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  • Title: [Do "lefthanders" make better local anesthetics? The relevance of stereoisomerism in clinical practice as shown by new local anesthetics].
    Author: Wulf H.
    Journal: Anaesthesist; 1997 Jul; 46(7):622-6. PubMed ID: 9304365.
    Abstract:
    S-Ropivacaine is a new, long-acting amide local anaesthetic. It is the first local anaesthetic to be on the market as a single isomer. Its pharmacodynamic and pharmacokinetic profile is similar to that of bupivacaine. In vitro and in vivo experiments have shown ropivacaine to be less cardiotoxic than bupivacaine. When given epidurally, both local anaesthetics are equally effective in producing sensory block, but motor block seems to be less pronounced in the case of ropivacaine. This pharmacodynamic profile suggests that ropivacaine has a greater margin of safety and should be a valuable candidate in applications where motor blockade is to be avoided, e.g. for postoperative epidural analgesia and for epidural analgesia in obstetrics.
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