Why the study?
Ropivacaine has claimed benefits of reduced cardiac toxicity and differential sensory block, but the use of intrathecal hyperbaric ropivacaine has not been well studied.
Does intrathecal ropivacaine 0.75% hyperbaric alter the characteristics of subarachnoid block compared to bupivacaine 0.5% hyperbaric in patients undergoing lower abdominal and lower limb surgery?
Does intrathecal ropivacaine 0.75% hyperbaric alter the characteristics of subarachnoid block compared to bupivacaine 0.5% hyperbaric in patients undergoing lower abdominal and lower limb surgery?
Intrathecal ropivacaine 0.75% hyperbaric produces a slower onset of sensory and motor block than 0.5% hyperbaric bupivacaine, but with comparable cephalic spread and duration of sensory block.
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Supports bupivacaine for rapid-onset needs in lower abdominal/limb surgery; extends RCT data on hyperbaric local anesthetic profiles.
Mahajan et al. (2023) studied this question.
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