Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6-7
pubmed:dateCreated
1992-12-29
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.
pubmed:language
fre
pubmed:journal
pubmed:citationSubset
IM
pubmed:status
MEDLINE
pubmed:issn
0035-3787
pubmed:author
pubmed:issnType
Print
pubmed:volume
148
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
513-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1992
pubmed:articleTitle
[Lambert-Eaton syndrome: clinical and electrophysiological study of 18 cases associated with lung cancer].
pubmed:affiliation
Service d'Electromyographie, Hôpital Neurologique, Lyon.
pubmed:publicationType
Journal Article, English Abstract, Review