Patient Positioning on Supraclavicular Nerve Block

This study is currently recruiting participants. (see Contacts and Locations)
Verified March 2014 by Northwestern University
Sponsor:
Information provided by (Responsible Party):
Antoun Nader, Northwestern University
ClinicalTrials.gov Identifier:
NCT01615952
First received: June 7, 2012
Last updated: March 18, 2014
Last verified: March 2014

June 7, 2012
March 18, 2014
January 2012
August 2014   (final data collection date for primary outcome measure)
patient positioning [ Time Frame: Postoperative Day One ] [ Designated as safety issue: No ]
Ultrasound measurements will be made at three different positions: Sitting, semi-sitting, and supine. The ultrasound measurements include A= skin to the pleura at the level lateral to the subclavian artery, B= skin to center of the subclavian artery, C= skin to first rib, D= skin to "corner pocket"
Same as current
Complete list of historical versions of study NCT01615952 on ClinicalTrials.gov Archive Site
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Patient Positioning on Supraclavicular Nerve Block
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Blockade of the brachial plexus using a supraclavicular approach provides excellent anesthesia for upper extremity surgery. The most serious complication specific to this block is pneumothorax. Subsequent modifications of this block including the use of ultrasound have lowered the risk from 6% to <1%. Case reports remain and authors have described certain factors and strategies to reduce this risk. Most texts and journals describe the patient in a supine or semi-sitting position during the block. At the investigators institution the investigators perform the block in a semi-sitting position to facilitate needle tip visibility with ultrasound. The investigators plan to obtain ultrasound anatomic measurements in three different positions (supine, semi-sitting, sitting) using patients consented for supraclavicular nerve blocks.

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Observational
Observational Model: Cohort
Time Perspective: Prospective
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Probability Sample

Patients 18 y/o to 65 y/o, who are scheduled to receive a ultrasound-guided supraclavicular nerve block as part of their postoperative pain management.

Nerve Block
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  • Sitting Position (head of bed 90 degrees)
    Ultrasound measurements will be performed. A= skin to the pleura at the level lateral to the subclavian artery, B= skin to center of the subclavian artery, C= skin to first rib, D= skin to "corner pocket"
  • Semi-sitting position (45 degrees)
    Ultrasound measurements will be performed. A= skin to the pleura at the level lateral to the subclavian artery, B= skin to center of the subclavian artery, C= skin to first rib, D= skin to "corner pocket"
  • Supine position
    Ultrasound measurements will be performed. A= skin to the pleura at the level lateral to the subclavian artery, B= skin to center of the subclavian artery, C= skin to first rib, D= skin to "corner pocket"
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*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Recruiting
63
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August 2014   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • all patients, 18 y/o to 65 y/o, who are scheduled to receive an ultrasound- guided supraclavicular nerve block

Exclusion Criteria:

  • patient refusal to be included in the study,
  • the presence of language barrier that inhibits proper communication with the patient, contraindications to regional anesthesia (local infection, severe pulmonary disease, or preexisting neuropathy)
  • history of allergy to amide local anesthetics or narcotics
  • the presence of a progressive neurological deficit
  • history of hepatorenal insufficiency
  • the presence of a coagulopathy or infection
  • pregnancy
  • a history of psychiatric disorder
  • inability to follow study protocol
Both
18 Years to 65 Years
No
Contact: Antoun Nader, MD 312/926-2280 a-nader2@northwestern.edu
United States
 
NCT01615952
STU00058413, Northwestern University
No
Antoun Nader, Northwestern University
Northwestern University
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Northwestern University
March 2014

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP