Epinephrine Does Not Prolong Lidocaine Spinal Anesthesia in Term Parturients

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Abstract
Caine in dextrose plus epinephrine. Maximum segmental level, time to maximum level, and duration as determined by time to two-segment regression were determined for each of the two groups. There were no significant differences between the two groups in any of the observed parameters, most notably, duration. The present results substantiate those from a previous study in an older population that showed that epinephrine did not significantly prolong lidocaine spinal anesthesia. The present results do not, however, support the hypothesis based upon these earlier data that failure of epinephrine to prolong lidocaine spinal anesthesia is restricted to elderly patients. Address correspondence to Dr. Spivey, Department of Anesthesiology, Mercy Hospital & Medical Center, 4077 Fifth Avenue, San Diego, CA 92103. Reprints will not be available from the author. This study was supported in part by Astra and Organon Pharmaceuticals. Accepted for publication November 20, 1984. © 1985 International Anesthesia Research Society...

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