Published in:
01-04-2009 | Editorials
Drug interactions: lipoxygenase inhibitors interfere with ropivacaine-induced vasoconstriction
Authors:
Daisy T. Joo, MD, PhD, Gail K. Wong, MBBS
Published in:
Canadian Journal of Anesthesia/Journal canadien d'anesthésie
|
Issue 4/2009
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Excerpt
Local anesthetics are used to facilitate analgesia through their inhibition of sensory nerve conduction.
1 As sodium channel blockers,
1 local anesthetics inhibit the propagation of action potentials along nerve axons participating in the transmission of pain signals through the peripheral and central nervous systems.
2 Aside from sodium channel inhibition, it is now becoming clear that local anesthetics have actions on other important cellular components. In this issue of the
Journal, Sung et al.
3 explore the mechanisms of ropivacaine-induced vasoconstriction through the modulation of arachidonic acid metabolism and production of vasoactive leukotrienes. Their article raises the interesting possibility that existing drug therapies in patients can affect the pharmacokinetics of co-administered local anesthetics. …