NERVE CONDUCTION STUDIES IN SPASTIC PARAPLEGIA, OPTIC ATROPHY, AND NEUROPATHY (SPOAN) SYNDROME
NERVE CONDUCTION STUDIES IN SPASTIC PARAPLEGIA, OPTIC ATROPHY, AND NEUROPATHY (SPOAN) SYNDROME
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DOI:
10.1002/mus.24087
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发表时间:
2014-01-01
期刊:
影响因子:
3.4
通讯作者:
Kok, Fernando
中科院分区:
文献类型:
--
作者:
Amorim, Simone;Heise, Carlos Otto;Kok, Fernando
Introduction: SPOAN (spastic paraplegia, optic atrophy, and neuropathy) syndrome is an autosomal recessive neurodegenerative disorder identified in a large consanguineous Brazilian family. Methods: Twenty-seven patients with SPOAN syndrome (20 women), aged 4-58 years, underwent nerve conduction studies (NCS) of the median, ulnar, tibial, and fibular nerves, and sensory NCS of the median, ulnar, radial, sural, and superficial fibular nerves. Results: Sensory nerve action potentials were absent in the lower limbs and absent in >80% of upper limbs. Motor NCS had reduced amplitudes and borderline velocities in the upper limbs and absent compound muscle action potentials (CMAPs) in the lower limbs. Conclusions: The neuropathy in SPOAN syndrome is a severe, early-onset sensory-motor axonal polyneuropathy. Normal NCS seem to rule-out this condition. Muscle Nerve49: 131-133, 2014