Are electrophysiological criteria useful in distinguishing childhood demyelinating neuropathies?

Autor: Anna, Potulska-Chromik, Barbara, Ryniewicz, Karolina, Aragon-Gawinska, Dagmara, Kabzinska, Andrzej, Seroka, Marta, Lipowska, Anna M, Kaminska, Anna, Kostera-Pruszczyk
Rok vydání: 2015
Předmět:
Zdroj: Journal of the peripheral nervous system : JPNS. 21(1)
ISSN: 1529-8027
Popis: Childhood chronic inflammatory demyelinating polyneuropathy (CIDP) needs to be differentiated from hereditary neuropathy. We aimed to validate existing CIDP nerve conduction study (NCS) criteria in a group of children with demyelinating neuropathies of chronic or subacute onset. Retrospective analysis of clinical and NCS results in 18 children with CIDP, 7 with hereditary neuropathy with pressure palsy (HNPP), and 24 with Charcot-Marie-Tooth 1a (CMT1a). AAN and EFNS electrodiagnostic CIDP criteria were fulfilled in 17 of 18 CIDP, 3 of 7 HNPP, and 23 of 24 CMT1a patients. A distal compound muscle action potential (dCMAP) of9 ms was observed in 14 of 18 CIDP patients but not in any patients with HNPP. Abnormal median/normal sural SNAP (AMNS) and a 10 m/s difference between conduction velocities (CV) of two corresponding nerves were not observed in any CMT1a patients. NCS in CMT1a, HNPP, and CIDP reflect demyelination. dCMAP duration, sensory AMNS, and a 10 m/s CV difference parameter are most useful in the differential diagnosis of pediatric CIDP.
Databáze: OpenAIRE