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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6-7
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pubmed:dateCreated |
1992-12-29
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pubmed:abstractText |
The clinical and electrophysiological data of 18 consecutive adult patients with paraneoplastic Lambert-Eaton myasthenic syndrome (LMES) have been reviewed. The cancer associated with LEMS was small-cell lung carcinoma (SCLC) in 15 cases and epidermoid lung carcinoma in 3 cases. The main clinical neurological features were proximal lower limb weakness (100%), depressed tendon reflexes (94%) and dryness of the mouth (66%). The results of repetitive nerve stimulation (RNS) were not statistically different in the paraneoplastic LEMS group and in a group of 6 LMS patients in whom no carcinoma had been detected. Low-amplitude compound muscle action potential (CMAP) was present in all cases; decremental response at low stimulation rates was present in 13/15 cases. An abnormal incremental response at high stimulation rates was observed in all cases. A close correlation between CMAP amplitude and clinical condition was found in 4 cases during the long-term follow-up. In one patient the RNS electrical pattern could be misinterpreted as myasthenia gravis in only one muscle tested. We underline the usefulness of a 50 Hz stimulation during 4 seconds to establish the diagnosis unequivocally, and that of post-exercise facilitation in routine detection among an SCLC population. Our results suggest that CAMP amplitude and RNS test could be used to evaluate the short-term improvement of LMS under treatment and, in some cases, for the long-term follow-up. The infraclinical axonal neuropathy detected in 8 patients probably was another associated autoimmune paraneoplastic complication.
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pubmed:language |
fre
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:issn |
0035-3787
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
148
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
513-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1448671-Adult,
pubmed-meshheading:1448671-Aged,
pubmed-meshheading:1448671-Autoimmune Diseases,
pubmed-meshheading:1448671-Electrophysiology,
pubmed-meshheading:1448671-Female,
pubmed-meshheading:1448671-Humans,
pubmed-meshheading:1448671-Lambert-Eaton Myasthenic Syndrome,
pubmed-meshheading:1448671-Lung Neoplasms,
pubmed-meshheading:1448671-Male,
pubmed-meshheading:1448671-Middle Aged,
pubmed-meshheading:1448671-Paraneoplastic Syndromes
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pubmed:year |
1992
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pubmed:articleTitle |
[Lambert-Eaton syndrome: clinical and electrophysiological study of 18 cases associated with lung cancer].
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pubmed:affiliation |
Service d'Electromyographie, Hôpital Neurologique, Lyon.
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pubmed:publicationType |
Journal Article,
English Abstract,
Review
|