Research Article

Peripheral Nerve Ultrasonography in Chronic Inflammatory Demyelinating Polyradiculoneuropathy and Multifocal Motor Neuropathy: Correlations with Clinical and Neurophysiological Data

Table 4

Clinical, neurophysiological, and ultrasonographic data: upper limbs.

No/minimal impairmentModerate impairmentSevere impairment value

Median nerve
Motor CV (m/sec)CIDP0.129
MMN0.631

CMAP amplitude (mV)CIDP0.007
MMN0.034

Sensory CV (m/sec)CIDP0.509
MMN0.738

SNAP amplitude (μV)CIDP0.236
MMN0.267

(mm2)CIDP0.163
MMN0.129

Intranerve variabilityCIDP0.462
MMN0.263

Ulnar nerve
Motor CV (m/sec)CIDP0.091
MMN0.099

CMAP amplitude (mV)CIDP0.004
MMN0.045

Sensory CV (m/sec)CIDP0.133
MMN0.688

SNAP amplitude (μV)CIDP0.031
MMN0.256

(mm2)CIDP0.038
MMN0.362

Intranerve variabilityCIDP0.014
MMN0.043

Results are reported as average ± standard deviation.
CMAP: compound muscle action potential.
CSA: cross-sectional area.
CV: conduction velocity.
SNAP: sensory action potential.
INCAT (inflammatory neuropathy cause and treatment) upper limbs score: no/minimal impairment = 0-1; moderate impairment = 2; severe impairment = 3–5.
Significant difference () versus “no/minimal impairment.”
Significant difference () versus “severe impairment.”