Comparing Subsartorial Saphenous Nerve Blocks With and Without Dexamethasone for Anterior Cruciate Ligament Reconstruction
Postoperative Analgesia Comparing Subsartorial Saphenous Nerve Block With and Without Dexamethasone in ACL Reconstruction
For patients undergoing Anterior Cruciate Ligament reconstruction surgery, the postoperative period can be a painful experience without adequate pain management. Hence the investigators propose a randomized controlled clinical study, investigating prolonged saphenous nerve blocks. Patients will be randomized to receive saphenous nerve blocks with or without dexamethasone, a corticosteroid used to prolong analgesia.
Depending on the randomized treatment assignment, patients may receive one of the following:
- 13 ml of 0.5% bupivacaine, a local anesthetic (no dexamethasone);
- 13 ml of 0.5% bupivacaine mixed with 1 mg of dexamethasone;
- 13 ml of 0.5% bupivacaine mixed with 4 mg of dexamethasone.
Patients will be followed postoperatively. Following admission to the recovery room, data collectors will ask patients to rate their pain on a scale of 0-10 until discharge. Data collectors will also record patient satisfaction, pain medication use and any side effects experienced (i.e. nausea and vomiting). Patients will then be contacted on postoperative days 1, 2 and 14 and asked questions about their general well-being.
研究概览
地位
研究类型
注册 (实际的)
阶段
- 第四阶段
联系人和位置
学习地点
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New York
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New York、New York、美国、10021
- Hospital for Special Surgery
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Patients undergoing ambulatory surgery for anterior cruciate ligament (ACL) reconstruction with a patella tendon autograft.
- ASA I-III [American Society of Anesthesiologists (ASA) Physical Status classification system]
- BMI < 35
- Smokers included
- Ages 16-65
Exclusion Criteria:
- Patients on steroids or requiring stress dose steroids
- BMI > 35
- Patient refusal
- Allergy to study medications,
- NRS scores > 3 with frequent opioid use (including tramadol) prior to surgery-daily for greater than 3 weeks
- Lower extremity neurological dysfunction
- Diabetic (NIDDM, insulin-dependent and/or oral hypoglycemic dependent)
- Not in included age range (under 16 or over 65 years of age)
- Contraindications to the use of dexamethasone
- Non-English speaking patients. We will be using the Short Form 8 Health Survey, as well as the OR-SDS questionnaire (these are in English; any translations would have to be separately validated).
学习计划
研究是如何设计的?
设计细节
- 主要用途:治疗
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:双倍的
武器和干预
参与者组/臂 |
干预/治疗 |
---|---|
安慰剂比较:控制
|
This is the control treatment arm.
Patients will receive an ultrasound-guided saphenous nerve block, consisting of 13 ml of 0.5% bupivacaine (a local anesthetic).
|
有源比较器:Dexamethasone 1 mg
|
This is one of two treatment arms.
Patients will receive an ultrasound-guided saphenous nerve block, consisting of 13 ml of 0.5% bupivacaine (a local anesthetic), mixed with 1 mg of dexamethasone.
Total injection volume will be 15 ml.
|
有源比较器:Dexamethasone 4 mg
|
This is one of two treatment arms.
Patients will receive an ultrasound-guided saphenous nerve block, consisting of 13 ml of 0.5% bupivacaine (a local anesthetic), mixed with 4 mg of dexamethasone.
Total injection volume will be 15 ml.
|
研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
---|---|---|
Patient-perceived Duration of Analgesia
大体时间:Up to 2 days following surgery
|
After discharge, patients will be called and given instructions to help determine length of time of analgesia in the saphenous nerve distribution.
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Up to 2 days following surgery
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
---|---|---|
NRS (Numerical Rating Scale) Pain Scores
大体时间:Postoperative day 1
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Patients will be asked to rate, on a scale of 0-10, their pain while at rest.
0 indicates no pain, and 10 indicates the worst pain imaginable.
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Postoperative day 1
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Patient Satisfaction
大体时间:Up to 2 days following surgery
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Patients will be asked to rate satisfaction on a scale of 0-10 (0=completely dissatisfied, 10=completely satisfied);
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Up to 2 days following surgery
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Postoperative Morphine Consumption
大体时间:Up to 2 days following surgery
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Data collector will record how many opioids (i.e.
Percocet, Vicodin) the patient has used since discharge.
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Up to 2 days following surgery
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Opioid-Related Side Effects (Drowsiness)
大体时间:Up to 2 days following surgery
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Data collector will administer the Opioid-Related Distress Scale (OR-SDS) to determine if patients experience any opioid-related side effects (i.e.
drowsiness).
The OR-SDS score is on a scale of 0 to 4, with a higher number representing more severe symptoms.
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Up to 2 days following surgery
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合作者和调查者
调查人员
- 首席研究员:Mary F. Chisholm, MD、Hospital for Special Surgery, New York
出版物和有用的链接
一般刊物
- Vieira PA, Pulai I, Tsao GC, Manikantan P, Keller B, Connelly NR. Dexamethasone with bupivacaine increases duration of analgesia in ultrasound-guided interscalene brachial plexus blockade. Eur J Anaesthesiol. 2010 Mar;27(3):285-8. doi: 10.1097/EJA.0b013e3283350c38.
- Cummings KC 3rd, Napierkowski DE, Parra-Sanchez I, Kurz A, Dalton JE, Brems JJ, Sessler DI. Effect of dexamethasone on the duration of interscalene nerve blocks with ropivacaine or bupivacaine. Br J Anaesth. 2011 Sep;107(3):446-53. doi: 10.1093/bja/aer159. Epub 2011 Jun 14.
- Portenoy RK, Thaler HT, Kornblith AB, Lepore JM, Friedlander-Klar H, Kiyasu E, Sobel K, Coyle N, Kemeny N, Norton L, et al. The Memorial Symptom Assessment Scale: an instrument for the evaluation of symptom prevalence, characteristics and distress. Eur J Cancer. 1994;30A(9):1326-36. doi: 10.1016/0959-8049(94)90182-1.
- Apfelbaum JL, Gan TJ, Zhao S, Hanna DB, Chen C. Reliability and validity of the perioperative opioid-related symptom distress scale. Anesth Analg. 2004 Sep;99(3):699-709. doi: 10.1213/01.ANE.0000133143.60584.38.
- Lundblad M, Kapral S, Marhofer P, Lonnqvist PA. Ultrasound-guided infrapatellar nerve block in human volunteers: description of a novel technique. Br J Anaesth. 2006 Nov;97(5):710-4. doi: 10.1093/bja/ael241. Epub 2006 Sep 26.
- Akkaya T, Ersan O, Ozkan D, Sahiner Y, Akin M, Gumus H, Ates Y. Saphenous nerve block is an effective regional technique for post-menisectomy pain. Knee Surg Sports Traumatol Arthrosc. 2008 Sep;16(9):855-8. doi: 10.1007/s00167-008-0572-4. Epub 2008 Jun 24.
研究记录日期
研究主要日期
学习开始
初级完成 (实际的)
研究完成 (实际的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (估计)
研究记录更新
最后更新发布 (估计)
上次提交的符合 QC 标准的更新
最后验证
更多信息
与本研究相关的术语
关键字
其他相关的 MeSH 术语
其他研究编号
- IRB #2012-002
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Bupivacaine Only的临床试验
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University of Massachusetts, WorcesterAgency for Healthcare Research and Quality (AHRQ); Omnicare Clinical Research; Qualidigm完全的