Facial Involuntary Movements and Respiratory Failure in CANOMAD, Responsive to IVIG Therapy

Table 1

Nerve conduction studies performed during an exacerbation of CANOMAD.

(a)

Motor nerve conduction
Nerve	Latency	Amplitude	Conduction velocity
Median R (wrist)	8.9 ms	1.3 mV
Median R (elbow)	18.5 ms	0.8 mV	24 m/s
Ulnar R (wrist)	4.4 ms	6.9 mV
Ulnar R (below elbow)	10.4 ms	5.7 mV	38 m/s
Ulnar R (above elbow)	13.4 ms	3.3 mV	33 m/s
Tibial R (ankle)	6.2 ms	3.4 mV
Tibial R (popliteal fossa)	23.1 ms	0.7 mV	24 m/s

(b)

F waves
Nerve	M latency	F latency
Ulnar right	4.4	42.7
Ulnar left	4	48
Tibial right	5.5	0
Tibial left	6.9	76.6

(c)

Sensory nerve conduction
Right median, right and left ulnar, left median, left radial, and right and left sural nerves (not recordable)