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Epidural administration (from Ancient Greek ἐπί, "upon" + dura mater) [1] is a method of medication administration in which a medicine is injected into the epidural space around the spinal cord. The epidural route is used by physicians and nurse anesthetists to administer local anesthetic agents, analgesics , diagnostic medicines such as ...
In anatomy, the epidural space is the potential space between the dura mater and vertebrae . [ 1 ] [ 2 ] The anatomy term "epidural space" has its origin in the Ancient Greek language; ἐπί , "on, upon" + dura mater also known as "epidural cavity", "extradural space" or "peridural space".
Nerve block or regional nerve blockade is any deliberate interruption of signals traveling along a nerve, often for the purpose of pain relief. Local anesthetic nerve block (sometimes referred to as simply "nerve block") is a short-term block, usually lasting hours or days, involving the injection of an anesthetic, a corticosteroid, and other agents onto or near a nerve.
Complications associated with interscalene and supraclavicular blocks include inadvertent subarachnoid or epidural injection of local anesthetic, which can result in respiratory failure. [ 18 ] Because of the close proximity of the lung to the brachial plexus at the level of the clavicle, the complication most often associated with this block ...
Epidural (synonym: peridural) (injection or infusion into the epidural space), e.g. epidural anesthesia. Intracerebral (into the cerebrum) administration by direct injection into the brain. Used in experimental research of chemicals [17] and as a treatment for malignancies of the brain. [18]
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 ...
The needle-through-needle technique involves the introduction of a Tuohy needle (epidural needle) into the epidural space. The standard technique of loss of resistance to injection may be employed. A long fine spinal needle (25G) is then introduced via the lumen of the epidural needle and through the dura mater, into the subarachnoid space.
It is a method for the identification of the epidural space, a potential space. As a needle is advanced through the ligamentum flavum, to the epidural space, with constant pressure applied to the piston of a syringe, loss of resistance occurs once the needle enters the epidural space due to the change in pressure.