Table 2.

Results of the nerve conduction study after thymoma resection and before steroid therapy.

Motor	DL (ms)	CMAP (D/P) (mV)	MCV (m/s)	F-Lat (ms)
Right median nerve	5.1*	9.0/8.2	51.3	36.6*
Right ulnar nerve	3.5*	8.1/7.3	54.1	36.8*
Right tibial nerve	5.6	12.1/7.9	39.6**	60.7*
Left median nerve	5.5*	7.8/7.0	51.3	35.9*
Left ulnar nerve	3.5*	6.0/5.7	47.2**	35.3*
Left tibial nerve	4.5	9.8/6.8	43.2	54.7
Sensory	SNAP (D/P) (μV)		SCV (D/P) (m/s)
Right median nerve	5.4**/4.3**		48.3/54.1
Right ulnar nerve	9.1**/6.6**		42.9**/51.4**
Right sural nerve	6.4		38.3**
Left median nerve	2.9**/1.4**		36.6**/54.1
Left ulnar nerve	7.0**/6.3**		46.3**/51.3**
Left sural nerve	3.5**		34.0**

^*over the normal limit;

^**below the normal limit.

CMAP, compound muscle action potential; D, distal; DL, distal latency; F-Lat, F-wave latency; MCV, motor nerve conduction velocity; P, proximal (above elbow in ulnar nerves); SCV, sensory nerve conduction velocity; SNAP, sensory nerve action potential.

Normal values: Median Nerve DL < 4.2, CMAP > 3.5, MCV > 48, F-Lat < 31; Ulnar Nerve DL < 3.4, CMAP > 2.8, MCV > 49, F-Lat < 32; Tibial Nerve DL < 6.0, CMAP > 2.9, MCV > 41, F-Lat < 58; Median Nerve SNAP (D/P) > 19/>16, SCV (D/P) > 44/>53; Ulnar Nerve SNAP (D/P) > 18/>14, SCV (D/P) >47/>54; Sural Nerve SNAP >3.8, SCV > 39.