Comparison of Perineural Catheter Depth for the Continuous Popliteal Nerve Block Using Ultrasound Guidance and Dermabond
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 83
- 试验地点
- 2
- 主要终点
- Change in Peripheral block score (PBS).
研究概览
简要总结
The study will investigate the difference in success rate between popliteal peripheral nerve catheters placed at 1 centimeter compared to 5 centimeters past the tip of a Tuohy needle.
详细描述
Traditionally for the lower extremity, peripheral nerve catheters have been threaded greater than or equal to 5 centimeters past the tip of the Tuohy needle. The major rational for this practice is to reduce dislodgement. However, the greater the distance that a catheter is advanced, the greater the risk of contacting undesired structures, kinking, looping and knotting. For the continuous popliteal nerve block, the catheter is threaded perpendicular to the course of the nerve. This could result in the tip of the catheter being a significant distance from the targeted nerve which may lead to a decrease in the success rate or efficacy of the block.
Greater efficacy may be seen if the needle is closer to its target. This may be quantified by documenting a faster onset of motor and sensory changes and/or a lower catheter infusion rate required to maintain pain control. The study will investigate the difference in success rate between popliteal peripheral nerve catheters placed at 1 centimeter compared to 5 centimeters past the tip of a Tuohy needle.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Double (Participant, Outcomes Assessor)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Will be having a popliteal nerve blocks
- •Do not meet any of the exclusion criteria listed below.
排除标准
- •< 18 years old
- •BMI > 35
- •Pregnant patients
- •Diabetes mellitus or patients with known neuropathy
- •Amputations & polytrauma patients
- •Patients allergic to local anesthetics
- •Chronic Pain patients
- •Patients in whom communication is a problem
结局指标
主要结局
Change in Peripheral block score (PBS).
时间窗: 10, 20, and 30 minutes after intervention
The extent of popliteal nerve blockade will be captured with four sensory groups (sural, superficial peroneal, tibial, and deep peroneal) and three motor groups (superficial peroneal, tibial, and deep peroneal). For each group, a score of 0, 1, or 2 will be assigned based on complete, partial, or no blockade, respectively. The peripheral block score (PBS) outcome variable will be based on the sum of these values and will range from 0 to 14.
次要结局
- Pain score(Arrival to PACU (Immediately after surgery, approximately 3-5 hours after intervention))
- Analgesia failure rate(Arrival to PACU (Immediately after surgery, approximately 3-5 hours after intervention))
- Catheter dislodgement rates(Arrival to PACU (Immediately after surgery, approximately 3-5 hours after intervention))
- Difference in total opioid usage(Length of Stay In PACU (Approximately 5-7 hours after intervention))
- Degree of Doppler color agitation(Immediately after intervention)
研究者
Clifford Bowens
Assistant Professor
Vanderbilt University