Hello there. In this video, we show you the caudal epidural block in ruminants. Local block techniques in ruminants are quite common, because of the quality, cost and easy to do. Caudal epidural anaesthesia is the perfect technique for obstetric procedures, especially in the perineal region. Unlike in dogs and cats, the technique in ruminants is a bit different. The anaesthetic drugs must be injected into the sacrococcygeal (S5–Co1) or first intercoccygeal (Co1–Co2) spaces, avoiding hind limbs motor blockade.
After clipping area and asepsis, a 40x8 needle is inserted, in the midline of the space, to the subcutaneous. A 1 mL of local anaesthetic is injected to promote local anaesthesia, and then. The needle is inserted until it reaches the epidural space. We can usually feel a "pop" sensation when the ligamentum flavum which is pierced. Hanging drop test is also a good indication that the needle is in there. Additional verification of correct placement should include ease of injection into the epidural space and absence of cerebrospinal fluid (CSF) before injection. A volume of 1 mL / 100 kg of local anaesthetic is injected for adult cattle, maximum of 7 mL, and 1 mL / 20 kg for small ruminants and calves. On this video, I had used inject up to 10mL, but no anymore ok?
The technique promotes anaesthesia of the perineal region between 5 and 10 minutes and the time of action will be related to the local anaesthetic (lidocaine / bupivacaine), concentration, and combinations (opioids, alpha-2 agonists and others).2 and more).
Tips? Comments? Do it please!