A Novel Selective Block of the Suprascapular Nerve
1 other identifier
interventional
30
1 country
1
Brief Summary
Patients who receive the lateral and sagittal infraclavicular block (LSIB) tend to supinate their hand and forearm which may hamper optimal positioning for surgery of the dorsal side of the hand. The investigators think that this supination is caused by lateral rotation in the shoulder. The main lateral rotator of the shoulder is the infraspinatus muscle, which is innervated by the suprascapular nerve (SSN).The investigators hypothesized that optimal positioning of the hand for surgery on the dorsal side of the hand may be achieved by performing a SSN block (SSNB) in addition to the LSIB.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_4
Started Jan 2014
Shorter than P25 for phase_4
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
January 1, 2014
CompletedFirst Submitted
Initial submission to the registry
January 12, 2014
CompletedFirst Posted
Study publicly available on registry
January 14, 2014
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2014
CompletedStudy Completion
Last participant's last visit for all outcomes
June 1, 2014
CompletedJune 17, 2014
June 1, 2014
5 months
January 12, 2014
June 16, 2014
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Wrist angle
The investigators will assess the wrist angle 30 minutes after the two blocks (LSIB + SSNB)
30 minutes
Secondary Outcomes (1)
Satisfaction score
3 hours
Study Arms (2)
LSIB +SSNB
ACTIVE COMPARATORPatients will receive LSIB (31 ml ropivacaine 7.5 mg/ml)+ SSNB (4 ml Ropivacaine 5 mg/ml)
LSIB + placebo
PLACEBO COMPARATORPatients will receive LSIB (31 ml ropivacaine 7.5 mg/ml) + SSNB (4 ml saline)
Interventions
Patients will receive LSIB (31 ml ropivacaine 7.5 mg/ml)+ SSNB (4 ml Ropivacaine 5 mg/ml) or LSIB (31 ml ropivacaine 7.5 mg/ml)+ SSNB (4 ml placebo, saline)
Eligibility Criteria
You may qualify if:
- Patients with American Society of Anesthesiologists physical status (ASA) I- III
- age between 18 and 70 years
- body mass index between 20 and 36 kg/m2 scheduled for elective hand surgery.
You may not qualify if:
- We will measure the angle between wrist and horizontal plane while the patient is supine and the extended arm 75° abducted.
- Patient who are not able to pronate the hand ≤15° before block performance, will be excluded from the study.
- Patients will also be excluded if they are pregnant, have contraindications to regional anesthesia, coagulation disorder, allergy to local anesthetics (LA), atrioventricular block, peripheral neuropathy or drug-treated diabetes.
- Patients using other anticoagulation drugs than acetylsalicylic acids or dipyridamol will be excluded.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University Hospital of North Norwaylead
- University of Tromsocollaborator
Study Sites (1)
University Hospital of North Norway
Tromsø, Troms, 9038, Norway
Related Publications (2)
Hackworth RJ. A new and simplified approach to target the suprascapular nerve with ultrasound. J Clin Anesth. 2013 Jun;25(4):347-8. doi: 10.1016/j.jclinane.2013.01.006. Epub 2013 May 1. No abstract available.
PMID: 23643887BACKGROUNDSiegenthaler A, Moriggl B, Mlekusch S, Schliessbach J, Haug M, Curatolo M, Eichenberger U. Ultrasound-guided suprascapular nerve block, description of a novel supraclavicular approach. Reg Anesth Pain Med. 2012 May-Jun;37(3):325-8. doi: 10.1097/AAP.0b013e3182409168.
PMID: 22222688BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Lars M Ytrebø, Professor
University Hospital of North Norway
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- QUADRUPLE
- Who Masked
- PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor
Study Record Dates
First Submitted
January 12, 2014
First Posted
January 14, 2014
Study Start
January 1, 2014
Primary Completion
June 1, 2014
Study Completion
June 1, 2014
Last Updated
June 17, 2014
Record last verified: 2014-06