Table 2.

Number of abnormal upper-limb SNAP in demyelinating and axonal GBS with sural-sparing in patients receiving bilateral sensory NCS of the upper limbs.

GBS subtypes (N)	Bilateral sensory NCS$
	Number of patients with sural sparing	Number of abnormal upper limb SNAP
		6	5	4	3	2	1
Rajabally’s criteria with temporal dispersion
First classification vS first sensory NCS
De (45)	21	2	1	7	5	4	2
Ax (10)	3	0	0	0	0	0	3
Eq (20)	8	0	0	2	0	2	4
Final classification vS any sensory NCS$$
De (52)	29	2	2	9	7	5	4
Ax (11)	4	0	0	0	0	1	3
Eq (17)	7	0	0	2	1	1	3
Uncini’s criteria
Final classification vS first sensory NCS
De (50)	23	2	1	6	5	5	4
Ax (8)	2	0	0	0	0	0	2
Eq (17)	7	0	0	3	0	1	3
Final classification vS any sensory NCS $$
De (54)	30	2	2	9	7	5	5
Ax (9)	2	0	0	0	0	0	2
Eq (17)	8	0	0	3	0	2	3
Concordance by two criteria
Final classification vS any sensory NCS$$
De (51)	28	2	2	9	6	5	4
Ax (7)	2	0	0	0	0	0	2
Eq (13)	6	0	0	2	0	1	3

SNAP, sensory nerve action potential; GBS, Guillain Barre syndrome; NCS, nerve conduction study; N, number; De, demyelinating; Ax, axonal; Eq, equivocal;

$including bilateral median, bilateral ulnar and bilateral radial nerves;

$$any sensory NCS in first or follow-up electrodiagnostic study that showed sural-sparing patterns.