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Intravenous regional anesthesia (IVRA) or Bier's block anesthesia is an anesthetic technique on the body's extremities where a local anesthetic is injected intravenously and isolated from circulation in a target area.
The axillary block is particularly useful in providing anesthesia and postoperative analgesia for surgery to the elbow, forearm, wrist, and hand. The axillary block is also the safest of the four main approaches to the brachial plexus, as it does not risk paresis of the phrenic nerve, nor does it have the potential to cause pneumothorax. [12]
Levobupivacaine is furthermore contraindicated in patients with known hypersensitivity to levobupivacaine or other amide-type local anaesthetics, in patients with severe hypotension (e.g. cardiac or hypovolemic shock) and for use in intravenous regional anaesthesia (Bier’s block). [9] [10]
Many local anesthetics fall into two general chemical classes, amino esters (top) and amino amides (bottom). A local anesthetic (LA) is a medication that causes absence of all sensation (including pain) in a specific body part without loss of consciousness, [1] providing local anesthesia, as opposed to a general anesthetic, which eliminates all sensation in the entire body and causes ...
Spinal anaesthesia (or spinal anesthesia), also called spinal block, subarachnoid block, intradural block and intrathecal block, [1] is a form of neuraxial regional anaesthesia involving the injection of a local anaesthetic or opioid into the subarachnoid space, generally through a fine needle, usually 9 cm (3.5 in) long.
Caudal anaesthesia is a relatively low-risk technique [4] commonly used, either on its own or in combination with sedation or general anaesthesia. [3] [5]Caudal anesthesia may be favored for sub-umbilical region surgeries in the pediatric population, such as inguinal hernia repair, circumcision, hypospadias repair, anal atresia, or to immobilise newborns with hip dysplasia.
In 1908, Bier pioneered the use of intravenous regional anesthesia, [2] [3] a technique which is commonly referred to as a "Bier block". [4] This technique is frequently used for operations of brief duration upon the hand, wrist, and forearm. It can also be used for operations of brief duration upon the foot, ankle, and leg. [2] [3]
The retrobulbar block is performed with the patient either seated or supine and looking straight ahead. The head should be maintained in a neutral position. A needle (22–27 Gauge, 3 cm long) is inserted at the inferolateral border of the bony orbit and directed straight back until it has passed the equator of the globe.