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Epidural local anes: GI effect

Discussion in 'ITE Keywords' started by PMPMD, Jun 1, 2011.

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  1. PMPMD

    PMPMD 4G MD

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    Epidural local anes: GI effect
    • GI effects of neuraxial anesthesia are largely result of sympathectomy.
    • Abdominal organs derive sympathetic innervation from T6-L2.
    • Blockade of these fibers results in unopposed parasympathetic activity [CN X].
    • Secretions increase, sphincters relax, and the bowel becomes constricted.
    • Nausea is common complication of neuraxial anesthesia.
    [Barash 6E p947]

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