been
penetrated and the needle should be
withdrawn and repositioned. If CS is Anatomical landmarks for performing lumbosacral
noted, the subarachnoid space has epidural anaesthesia and analgesia in dogs. he
lumbosacral space can be found caudal to a line
been entered; withdraw or reposition drawn between the cranial borders of the ilia marked
the needle or, alternatively, in ect with a dotted line .

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