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Spinal anesthesia frequently results in hypotension due to high sympathetic blockade. The aim of this study was to examine effect of sitting for 5 minutes compared to immediately lying down after 10 mg of 0.5% hiperbaric bupivacaine administration with regards to the mean arterial pressure and level sensory blockade in patients who underwentd spinal anesthesia. This was a single blind randomized controlled trial in 36 patients with American Society of Anesthesiologists (ASA) I–II undergoing lower abdominal and lower extremities surgery under spinal anesthesia in Dr. Hasan Sadikin General Hospital Bandung during the period of March to May 2015. Data were statistically analyzed using Mann Whitney test for mean arterial pressure and Kolmogorov Smirnov test for level sensory blockade. The results showed a decrease of mean arterial pressure in group 1 (sitting 5 minutes) which was lower than group 2 (immediately lying down) with significant difference (p

Lower extremity orthopedic surgery performed with regional epidural anesthesia was still have weakness which is long onset of time. This study was conducted to determine the onset time and duration time of sensory blockade epidural anesthesia between the use of dexamethasone 5 mg addition to 0.5% bupivacaine for lower limb orthophedic surgery. The study was using randomized controlled blind method on 32 ASA I–II patients undergoing lower limb orthopedic surgery under epidural anesthesia. Consecutive sampling and random allocation of block of permutation groups was applied. In group I, dexamethasone 5 mg was added to bupivacaine 0.5% 15 mL while in group II NaCl 1 mL was added to bupivacaine 0.5% 15 mL. The results were statistically tested using t-test and Mann-Whitney test. It was shown that the onset time of sensory blockade was not significantly faster when dexamethasone was added in bupivacaine 0.5%, 13.56 minutes versus 14.31 minutes (p=0.27). The duration time of sensory blockade in dexamethasone in bupivacaine 0.5% group was longer 399.81 minutes, compared to the bupivacaine 0.5% group, 227.43 minutes (p=0.00). In conclusions, the addition of dexamethasone 5 mg to bupivacaine 0.5% 15 mL does not produced faster onset time. However, the duration sensory blockade time is longer than bupivacaine 0,5% 15 mL is used.