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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
  Purpose
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.

Condition
Nerve Block

Study Type: Observational
Study Design: Observational Model: Cohort
Time Perspective: Prospective

Further study details as provided by Antoun Nader, Northwestern University:

Primary Outcome Measures:
  • 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"


Enrollment: 6
Study Start Date: January 2012
Study Completion Date: November 2014
Primary Completion Date: November 2014 (Final data collection date for primary outcome measure)
Groups/Cohorts
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"

  Eligibility

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.


Ages Eligible for Study:   18 Years to 65 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
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.
Criteria

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
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01615952


Locations
United States, Illinois
Northwestern University Feingberg School of Medicine
Chicago, Illinois, United States, 60611
Sponsors and Collaborators
Northwestern University
  More Information

Responsible Party: Antoun Nader, Professor of Anesthesiology, Northwestern University
ClinicalTrials.gov Identifier: NCT01615952     History of Changes
Other Study ID Numbers: STU00058413
Northwestern University
First Submitted: June 7, 2012
First Posted: June 11, 2012
Last Update Posted: March 30, 2015
Last Verified: March 2015

Keywords provided by Antoun Nader, Northwestern University:
Supraclavicular Block