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Effects of Interscalene Brachial Plexus Nerve Blocks on the Hand and Forearm

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ClinicalTrials.gov Identifier: NCT01229683
Recruitment Status : Completed
First Posted : October 28, 2010
Last Update Posted : March 8, 2012
Sponsor:
Information provided by (Responsible Party):
Brian M. Ilfeld, MD, MS, University of California, San Diego

Brief Summary:
Research study to determine the proportion of cases in which an interscalene brachial plexus nerve block produces hand and forearm anesthesia.

Condition or disease Intervention/treatment
Shoulder Surgery Interscalene Nerve Block Procedure: Interscalene Nerve Block

Detailed Description:
This is a research study to prospectively determine the proportion of cases in which an interscalene brachial plexus nerve block produces hand and forearm anesthesia. The investigators will investigate this issue in patients having shoulder and not hand/forearm surgery. We will test hand grip strength and sensation to determine if the hand and forearm are responding to the anesthesia.

Study Type : Observational
Actual Enrollment : 62 participants
Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Effects of Interscalene Brachial Plexus Nerve Blocks on the Hand and Forearm
Study Start Date : October 2010
Actual Primary Completion Date : August 2011
Actual Study Completion Date : March 2012

Group/Cohort Intervention/treatment
Shoulder Surgery
Patients will be given an interscalene nerve block and then strength and sensation of the hand and forearm will be tested to determine if the block is helping to anesthetize these areas.
Procedure: Interscalene Nerve Block
Patients undergoing shoulder surgery will be given an Interscalene Nerve Block. The patients' strength and sensation in their hand and forearm will be tested to determine if the nerve block is affectively delivering anesthetic to the nerves that serve these areas.




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Ages Eligible for Study:   18 Years and older   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Study population will consist only of patients undergoing orthopedic shoulder surgery.
Criteria

Inclusion Criteria:

  • 18 years of age or older
  • unilateral orthopedic shoulder surgery
  • already desiring an interscalene brachial plexus nerve block for postoperative analgesia with the anesthetic plan including a preoperative interscalene nerve block with mepivacaine

Exclusion Criteria:

  • any known contraindication to study medications or testing hand grip strength pre/post-op
  • insulin-dependent diabetes mellitus
  • neuropathy of any etiology in the affected extremity
  • any anticipated incision site apart from the shoulder
  • Obesity
  • Pregnancy
  • Incarceration
  • inability to communicate with the investigators and hospital staff

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): NCT01229683


Locations
United States, California
UCSD Medical Centers (Hillcrest and Thornton)
San Diego, California, United States, 92103
Sponsors and Collaborators
University of California, San Diego
Investigators
Principal Investigator: Brian M Ilfeld, M.D., M.S. University of California, San Diego

Responsible Party: Brian M. Ilfeld, MD, MS, Associate Professor, In Residence, University of California, San Diego
ClinicalTrials.gov Identifier: NCT01229683     History of Changes
Other Study ID Numbers: Madison Block
First Posted: October 28, 2010    Key Record Dates
Last Update Posted: March 8, 2012
Last Verified: March 2012

Keywords provided by Brian M. Ilfeld, MD, MS, University of California, San Diego:
UCSD
Perineural Nerve Block
Shoulder Surgery
Pain
Grip Strength
Sensation
Interscalene Nerve Block