Comparación clínica de ropivacaína y bupivacaína para bloqueo de plexo braquial por abordaje axilar mediante neuroestimulación

Peña-Riverón, Ana Angélica; Zaragoza-Lemus, Guadalupe; Sánchez-Velasco, Beatriz; López-Ruiz, Victoria Guadalupe
January 2009
Revista Mexicana de Anestesiologia;jan-mar2009, Vol. 32 Issue 1, p7
Academic Journal
Objective: To evaluate the anesthetic quality, as well as the analgesic efficiency and length, between ropivacaine (0.75%) and bupivacaine (0.5%) using a dose of 3 mg/kg for the blockade of the axillary brachial plexus in hand surgery through a peripheral nerve localizer. Material and methods: It was performed a prospective study on 60 patients in a randomized way with the same probability of receiving either ropivacaine or bupivacaine. The patients were assigned to two different groups, and every patient was soothed by means of midazolam and fentanyl. The localization of the brachial plexus was effective for finding a response in the median (MN), radial (RN), and ulnar (UN) nerves through a peripheral nerve stimulator. It was evaluated the starting time, the efficacy of the anesthesia, the motor and sensible blockade; as well as of post-operative length of the anesthesia. Results: There were no significant demographic differences between both groups, even though the starting time of the sensible blockade was significantly lower for the ropivacaine group (22.77 minutes) than for the bupivacaine group (37.48 minutes). The length of the analgesic effect was higher for ropivacaine (18.62 hours) than for bupivacaine (13.11 hours). The scale of basal pain was not significant. Conclusion: Ropivacaine shortens the latency time with respect to bupivacaine in the blockade of the axillary brachial plexus.


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