Effectiveness of Ultrasound Guided Supraclavicular Brachial Plexus Block With 20, 30, or 40 ml of Ropivacaine 0.5%
试验速览
- 阶段
- 不适用
- 状态
- 撤回
- 试验地点
- 1
- 主要终点
- Onset of analgesia
研究概览
简要总结
This research study is being done in order to find out if there is any difference in the effectiveness of ultrasound guided supraclavicular brachial plexus nerve block that can be achieved with 3 different amounts of ropivacaine 0.5% (20 ml, 30 ml, and 40 ml). The investigators want to show if you can have a successful nerve block with less amount of local anesthetic, thus potentially decreasing the risk of side effects.
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
- Single (Participant)
入排标准
- 年龄范围
- 18 Years 至 64 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Patients between the ages of 18-64,
- •Patients who are ASA I-III, presenting for distal upper extremity surgery. Surgeries to be considered are ORIF of distal upper extremity fractures such as ORIF radius, ORIF ulna, ORIF of any bones in the wrist or hand, and distal upper extremity surgery involving bones or tendons for which postoperative pain is to be expected. No emergency surgeries will be considered.
排除标准
- •Emergency surgery,
- •Patient or surgeon refusal
- •Patients for which peripheral nerve block or study medications are contraindicated,
- •Patients on chronic analgesic therapy at home,
- •History of nerve injury, neuropathy, or known neurologic injury or illness, or inability to properly describe postoperative pain to investigators (language barrier, psychiatric disorder, dementia).
研究组 & 干预措施
Group R20
Patient will receive 20 ml of ropivacaine 0.5% for their ultrasound guided supraclavicular block.
干预措施: 20 ml of ropivacaine 0.5% (Drug)
Group R30
Patient will receive 30 ml of ropivacaine 0.5% for their ultrasound guided supraclavicular block.
干预措施: 30 ml of ropivacaine 0.5% (Drug)
Group R40
Patient will receive 40 ml of ropivacaine 0.5% for their ultrasound guided supraclavicular block.
干预措施: 40 ml of ropivacaine 0.5% (Drug)
结局指标
主要结局
Onset of analgesia
时间窗: First 30 minutes
Duration of analgesia
时间窗: 24 hours
次要结局
- Total analgesic use(First 24 hours)
研究者
Jaime Ortiz
Assistant Professor of Anesthesiology
Baylor College of Medicine