nerve block n
1) an interruption of the passage of impulses through a nerve (as with pressure or narcotization) called also nerve blocking
2) BLOCK ANESTHESIA
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a method of producing anaesthesia in part of the body by blocking the passage of pain impulses in the sensory nerves supplying it. A local anaesthetic, such as lidocaine, is injected into the tissues in the region of a nerve. In this way anaesthesia can be localized, so that minor operations can be performed without the necessity of giving a general anaesthetic. A ring block is a common technique used for anaesthetizing a digit.
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1. regional anesthesia achieved by making extraneural or paraneural injections of anesthetics next to the nerve whose conductivity is to be cut off. 2. neurolysis (def. 4).Medical dictionary. 2011.