Background. Transient neurologic symptoms (TNSs) can be distressing for patients and providers following uneventful spinal\nanesthesia. Spinal mepivacaine may be less commonly associated with TNS than lidocaine; however, reported rates of TNS with\nintrathecal mepivacaine vary considerably. Materials and Methods. We conducted a retrospective cohort study reviewing the\ninternal medical records of surgical patients who underwent mepivacaine spinal anesthesia at Toronto Western Hospital over the\nlast decade to determine the rate of TNS. We defined TNS as new onset back pain that radiated to the buttocks or legs bilaterally.\nResults. We found one documented occurrence of TNS among a total of 679 mepivacaine spinal anesthetics (0.14%; CI:\n0.02ââ?¬â??1.04%) that were performed in 654 patients. Conclusion. Our retrospective data suggest that the rate of TNS associated with\nmepivacaine spinal anesthesia is lower than that previously reported in the literature.
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