conduction anesthesia

conduction anesthesia

n.

Regional anesthesia in which a local anesthetic solution is injected about the nerves to inhibit nerve transmission. Also called block anesthesia.

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conduction anesthesia,

a loss of sensation, especially pain, in a region of the body, produced by injecting a local anesthetic along the course of a nerve or nerves to inhibit the conduction of impulses to and from the area supplied by that nerve or nerves. Also called block anesthesia, nerve block anesthesia. See also anesthesia, regional anesthesia.

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anesthesia (an´esthē´zē, an´esthē´zh),

n the loss of feeling or sensation, especially loss of tactile sensibility, with or without loss of consciousness, resulting from the use of certain drugs or gases that serve as inhibitory neurotransmitters.

anesthesia, basal,

n a state of narcosis, induced before the administration of a general anesthetic, that permits the production of states of surgical anesthesia with greatly reduced amounts of general anesthetic agents.

anesthesia, block,

n a local anesthesia induced by injecting the local anesthetic drug close to the nerve trunk, at some distance from the operative field. See also anesthesia, infiltration, and block.

anesthesia, conduction,

n a local anesthesia induced by injecting the local anesthetic agent close to the nerve trunk, at some distance from the operative field.

anesthesia, general,

n an irregular, reversible depression of the cells of the higher centers of the central nervous system that makes the patient unconscious and insensible to pain.

anesthesia, glove,

n an anesthesia with a distribution corresponding to the part of the skin covered by a glove.

anesthesia, infiltration,

n a local anesthesia induced by injecting the anesthetic agent directly into or around the tissues to be anesthetized; used for operative procedures on the maxillary premolar, anterior teeth, and
mandibular incisors. Also called field block. See also anesthesia, block.

Infiltration anesthesia.

anesthesia, intraosseous,

n the local anesthesia produced by the injection of a local anesthetic agent into the cancellous portion of a bone.

anesthesia, intrapulpal,

n the injection of a local anesthetic agent directly into pulpal tissue under pressure.

anesthesia, local,

n (regional anesthesia), the loss of pain sensation over a specific area of the anatomy without loss of consciousness.

anesthesia, regional,

n a term used for local anesthesia. See also anesthesia, local.

anesthesia, topical,

n a form of local anesthetic agent with which the surface free nerve endings in accessible structures are rendered incapable of stimulation by applying a suitable solution directly to the surface of the area. Used on the surface soft tissue before a local anesthetic injection to anesthetize surface soft tissues for minor operative procedures.

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conduction, conductive

conveyance of energy, as of heat, sound or electricity.

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accessory tract atrioventricular conduction

permits a sinus impulse from the atria to ventricles to precede that carried by the normal atrioventricular conduction system. Arrhythmia results, the particular electrocardiographic characteristics depending on the pathway(s) involved. See also wolff-parkinson-white syndrome.

aerial conduction, air conduction

conduction of sound waves to the organ of hearing through the air.

conduction anesthesia

local anesthesia produced by the injection of an anesthetic agent close to a nerve in order to prevent transmission of nerve impulses along it.

bone conduction

conduction of sound waves to the inner ear through the bones of the skull.

conduction disorder

abnormalities in the conduction pathways of the heart.

James accessory conduction

see james fibers.

conduction system

the system comprises the sinoatrial and atrioventricular nodes, atrioventricular bundle and Purkinje fibers.

Conduction system of the heart. By permission from Cunningham JG, Textbook of Veterinary Physiology, Saunders, 2002

conduction time

an indicator of a peripheral nerve's ability to carry an impulse; measured during electromyography. A nerve that has undergone Wallerian degeneration is unable to carry an impulse. Severe loss of myelin results in a prolonged conduction time.