Neuromuscular Ultrasound in Correlation to Neurophysiological Findings

Status Not yet recruiting

Clinical Trial Summary

1. Study the neuromuscular ultrasound findings in different types of neuropathies

2. correlation between ultrasound and neurophysiological findings in peripheral nerve diseases

3. correlation between clinical pain scale and severity of neuropathy

Clinical Trial Description

Ultrasonography is a diagnostic tool that is increasingly used in the work-up of peripheral nerve disease.

As many peripheral nerves run a superficial course, especially in the arms. This is a big advantage over Magnetic Resonance Imaging that is relatively expensive, time consuming and not readily available everywhere.

Nerve cross-sectional area (CSA) can be determined at multiple sites along the nerve.

CSA can be measured at entrapment sites but also at nonentrapment sites. vascularization, echogenicity, fascicular pattern and endoneurial thickness can be investigated as well. All those modalities can give critical insight in the origin and development of various peripheral neuropathies1,2,3

Major peripheral nerves in the extremities, such as the median,ulnar thick enough to reflect the sound beam, resulting in hyperechoic on the US scan 4.

The correlation between nerve conduction study parameters and CSA in ultrasound Ultrasound of the peripheral nervous system is an additional useful diagnostic tool in neuromuscular disorders..5,6,7,8,9 In the longitudinal plane, nerves present as long, slim structures with a mixture of parallel hypoechoic and hyperechoic lines.

Nerves must be distinguished from other nearby structures to ensure correct identification Muscles are hypoechoic and interspersed with small hyperechoic foci which easily distinguishes muscles from nerves. Tendons, which are sometimes adjacent to nerves, move proportionately with joint movement.

US has higher specificity than sensitivity in differentiating myopathic and neuropathic changes The most sensitive diagnostic marker for symptomatic carpal tunnel syndrome patients is an enlarged crosssectional area of the median nerve 10,11,12 ;

Study Design

Related Conditions & MeSH terms

Clinical Trial Details

NCT number	NCT04092140
Study type	Observational
Source	Assiut University
Contact
Status	Not yet recruiting
Phase
Start date	October 1, 2019
Completion date	November 2022

View Details

See also
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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.