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Patient Positioning on Supraclavicular Nerve Block

This study has been terminated.
(Lack of recruitment)
Sponsor:
ClinicalTrials.gov Identifier:
NCT01615952
First Posted: June 11, 2012
Last Update Posted: March 30, 2015
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
Antoun Nader, Northwestern University
June 7, 2012
June 11, 2012
March 30, 2015
January 2012
November 2014   (Final data collection date for primary outcome measure)
patient positioning [ Time Frame: Postoperative Day One ]
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.
 
Terminated
6
November 2014
November 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
Sexes Eligible for Study: All
18 Years to 65 Years   (Adult)
No
Contact information is only displayed when the study is recruiting subjects
United States
 
 
NCT01615952
STU00058413
Northwestern University
No
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Antoun Nader, Northwestern University
Northwestern University
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Northwestern University
March 2015