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This Concept Map, created with IHMC CmapTools, has information related to: IV regional anesthesia, Advantages such as 1. Rapid onset of analgesic effect (usually 5 -10 minutes) 2. Anesthetic effect can last for over an hour once the tourniquet is kept in place (Tourniquet can be safely left on for over an hour) 3. Limb regains sensation within 5 minutes of removing the tourniquet 4. Simple and rapid to carry out (minimal level of expertise required) 5. Involves little tissue trauma 6. Inexpensive, 10ml of Lidocaine (5mL of 2%lidocaine + 5ml Saline) in a 10 mL syringe. was injected into the lateral saphenous vein using 21 Gauge butterfly catheter (a 20 gauge 1.5" needle may also be used), There may be some weakness in the selected limb for several hours post-op resulting in Cow's gait being slightly uneven for a brief period, INTRAVENOUS REGIONAL ANESTHESIA there are also possible Disadvantages/complications, Advantages such as 1. Rapid onset of analgesic effect (usually 5 -10 minutes) 2. Anesthetic effect can last for over an hour once the tourniquet is kept in place (Tourniquet can be safely left on for over an hour) 3. Limb regains sensation within 5 minutes of removing the tourniquet 4. Simple and rapid to carry out (minimal level of expertise required) 5. Involves little tissue trauma 6. Inexpensive, INTRAVENOUS REGIONAL ANESTHESIA Scroll over for details Intraoperative Procedure, Intraoperative Procedure post injection Analgesia was achieved in the limb within 6 minutes., Post Operative Considerations and Client education client's should Monitor Limb for 24 hours to ensure full use has been regained post operatively, Disadvantages/complications such as 1. Possible danger to the veterinarian conducting the procedure as the animal may kick out when being injected, adequate restraint is necessary. 2. Full analgesic effect may not be attained if tourniquet is not tied tightly enough. Very Important to test limb for deep tissue analgesia before carying out any surgical procedure!! 3. IVRA does not always result in full analgesia of the skin between the digits; an additional injection of lidocaine midline on the dorsal aspect of the fetlock and on the caudal aspect between the dew claws may be required 4. Irritation to the area due to injection or due to adverse reaction to drug used., Post Operative Considerations and Client education client's should Monitor Limb for 24 hours to ensure full use has been regained post operatively, Post Operative Considerations and Client education inform the client that There may be some weakness in the selected limb for several hours post-op, Drugs and equipment needed for Intraoperative Procedure, INTRAVENOUS REGIONAL ANESTHESIA there are Advantages, Scroll over for info on conclusion of procedure it is necessary to have Post Operative Considerations and Client education, Post Operative Considerations and Client education client's should Monitor injection site for 7 days for any swelling, redness or irritation which may be suggestive of an infection, Analgesia was achieved in the limb within 6 minutes. tested by Using a needle and pricking not only the skin along the limb but also the deep tissue to ensure full anesthesia had taken place.