Chronic inflammatory demyelinating polyradiculoneuropathy associated with multiple sclerosis.
OBJECTIVE
To describe temporal profile of chronic inflammatory demyelinating polyradiculoneuropathy (CIDP) in patients with definite, relapsing multiple sclerosis (MS).


BACKGROUND
Peripheral demyelinating neuropathy has been rarely reported in association with central nervous system demyelinating disorder indistinguishable from MS.


METHODS
In addition to usual diagnostic studies for CIDP and MS in all 5 patients, we studied proximal segments of nerves using deep tendon reflex latency measurements of biceps reflex, patellar reflex, and ankle reflex.


RESULTS
All patients with MS subsequently (4-22 years) developed definite CIDP. Two of these patients developed multiple cranial nerve and spinal root enhancement on subsequent imaging without new intraparenchymal enhancement after a diagnosis of CIDP. The deep tendon reflex latencies were prolonged at more than 2 sites in all patients. Cerebral spinal fluid protein increased (70 +/- 19 to 144.8 +/- 17.4 mg/dL, P = 0.0001) at time of diagnosis of CIDP. Clinical improvement was observed in all patients after intravenous immunoglobulin therapy.


CONCLUSIONS
When patients with MS develop CIDP, manifestations of central and peripheral disease involvement seem to respond to intravenous immunoglobulin. These cases suggest that there may be common antigenic targets in central and peripheral nervous system in this subset of patients.
Sharma
Khema R
KR
Department of Neurology, University of Miami School of Medicine, Miami, FL 33136, USA.
Saadia
Daniela
D
Facca
Alicia G
AG
Bhatia
Rita
R
Ayyar
D Ram
DR
Sheremata
William
W
D000328:Adult; D000368:Aged; D004185:Disability Evaluation; D004576:Electromyography; D005260:Female; D006801:Humans; D016756:Immunoglobulins, Intravenous / Q000627:therapeutic use*; D007155:Immunologic Factors / Q000627:therapeutic use*; D008279:Magnetic Resonance Imaging; D008297:Male; D020529:Multiple Sclerosis, Relapsing-Remitting / Q000150:complications* / Q000628:therapy; D009431:Neural Conduction / Q000276:immunology; D017933:Peripheral Nervous System / Q000503:physiopathology; D020277:Polyradiculoneuropathy, Chronic Inflammatory Demyelinating / Q000150:complications / Q000175:diagnosis* / Q000473:pathology / Q000628:therapy; D012026:Reflex, Stretch; D012720:Severity of Illness Index; D013126:Spinal Nerve Roots / Q000503:physiopathology; D018709:Statistics, Nonparametric; D013997:Time Factors; D016896:Treatment Outcome
D016756:Immunoglobulins, Intravenous; D007155:Immunologic Factors