The Impact of Nerve Cross Section Area on Sensory Block Onset

Jose Aguirre

Status: Completed

Conditions: Regional Anesthesia

Treatments: Procedure: Dominant Arm; Procedure: Non-dominant arm

Study type: Interventional

Funder types: Other

Identifiers

NCT03797235

BASEC 2018-00939

Details and patient eligibility

About

The study aims to describe a correlation between the nerve cross section and the sensory or motor block onset time. Therefore, different nerve cross sections with their Motor and sensory onset times are compared in order to find a correlation.

In the case of discovering a correlation, this could be translated into clinical practice, where a more tailored and individualized approach to performing peripheral nerve blocks would be possible, thus lowering the risks of adverse events occurring.

Enrollment: 15 patients

Sex: All

Ages: 18 to 64 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• ASA I - II, both sexes
• ≥ 18 years old
• < 65 years old
• Written informed consent as documented by signature

Exclusion criteria

• Known allergy or hypersensitivity to a study drug or class of drug.
• Severe coagulopathy.
• History of alcohol abuse or the intake of psychotropic drugs.
• Pregnancy.
• Infection at the injection site or a systemic infection.
• Fever of unknown origin.
• Motor or sensory abnormalities in the arm.
• Previous enrollment into the current study

Trial design

Primary purpose: Other

Allocation: Randomized

Interventional model: Crossover Assignment

Masking: Single Blind

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15 participants in 2 patient groups

Dominant Arm

Experimental group

Description:

Two ultrasound guided nerve blocks (block of the ulnar and median nerve) on the dominant forearm

Treatment:

Procedure: Dominant Arm

Non-dominant arm

Active Comparator group

Description:

Two ultrasound guided nerve blocks (block of the ulnar and median nerve) on the non-dominant forearm.

Treatment:

Procedure: Non-dominant arm