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- Yasunori Haranishi, Yasutoshi Matayoshi, Kaori Yoshitomi, Masato Uchida, Kumiko Nakamura, Hideo Oka, Hisashi Tamura, and Seiichi Shibasaki.
- Department of Anesthesia, Yamaguchi Prefectural Central Hospital, Hofu 747-8511.
- Masui. 2004 Sep 1; 53 (9): 1014-8.
BackgroundThe effects of different volumes (2.4, 2.6, 2.8 and 3.0 ml) of isobaric 0.5% bupivacaine used for spinal anesthesia were compared in 206 patients scheduled for lower limb surgery.MethodsThe spinal anesthesia was performed with the patients in the lateral position and the isobaric 0.5% bupivacaine was injected intrathecally at the L3-4 interspace.ResultsThe time to maximum cephalad spread of anesthesia (loss of cold sensation) varied between 25 and 40 min. A significant difference was found in cephalad spread between 2.4 ml group and 3.0 ml group (T11 vs T7), and between 2.6 ml group and 3.0 ml group (T11 vs T7). Severe hypotension did not occur during the study.ConclusionsSpinal anesthesia with 2.8 ml of isobaric 0.5% bupivacaine proved satisfactory for lower limb surgery.
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