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

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

62 participants

Study Classification

OBSERVATIONAL

Study Start Date

2010-10-31

Study Completion Date

2012-03-31

Brief Summary

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

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Detailed Description

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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.

Conditions

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Shoulder Surgery Interscalene Nerve Block

Study Design

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Observational Model Type

CASE_ONLY

Study Time Perspective

PROSPECTIVE

Study Groups

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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.

Interscalene Nerve Block

Intervention Type 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.

Interventions

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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.

Intervention Type PROCEDURE

Eligibility Criteria

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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

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No