Nerve conduction study of the three supraclavicular nerve branches

• Introduction: We describe a new nerve conduction study technique with reference values for the 3 branches of the supraclavicular nerve (SCN) in young healthy subjects and application of it in 2 patients.Methods: The recording electrode was placed on the posterior border of the sternocleidomastoid muscle, 6–7 cm from the sternoclavicular joint. SCN branches were stimulated below the clavicle, 2.5, 7, and 10.5 cm lateral to the sternoclavicular joint.Results: Twenty healthy volunteers (10 men), 19–38 years, mean 25.9 years (SD 6.3), and 2 patients with SCN lesions were studied. The mean conduction velocities of the SCN branches were 70–78 m/s (SD 8–10 m/s), and amplitudes 3–4 µV (SD 0.9–2.0 µV). There were no side‐to‐side or gender differences.Discussion: The 3 SCN branches could be studied in all subjects. We provide reference values for young subjects. This new method was useful in verifying SCN lesions in 2 patients.

Subject headings

MEDICIN OCH HÄLSOVETENSKAP  -- Medicinska och farmaceutiska grundvetenskaper -- Neurovetenskaper (hsv//swe)

MEDICAL AND HEALTH SCIENCES  -- Basic Medicine -- Neurosciences (hsv//eng)

Keyword

neuralgic amyotrophy

Parsonage-Turner syndrome

reference values

sensory nerve conduction study

sensory neurography

supraclavicular nerve

Publication and Content Type

ref (subject category)

art (subject category)