Influence of Lower Extremity Positioning During Anterior-approach Ultrasound-guided Sciatic Nerve Block: Depth and Visibility
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 45
- 试验地点
- 1
- 主要终点
- Visibility of sciatic nerve
研究概览
简要总结
Little is known about which posture of lower extremity makes it easier to access to the sciatic nerve. In this study, the investigators aimed to identify the most appropriate positioning of the lower extremity during anterior-approach ultrasound-guided sciatic nerve block.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Crossover
- 时间视角
- Prospective
入排标准
- 年龄范围
- 18 Years 至 80 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •ASA PS 1-3
- •patients undergoing knee surgery requiring peripheral nerve block
排除标准
- •patients who refuse to participate in the study
- •BMI > 40 kg/m2
- •patients who have congenital abnormality on leg
- •patients who have surgery or trauma on hip/knee
- •patients who cannot move freely due to the contracture
- •patients who are judged ineligible by the medical staff to participate in the study for other reasons
结局指标
主要结局
Visibility of sciatic nerve
时间窗: during 10 minutes of anesthesia induction
Visibility of sciatic nerve at each position assessed using a scoring system (0, no nerve identified; 1, nerve identified with a high probability; 2, nerve identified, but most of it not visible; 3, nerve identified, more than 50% of its borders can be precisely distinguished from surrounding structures; 4, nerve completely visible, but fascicles poorly defined; 5, nerve completely visible and multiple fascicles identifiable.)
次要结局
- Depth of sciatic nerve(during 10 minutes of anesthesia induction)
研究者
Hajung Kim
Clinical Instructor
Asan Medical Center