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.
調査の概要
状態
研究の種類
入学 (実際)
段階
- フェーズ 4
連絡先と場所
研究場所
-
-
New York
-
New York、New York、アメリカ、10021
- Hospital for Special Surgery
-
-
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
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).
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:処理
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:ダブル
武器と介入
参加者グループ / アーム |
介入・治療 |
---|---|
プラセボコンパレーター:コントロール
|
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).
|
アクティブコンパレータ: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.
|
アクティブコンパレータ: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.
|
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
---|---|---|
Patient-perceived Duration of Analgesia
時間枠: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.
|
Up to 2 days following surgery
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
---|---|---|
NRS (Numerical Rating Scale) Pain Scores
時間枠:Postoperative day 1
|
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.
|
Postoperative day 1
|
Patient Satisfaction
時間枠:Up to 2 days following surgery
|
Patients will be asked to rate satisfaction on a scale of 0-10 (0=completely dissatisfied, 10=completely satisfied);
|
Up to 2 days following surgery
|
Postoperative Morphine Consumption
時間枠:Up to 2 days following surgery
|
Data collector will record how many opioids (i.e.
Percocet, Vicodin) the patient has used since discharge.
|
Up to 2 days following surgery
|
Opioid-Related Side Effects (Drowsiness)
時間枠:Up to 2 days following surgery
|
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.
|
Up to 2 days following surgery
|
協力者と研究者
捜査官
- 主任研究者:Mary F. Chisholm, MD、Hospital for Special Surgery, New York
出版物と役立つリンク
一般刊行物
- 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.
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
キーワード
追加の関連 MeSH 用語
その他の研究ID番号
- IRB #2012-002
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