Revista brasileira de anestesiologia
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Rev Bras Anestesiol · May 2012
Randomized Controlled Trial Comparative StudyRopivacaine for unilateral spinal anesthesia; hyperbaric or hypobaric?
The aim of this study was to compare the unilaterality of subarachnoid block achieved with hyperbaric and hypobaric ropivacaine. ⋯ Both hyperbaric and hypobaric ropivacaine (11.25mg) provided adequate and dependable anesthesia for total knee replacement surgery, with a high level of patient and surgeon comfort. Hypobaric local anesthetic solutions provide a high level of unilateral anesthesia, with rapid recovery of both sensory and motor block, and therefore may be preferable in outpatient settings.