the Analgesic Duration of Dexmedetomidine Compared to Dexamethasone as Adjuncts to Single Shot Interscalene Block
NCT ID: NCT02653144
Last Updated: 2020-07-22
Study Results
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View full resultsBasic Information
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COMPLETED
PHASE4
105 participants
INTERVENTIONAL
2016-03-31
2018-11-27
Brief Summary
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Detailed Description
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Dexmedetomidine is a highly selective alpha-2 agonist that is commonly used in patients undergoing anesthesia or requiring sedation in a non-operative setting. As a peripherally administered medication, it has both sedating and analgesic properties, as well as the added benefit of avoidance of respiratory depression. Although it can rarely produce cardiac depression at high doses, its side effect profile is otherwise minimal and is generally very well tolerated by most patients. When administered peripherally, dexmedetomidine has most commonly been associated with side effects such as hypotension, respiratory depression, and bradycardia - although all at significantly higher doses than planned in our study. The safe use of perineural dexmedetomidine together with local anesthetics has been described on numerous occasions. Nevertheless, although it has been shown to potentiate peripheral nerve blockade and prolong duration of analgesia in various studies , it remains rarely used as an adjunct to regional anesthesia.
Conditions
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Study Design
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RANDOMIZED
PARALLEL
TREATMENT
DOUBLE
Study Groups
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dexmedetomidine and ropivacaine group
In this group, participants will undergo pre-operative single shot interscalene nerve block under ultrasound guidance and peripheral nerve stimulation with Ropivacaine 0.5% 20ml + 75mcg of dexmedetomidine
Ropivacaine
local anesthetics adjuvants. Ropivacaine 0.5% 20ml. pre-operative single shot interscalene nerve block under ultrasound guidance and peripheral nerve stimulation in patients undergoing ambulatory shoulder surgery
Dexmedetomidine
local anesthetics adjuvants. 75mcg of dexmedetomidine. pre-operative single shot interscalene nerve block under ultrasound guidance and peripheral nerve stimulation in patients undergoing ambulatory shoulder surgery
dexamethasone and ropivacaine group
In this group, participants will undergo pre-operative single shot interscalene nerve block under ultrasound guidance and peripheral nerve stimulation with. Ropivacaine 0.5% 20ml + 4mg dexamethasone
Ropivacaine
local anesthetics adjuvants. Ropivacaine 0.5% 20ml. pre-operative single shot interscalene nerve block under ultrasound guidance and peripheral nerve stimulation in patients undergoing ambulatory shoulder surgery
Dexamethasone
local anesthetics adjuvants. 4mg dexamethasone. pre-operative single shot interscalene nerve block under ultrasound guidance and peripheral nerve stimulation in patients undergoing ambulatory shoulder surgery
ropivacaine only group
In this group, participants will undergo pre-operative single shot interscalene nerve block under ultrasound guidance and peripheral nerve stimulation with Ropivacaine 0.5% 20ml (acting as control)
Ropivacaine
local anesthetics adjuvants. Ropivacaine 0.5% 20ml. pre-operative single shot interscalene nerve block under ultrasound guidance and peripheral nerve stimulation in patients undergoing ambulatory shoulder surgery
Interventions
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Ropivacaine
local anesthetics adjuvants. Ropivacaine 0.5% 20ml. pre-operative single shot interscalene nerve block under ultrasound guidance and peripheral nerve stimulation in patients undergoing ambulatory shoulder surgery
Dexmedetomidine
local anesthetics adjuvants. 75mcg of dexmedetomidine. pre-operative single shot interscalene nerve block under ultrasound guidance and peripheral nerve stimulation in patients undergoing ambulatory shoulder surgery
Dexamethasone
local anesthetics adjuvants. 4mg dexamethasone. pre-operative single shot interscalene nerve block under ultrasound guidance and peripheral nerve stimulation in patients undergoing ambulatory shoulder surgery
Other Intervention Names
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Eligibility Criteria
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Inclusion Criteria
* 18-60 years old
* Patients scheduled for ambulatory arthroscopic or open surgery
Exclusion Criteria
* Pre-existing pain disorder
* Regular consumption of chronic pain medication
* Anatomical abnormalities of upper extremity
* Known allergy or hypersensitivity to Ropivacaine or other amide local anesthetics
* Known allergy to dexmedetomidine
* Coagulopathy
* Uncontrolled Diabetes
18 Years
60 Years
ALL
No
Sponsors
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Montefiore Medical Center
OTHER
Responsible Party
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Amaresh Vydynathan
Assoc. Prof. Anesthesiology
Principal Investigators
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Amaresh Vydyanathan, MD
Role: PRINCIPAL_INVESTIGATOR
Montefiore Medical Center
Locations
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Montefiore Medical Center
The Bronx, New York, United States
Countries
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References
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Brummett CM, Williams BA. Additives to local anesthetics for peripheral nerve blockade. Int Anesthesiol Clin. 2011 Fall;49(4):104-16. doi: 10.1097/AIA.0b013e31820e4a49.
Marhofer D, Kettner SC, Marhofer P, Pils S, Weber M, Zeitlinger M. Dexmedetomidine as an adjuvant to ropivacaine prolongs peripheral nerve block: a volunteer study. Br J Anaesth. 2013 Mar;110(3):438-42. doi: 10.1093/bja/aes400. Epub 2012 Nov 15.
Fritsch G, Danninger T, Allerberger K, Tsodikov A, Felder TK, Kapeller M, Gerner P, Brummett CM. Dexmedetomidine added to ropivacaine extends the duration of interscalene brachial plexus blocks for elective shoulder surgery when compared with ropivacaine alone: a single-center, prospective, triple-blind, randomized controlled trial. Reg Anesth Pain Med. 2014 Jan-Feb;39(1):37-47. doi: 10.1097/AAP.0000000000000033.
Esmaoglu A, Yegenoglu F, Akin A, Turk CY. Dexmedetomidine added to levobupivacaine prolongs axillary brachial plexus block. Anesth Analg. 2010 Dec;111(6):1548-51. doi: 10.1213/ANE.0b013e3181fa3095. Epub 2010 Oct 1.
Ironfield CM, Barrington MJ, Kluger R, Sites B. Are patients satisfied after peripheral nerve blockade? Results from an International Registry of Regional Anesthesia. Reg Anesth Pain Med. 2014 Jan-Feb;39(1):48-55. doi: 10.1097/AAP.0000000000000038.
Rasmussen SB, Saied NN, Bowens C Jr, Mercaldo ND, Schildcrout JS, Malchow RJ. Duration of upper and lower extremity peripheral nerve blockade is prolonged with dexamethasone when added to ropivacaine: a retrospective database analysis. Pain Med. 2013 Aug;14(8):1239-47. doi: 10.1111/pme.12150. Epub 2013 Jun 11.
Williams BA, Schott NJ, Mangione MP, Ibinson JW. Perineural dexamethasone and multimodal perineural analgesia: how much is too much? Anesth Analg. 2014 May;118(5):912-4. doi: 10.1213/ANE.0000000000000203. No abstract available.
Provided Documents
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Document Type: Study Protocol and Statistical Analysis Plan
Other Identifiers
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2015-5628
Identifier Type: -
Identifier Source: org_study_id
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