From: Spinal mepivacaine versus bupivacaine for ultrasound guided transvaginal oocyte retrieval. A comparative study
Group M
Group B
P value
Time to sensory block regression to S1 (min)
127. 45 ± 19.54
198.62 ± 22.32*
P < 0.05
Duration of motor blockade (min)
108.32 ± 17.32
187.25 ± 19.34*