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The Effect of Brachial Plexus Nerve Block on Distal Peripheral Nerve Conduction

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ClinicalTrials.gov Identifier: NCT01716078
Recruitment Status : Withdrawn
First Posted : October 29, 2012
Last Update Posted : January 29, 2016
Sponsor:
Information provided by (Responsible Party):
Defense and Veterans Center for Integrative Pain Management

October 17, 2012
October 29, 2012
January 29, 2016
November 2011
September 2014   (Final data collection date for primary outcome measure)
Compund Muscle Action Potential (CMAP) amplitude [ Time Frame: 1 day ]
measured for motor studies from baseline to peak in mV
Same as current
Complete list of historical versions of study NCT01716078 on ClinicalTrials.gov Archive Site
  • Distal Latency [ Time Frame: 1 day ]
    the interval between the stimulation of a compound muscle and the observed response. Normal nerve conduction velocity is above 40 m/sec in the lower extremities and above 50 m/sec in the upper extremities, but age, muscle disease, temperature, and other factors can influence the velocity.
  • Peak Latency [ Time Frame: 1 day ]
    • This represents conduction along the majority of the axons
    • It is recorded at the peak of the waveform response
  • Onset Latency [ Time Frame: 1 day ]
    • This represents conduction along the fastest axons
    • It is recorded at the initial deflection from baseline
Same as current
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The Effect of Brachial Plexus Nerve Block on Distal Peripheral Nerve Conduction
The Effect of Brachial Plexus Nerve Block on Distal Peripheral Nerve Conduction
The purpose of this study is to determine the conducting ability of distal extremity nerves after a supraclavicular brachial plexus nerve block (with local anesthetic) has been placed at a more proximal location in the upper extremity.
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Observational
Observational Model: Cohort
Time Perspective: Prospective
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Non-Probability Sample
Male and female military health care beneficiaries age 18 years and older presenting for hand surgery and eligible for a brachial plexus nerve block will be asked to participate in this study.
Anesthesia
Not Provided
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*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Withdrawn
0
30
Not Provided
September 2014   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Male and female military health care beneficiaries 18 years and older, capable of providing informed consent indicating awareness of the investigational nature of the study, in keeping with institutional policy
  • Written informed consent must be obtained from each patient prior to entering the study
  • Patients must be willing to have a regional anesthetic nerve block placed prior to their scheduled procedure
  • Patients must be willing to have neurodiagnostic tests performed prior to placement and after placement of the regional anesthesia nerve block

Exclusion Criteria:

  • Refusal to have a brachial plexus nerve block placed
  • Refusal to have serial nerve conduction studies performed
  • Contraindication for a regional anesthesia nerve block (allergy to local anesthetic, infection at site of injection, elevated coagulation time)
  • Presence of conditions affecting the hand or arm (e.g., injury, infection) that might preclude the performance of nerve conduction studies
  • Presence of known major abnormalities of nerve conduction, e.g., absent median sensory potential in a patient scheduled for carpal tunnel release
  • Presence of conditions affecting the contralateral hand or arm (e.g., injury, infection) that might preclude the performance of sensory and motor studies to test block or absence of a contralateral upper extremity
Sexes Eligible for Study: All
18 Years and older   (Adult, Older Adult)
No
Contact information is only displayed when the study is recruiting subjects
United States
 
 
NCT01716078
365681-8
No
Not Provided
Not Provided
Defense and Veterans Center for Integrative Pain Management
Defense and Veterans Center for Integrative Pain Management
Not Provided
Not Provided
Defense and Veterans Center for Integrative Pain Management
January 2016