Masui. The Japanese journal of anesthesiology
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Randomized Controlled Trial Comparative Study
[Effects of intravenous vasopressor on spread of spinal anesthesia with 0.5% hyperbaric bupivacaine for caesarean delivery].
It is known that when isobaric bupivacaine is applied for Caesarean delivery, phenylephrine is superior to ephedrine in preventing rostral spread of spinal anesthesia. In this study, we prospectively investigated whether phenylephrine can prevent rostral spread of spinal hyperbaric bupivacaine. ⋯ 1. Phenylephrine prevented rostral spread of spinal hyperbaric bupivacaine. 2. Haemodynamic changes were significantly different between the two groups. 3. Umbilical artery pH was significantly higher with phenylephrine than with ephedrine.
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Randomized Controlled Trial Comparative Study
[Technical advantages of ultrasound-guided obturator nerve block compared with the nerve stimulating technique].
We investigated the onset time of obturator nerve block and time required for the nerve block comparing two groups in a prospective randomized study. ⋯ Ultrasound imaging facilitated the identification of obturator nerves between adductor muscles. Ultrasound-guided obturator nerve block is a safe, quick and useful technique.