Answer to Question 1
A paravertebral block is the injection of a local anesthetic agent around the nerves to the flank
region where they exit the vertebral column.
Answer to Question 2
Caudal epidurals are used in the following situations:
To desensitize the perineum and caudal thighs of a ruminant to ease rectal palpation,
calving, reduction of a rectal/vaginal/uterine prolapse or to perform surgery.
Larger volumes may be used to paralyze and desensitize the pelvic limbs, udder and
abdominal wall for surgery.
Analgesics (xylazine, butorphanol) may be used to administer analgesia without causing
paresis or paralysis.