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Epidural
Merck Manuals
Related terms:
conduction anesthesia
local anesthesia
spinal block
nerve block
Therapeutic or Preventive Procedure
epidural anesthesia
ep·i·du·ral an·es·the·sia [ ep-i-doo r-uhl, -dyoo r- an-uh s-thee-zhuh ]
Subclass of:
Anesthesia, Conduction
Definitions related to epidural anesthesia:
  • (epidural block) An anesthetic procedure that involves administering pharmaceutical agents into the epidural space of the spinal canal. Frequently administered agents include local anesthetics and analgesics.
    NCI
    U.S. National Cancer Institute, 2021
  • (epidural block) An injection of an anesthetic drug into the space between the wall of the spinal canal and the covering of the spinal cord.
    NCI Dictionary of Cancer Terms
    U.S. National Cancer Institute, 2021
  • Regional loss of feeling or sensation resulting from injection of an anesthetic into the epidural space of the spinal cord; sensation is lost in the abdominal and genital and pelvic areas; used in childbirth and gynecological surgery.
    CRISP Thesaurus
    National Institutes of Health, 2006
  • (anesthesia, epidural) Procedure in which an anesthetic is injected into the epidural space.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.

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