Abstract
Forty-two healthy women at term receiving epidural anesthesia for elective cesarean section were randomly assigned to receive either 2% lidocaine with 1:200,000 epinephrine or 0.5% bupivacaine with 1:200,000 epinephrine from a 20 ml coded ampule. All patients were managed and prepared in a similar and standardized manner. Sufficient local anesthetic was injected, in divided doses, to produce a T5-S5 level. Sensory block was tested periodically until a T5 level was attained and the duration of analgesia was noted. The quality of intraoperative analgesia was graded from 3 (excellent, no discomfort) to 0 (failed, general anesthesia used). Postoperatively, visual analog scales were employed to quantify maximal discomfort and maximal intraoperative pain. Assessment was made of motor block and abdominal wall strength. Complications such as hypotension, nausea, vomiting, shivering and urinary dysfunction were noted, as were S-D and U-D intervals and neonatal condition at birth.
Published Version
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