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Clinical Trials/NCT02383134
NCT02383134UnknownNot Applicable

The Maximum Effective Needle-to-Nerve Distance for Anesthetic Ultrasound-Guided Supraclavicular Brachial Plexus Block

Tunisian Military Hospital0 sites44 target enrollmentStarted: May 2015Last updated:
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Conditions

Trial Snapshot

Phase
Not Applicable
Sponsor
Enrollment
44
Primary Endpoint
Success of the ultrasound guided supraclavicular block at 30 minutes after injection at a specific distance of the needle tip from the outer sheeth of the nerve
Study OverviewStudy DesignEligibility CriteriaOutcomesInvestigatorsRecords & IdentifiersSimilar Trials

Study Overview

Brief Summary

The achievement of peripheral nerve block requires several needle passes, with each of them being at risk of causing nerve injury either by direct trauma or intraneural injection even with the use of the ultrasound.

The ultrasound guided supraclavicular brachial plexus block is known to be at risk of pneumothorax and / or nerve injury.

This study is designed to determine the maximal effective distance away from the nerve for the injection to be effective.

Study Design

Study Type
Observational
Time Perspective
Prospective

Eligibility Criteria

Ages
18 Years to 85 Years (Adult, Older Adult)
Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • •ASA physical status I-III
  • •18-85 years of age, inclusive
  • •surgery less than 3 hours

Exclusion Criteria

  • •contraindications to brachial plexus block (e.g., allergy to local anesthetics, coagulopathy, malignancy or infection in the area)
  • •existing neurological deficit in the area to be blocked
  • •pregnancy
  • •history of neck surgery or radiotherapy
  • •inability to understand the informed consent and demands of the study

Outcomes

Primary Outcomes

Success of the ultrasound guided supraclavicular block at 30 minutes after injection at a specific distance of the needle tip from the outer sheeth of the nerve

Time Frame: 30 minutes

Secondary Outcomes

  • •The onset time of sensory and motor block(the block success will be assessed for each patient every 5 min for 30 mins in the operating room beginning when the needle exits the skin)
  • The proportion of inadequate and failed blocks.(the block success will be assessed for each patient every 5 min for 30 mins in the operating room beginning when the needle exits the skin)
  • The presence of other complications such as hematoma, infection, pneumothorax.(up to 48 hours post operative.)

Investigators

Sponsor
Tunisian Military Hospital
Sponsor Class
Other
Responsible Party
Principal Investigator
Principal Investigator

Dr trabelsi walid

associate professor, MD

Tunisian Military Hospital

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