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

Table 3

Clinical, neurophysiological, and ultrasonographic data: lower limbs.

		No/minimal impairment; (independent)	Moderate impairment; (independent/unilateral support)	Severe impairment; (bilateral support/wheelchair)	value
Peroneal nerve
Motor CV (m/sec)	CIDP				0.006
	MMN				0.099
CMAP amplitude (mV)	CIDP				0.016
	MMN				0.110
CSA popliteal fossa (mm^2)	CIDP				0.045
	MMN				0.114
CSA fibular head (mm^2)	CIDP				0.227
	MMN				0.112
Tibial nerve
Motor CV (m/sec)	CIDP				0.121
	MMN				0.234
CMAP amplitude (mV)	CIDP				0.036
	MMN				0.048
CSA popliteal fossa (mm^2)	CIDP				0.037
	MMN				0.241
CSA ankle (mm^2)	CIDP				0.254
	MMN				0.032
Sural nerve
Sensory CV (m/sec)	CIDP				0.255
	MMN				0.441
SNAP amplitude (μV)	CIDP				0.111
	MMN				0.638
CSA ankle (mm^2)	CIDP				0.928
	MMN				0.958

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) lower limbs score: no/minimal impairment = 0; moderate impairment = 1-2; severe impairment = 3–5.
Significant difference () versus “no/minimal impairment.”
Significant difference () versus “severe impairment.”