Table 2.

Neurologic clinical manifestations.

Neurological symptoms	n = 45	%
Paresthesia	40	88.9
Numbness	39	86.7
Dizziness	39	86.7
Headache	36	80
Subjective cognitive decline	31	68.9
Subjective weakness	25	55.6
Imbalance	19	42.2
Neurological conditions diagnosed	n = 45	%
Peripheral neuropathya	39	86.7
Small fiber neuropathyb	8	17.8
Dysautonomiac	10	22.2
Cognitive impairmentd	12	26.7
Trigeminal neuralgia	3	6.7
Electroencephalogram abnormalitye	2	4.4
Myelopathyf	1	2.2
Transient ischemic attackg	1	2.2

^aSix patients had sensorimotor neuropathy and 33 had sensory neuropathy.

^bSix patients showed positive skin biopsy. One patient was diagnosed based on clinical symptoms, evidence of small fiber neuropathy on a quantitative sensory test, and a normal nerve conduction test. One patient was diagnosed based on clinical symptoms, sudomotor dysfunction on autonomic tests, and a normal nerve conduction test.

^cTen patients were diagnosed using an autonomic test.

^dMontreal Cognitive Assessment (MoCA) score ≤ 25/30. Of the 45 patients included in this study, 22 underwent MoCA testing.

^eOne patient had intermittent irregular delta activity in the left anterior-midtemporal region. One patient had intermittent focal theta to delta slowing in the left frontotemporal region.

^fCervical myelopathy with position sense loss.

^gLikely due to a hypercoagulable state of unknown origin.