Effect of Local Anesthetic Dose on Interscalene Block for Shoulder Arthroscopy, Patient Satisfaction and Return of Handgrip Strength
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 154
- 试验地点
- 1
- 主要终点
- Handgrip Strength
研究概览
简要总结
The purpose of this study is to determine if a decrease in the standard volume of local anesthetic used to numb your shoulder area before shoulder arthroscopy will provide adequate anesthesia for the procedure and decrease the amount of time until you are ready for discharge from the hospital.
详细描述
Traditionally, an interscalene block is done either with nerve stimulator or ultrasound guided using 40-60mL of local anesthetic. The study plans to investigate the difference in hand grip strength post-operatively in patients who will receive interscalene blocks with 40mL versus a lower dose (20mL) of local anesthetic. We suspect the lower dose will achieve adequate surgical anesthesia while creating less motor block and thus, increase patient satisfaction, present fewer complications or adverse affects and decrease time in the recovery room.
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
- Triple (Participant, Care Provider, Outcomes Assessor)
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
- 是
入选标准
- •Age: 18 - 80 years old
- •Surgical time < 2.5 hours
- •ASA I, II or III
- •Shoulder arthroscopy
排除标准
- •Age < 18 or > 80 years old
- •Chronic pain patients (on narcotics/opioids > 3 months)
- •Open shoulder surgical procedure
- •BMI > 40
- •Pre-existing neurological condition
- •Patient refusal of interscalene block
- •Severe respiratory disease or hemidiaphragmatic dysfunction
- •Allergy to any local anesthetics
- •Planned general anesthesia
研究组 & 干预措施
Low Dose (20 mL) Local Anesthetic
Intervention to be administered is a total volume of 20 mL local anesthetic containing a 1:1 mixture of 1.5% Mepivacaine: 0.5% Bupivacaine.
干预措施: Low Dose (20 ml) Local Anesthetic Volume for Interscalene Block (Procedure)
Control Dose (40 mL) Local Anesthetic
Intervention to be administered is a total volume of 40 mL local anesthetic containing a 1:1 mixture of 1.5% Mepivacaine: 0.5% Bupivacaine
干预措施: Control Dose (40 mL) Local Anesthetic Volume for Interscalene Block (Procedure)
结局指标
主要结局
Handgrip Strength
时间窗: Difference between between baseline and postoperative.
The primary outcome will be handgrip strength as measured by a dynamometer. A reading will be obtained at baseline (before the interscalene block) and 60 minutes post-operative.
次要结局
- Patient Readiness to Discharge(Participants will be followed every 15 minutes post-surgery until discharged from the hospital (up to 180 minutes))
- Duration of Analgesia(Postoperative Day 2)
- Side Effects(Postoperative Day 2)