Revista Brasileira de Anestesiologia (Jun 2013)
O bloqueio combinado raqui-peridural com extensão do volume peridural causa nível mais alto de bloqueio do que a raquianestesia com dose única El bloqueo combinado raquiepidural con extensión del volumen epidural causa nivel más alto de bloqueo que la raquianestesia con dosis única Combined spinal-epidural anesthesia with epidural volume extension causes a higher level of block than single-shot spinal anesthesia
Abstract
JUSTIFICATIVA E OBJETIVOS: Avaliamos os efeitos da administração peridural de levobupivacaína ou solução salina, extensão do volume peridural (EVE), em bloqueio combinado raqui-peridural (BCRP) para cesariana. MÉTODOS: Foram incluídas no estudo 138 pacientes com gravidez a termo de 37-42 semanas programadas para cesariana. O Grupo 1 (n = 48) recebeu raquianestesia com dose única (RADU), o Grupo 2 (n = 45) recebeu BCRP-EVE com solução salina e o Grupo 3 recebeu BCRP-EVE com levobupivacaína. As características do bloqueio motor e sensorial os efeitos nas alterações hemodinâmicas maternas e nos recém-nascidos foram comparados. RESULTADOS: O tempo para atingir o bloqueio sensorial máximo foi significativamente menor no Grupo 3 do que nos grupos 1 e 2 (p JUSTIFICATIVA Y OBJETIVOS: Evaluamos los efectos de la administración epidural de levobupivacaína o solución salina en BCRE para cesárea. MÉTODOS: Se incluyeron en este estudio 138 pacientes con embarazo a término de 37-42 semanas programadas para cesárea. El Grupo 1 (n = 48) recibió raquianestesia con una dosis única (RADU), el Grupo 2 (n = 45) recibió BCRE-EVE con una solución salina y el Grupo 3 recibió BCRE-EVE con levobupivacaína. Las características del bloqueo motor y sensorial y los efectos en las alteraciones hemodinámicas maternas y en los recién nacidos fueron comparados. RESULTADOS: El tiempo para alcanzar el bloqueo sensorial máximo fue significativamente menor en el Grupo 3 que en los grupos 1 y 2 (p BACKGROUND AND OBJECTIVES: We evaluated the effects of epidural injection with levobupivacaine or serum physiologic, epidural volume extension (EVE), when using combined spinal-epidural anesthesia (CSEA) for cesarean delivery. METHODS: One-hundred and thirty-eight patients with a full-term pregnancy of 37-42 weeks that were scheduled for cesarean delivery were included. Group 1 (n = 48) received single-shot spinal anesthesia (SSS), group 2 (n = 45) received CSEA-EVE with saline, group 3 received CSEA-EVE with levobupivacaine. The characteristics of motor and sensory block, the effects on maternal hemodynamic changes and the effects on the newborn were compared. RESULTS: Time to reach maximum sensory block was significantly shorter in groups 3 than in group 1 and 2 (p < 0.05). Two-segment regression time of sensory block was significantly shorter in group 1, whereas it was significantly longer in group 3 than in group 2 (p < 0.05). Time to onset of motor block was significantly longer in group 1 than in groups 2 and 3 (p < 0.05). Time to reach maximum motor block was significantly shorter in group 3 than in groups 1 and 2 (p < 0.05). Time to recovery of motor block was significantly longer in group 3 than in groups 1 and 2 (p < 0.05). The time to first analgesic was significantly longer in group 3 (p < 0.05). CONCLUSIONS: Sufficient and rapid motor and sensory block was achieved in all the patients in the present study; however, motor and sensory block had faster onset, lasted longer, and was of a higher level in groups 2 and 3; these effects were more pronounced in the group 3.