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

NCT01229683 | Completed

• 1 other identifier: Madison Block
• Study Type: observational
• Target: 62
• Locations: 1 country
• Sites: 1

Brief Summary

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

Conditions

Shoulder Surgery; Interscalene Nerve Block

Keywords

UCSD; Perineural Nerve Block; Shoulder Surgery; Pain; Grip Strength; Sensation; Interscalene Nerve Block

Study Arms (1)

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

Interventions

Interscalene Nerve Block PROCEDURE

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.

Shoulder Surgery

Eligibility Criteria

• Age: 18 Years+
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Study population will consist only of patients undergoing orthopedic shoulder surgery.

You may qualify if:

• 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

You may not qualify if:

• 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

Sponsors & Collaborators

• University of California, San Diego: lead

Study Sites (1)

UCSD Medical Centers (Hillcrest and Thornton)

San Diego, California, 92103, United States

Location

MeSH Terms

Conditions

Pain

Condition Hierarchy (Ancestors)

Neurologic Manifestations; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Officials

• Brian M Ilfeld, M.D., M.S.

  University of California, San Diego

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: CASE ONLY
• Time Perspective: PROSPECTIVE
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Associate Professor, In Residence

Study Record Dates

• First Submitted: October 27, 2010
• First Posted: October 28, 2010
• Study Start: October 1, 2010
• Primary Completion: August 1, 2011
• Study Completion: March 1, 2012
• Last Updated: March 8, 2012

Record last verified: 2012-03

Locations

US (1)