A comparison of median effective doses of intrathecal levobupivacaine and ropivacaine for labor analgesia.

@article{Sia2005ACO,
  title={A comparison of median effective doses of intrathecal levobupivacaine and ropivacaine for labor analgesia.},
  author={Alex T H Sia and Raymond Wee-Lip Goy and Yvonne H. L. Lim and Cecilia E Ocampo},
  journal={Anesthesiology},
  year={2005},
  volume={102 3},
  pages={651-6}
}
BACKGROUND The study was designed to determine and compare the median effective doses (MEDs) of intrathecal ropivacaine with levobupivacaine for labor analgesia. METHODS In this double-blind study, 100 parturients in early labor were randomized to receive either intrathecal ropivacaine or levobupivacaine. For each drug, the patients were assigned to receive one of the five doses studied, namely 1, 1.5, 2, 2.5, or 3 mg. Effective analgesia was defined as a pain score (0-100 visual analog scale… CONTINUE READING