在超声波引导的交叉过程块中,不同容量的罗皮瓦卡因的分布模式:一个随机,盲目,计算机断层扫描成像研究
Chao-Wei Wang1,2, Ping Zou3, Zu-Xiong Zhang4
1The First Clinical College, Gannan Medical University, Ganzhou, Jiangxi Province, China.
BMC anesthesiology
|April 5, 2025
概括
交叉过程 (ITP) 块显示可靠的扩散到准脊椎和内脏部分. 患者的位置,而不是局部麻醉剂的体积,显著影响ITP块的分布模式.
科学领域:
- 麻醉学 麻醉学
- 放射学 放射学是一门学科.
- 人体解剖学 解剖学 解剖学
背景情况:
- 已知交叉过程 (ITP) 阻断会对脊柱体进行扩散,但详细的分布模式和剂量效应关系需要澄清.
- 尸体研究表明可靠的传播,但对活人局部麻醉剂 (LA) 分布的体内数据有限.
- 了解LA传播对于优化ITP块的有效性和安全性至关重要.
研究的目的:
- 通过使用计算机断层扫描,评估活人体ITP块中三种不同量的局部麻醉剂 (LA) 的分布模式.
- 确定特定的传播途径和影响LA分布的因素.
- 为了澄清 ITP 块的剂量效应关系.
主要方法:
- 45名成年患者被随机分配,接受0.375%的罗皮瓦卡因,与0.3,0.4或0.5毫升/公斤的对比.
- 计算机断层扫描被用来评估LA在各种解剖区和空间中的分布.
- 主要结局是LA分布;次要结局包括疼痛评分,感官损失和不良事件.
主要成果:
- 局部麻醉主要扩散到内脏区 (77.5%),准脊椎区 (93.3%),勃起器脊椎带平面 (97.8%),肋间空间 (97.8%) 和交感性 (88.9%).
- 患者的位置显著影响了LA分布 (P=0.04),在倾斜的位置上增加了血管前传播.
- 麻醉体积和BMI类别没有显著影响整体分布模式.
结论:
- 阻断ITP主要将LA分发到准脊椎和内脏区,肋间间空间,交感性,和勃起器脊柱带平面.
- 在研究范围内的LA体积增加 (0.3-0.5毫升/公斤) 并没有扩大分布范围.
- 患者的位置是ITP块中LA传播的主要决定因素,而不是麻醉体积.
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