| Effect of Speed of Injection on the Level of Spinal Anesthesia with 0.5% Hyperbaric Bupivacaine for a Cesarean Section. |
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Ae Ra Kim, Jin Mo Kim, Sung Ook Han, Se Ho Yang, Eun Ju Choi |
1Department of Anesthesiology, Keimyung University School of Medicine.
2Department of Obstetric & Gynecology, Catholic University of Taegu Hyosung, Taegu, Korea. |
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| Abstract |
BACKGROUND
The purpose of this study was to determine whether the injection rate affects the spread of spinal anesthesia in cesarean sections.
METHODS
Spinal anesthesia was performed on 45 parturients in a cesaren section. Dural puncture was performed in the sitting position with a 27-gauge Whitacre needle. All patients received a mixture of 10 mg hyperbaric bupivacaine and 15 microgram fentanyl. Twenty five (Group I) patients received rapid injections (about 0.2-0.3 ml/sec) and twenty (Group II) received slow injections (about 0.1 ml/sec).
Anesthetic levels, time to T4 sensory block, maximal height sensory block and incidence of hypotension were measured.
RESULTS
There was significantly rapid T4 sensory block in group I but no differences in maximal height of sensory block and incidence of hypotension between the two groups.
CONCLSIONS: We conclude that injection rate (about 0.1-0.3 ml/sec) has a statistically insignificant influence on the maximal height sensory block and incidence of hypotension. |
| Key Words:
Anesthesia, obstetric: cesarean section; Anesthetic techniques: spinal; Anesthetics, local: bupivacaine |
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