静脉置管时局部麻醉药的合理使用。
Appropriate use of local anaesthetic for venous cannulation.
作者信息
Harrison N, Langham B T, Bogod D G
机构信息
Department of Anaesthesia, Queen's Medical Centre, Nottingham.
出版信息
Anaesthesia. 1992 Mar;47(3):210-2. doi: 10.1111/j.1365-2044.1992.tb02120.x.
A departmental survey indicated that the large majority of anaesthetists believed that injection of local anaesthetic before insertion of an intravenous cannula was unnecessary if a cannula of 18 gauge or smaller was used, because injection of local anaesthetic would be more painful than insertion of the cannula. A study was undertaken to test this hypothesis. The results showed that intravenous cannulation with a cannula of 18, 20 or 22 gauge was significantly (p less than 0.006) more painful than a subcutaneous injection of 1% lignocaine. We recommend that subcutaneous injection of local anaesthetic should be considered before insertion of any size of intravenous cannula.
一项科室调查表明，绝大多数麻醉医生认为，如果使用18号及以下规格的静脉留置针，在插入静脉留置针之前注射局部麻醉药是不必要的，因为注射局部麻醉药会比插入留置针更疼。为此进行了一项研究来验证这一假设。结果显示，使用18号、20号或22号规格的静脉留置针进行静脉穿刺比皮下注射1%的利多卡因明显更疼（p<0.006）。我们建议，在插入任何规格的静脉留置针之前，都应考虑皮下注射局部麻醉药。
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