{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,11]],"date-time":"2025-07-11T10:28:34Z","timestamp":1752229714958,"version":"3.37.3"},"reference-count":4,"publisher":"Wiley","license":[{"start":{"date-parts":[[2013,1,1]],"date-time":"2013-01-01T00:00:00Z","timestamp":1356998400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Case Reports in Neurological Medicine"],"published-print":{"date-parts":[[2013]]},"abstract":"<jats:p>Lambert-Eaton myasthenic syndrome (LEMS) is a rare presynaptic disorder of the neuromuscular junction in association with cancer and subsequently in cases in which no neoplasm has been detected (O\u2019Neill et al., 1988). The diagnosis of LEMS is based on the combination of fluctuating muscle weakness, diminished or absent reflexes, and a more than 60% increment of compound muscle action potential (CMAP) amplitude after brief exercise or 50\u2009Hz stimulation for 1\u2009s in a repetitive nerve stimulation (RNS) test (Oh et al., 2005). On the other hand, needle electromyography (EMG) findings related to LEMS have not been well described. Here, we report a case of LEMS, which showed apparent myopathic changes in needle EMG findings. Furthermore, we retrospectively examined the needle EMG findings in 8 patients with LEMS. In six of the 8 patients, the EMG findings showed myopathy-like findings. Although the findings of needle EMG indicated myopathic changes at a glance, the motor unit potential (MUP) returned to normal after a sustained strong muscle contraction. We propose the name \u201cpseudomyopathic changes\u201d for this phenomenon.<\/jats:p>","DOI":"10.1155\/2013\/369278","type":"journal-article","created":{"date-parts":[[2013,7,18]],"date-time":"2013-07-18T18:50:08Z","timestamp":1374173408000},"page":"1-2","source":"Crossref","is-referenced-by-count":3,"title":["Pseudomyopathic Changes in Needle Electromyography in Lambert-Eaton Myasthenic Syndrome"],"prefix":"10.1155","volume":"2013","author":[{"given":"Teppei","family":"Komatsu","sequence":"first","affiliation":[{"name":"Department of Neurology, Tokyo Metropolitan Neurological Hospital, 2-6-1 Musashidai, Fuchu, Tokyo 183-0042, Japan"},{"name":"Department of Neurology, The Jikei University School of Medicine, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1869-0364","authenticated-orcid":true,"given":"Kota","family":"Bokuda","sequence":"additional","affiliation":[{"name":"Department of Neurology, Tokyo Metropolitan Neurological Hospital, 2-6-1 Musashidai, Fuchu, Tokyo 183-0042, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Toshio","family":"Shimizu","sequence":"additional","affiliation":[{"name":"Department of Neurology, Tokyo Metropolitan Neurological Hospital, 2-6-1 Musashidai, Fuchu, Tokyo 183-0042, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tetsuo","family":"Komori","sequence":"additional","affiliation":[{"name":"Department of Neurology, National Hakone Hospital, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Reiji","family":"Koide","sequence":"additional","affiliation":[{"name":"Department of Neurology, Tokyo Metropolitan Neurological Hospital, 2-6-1 Musashidai, Fuchu, Tokyo 183-0042, Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"key":"2","doi-asserted-by":"publisher","DOI":"10.1002\/mus.20389"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.4061\/2011\/973808"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.1016\/S1474-4422(11)70245-9"},{"issue":"3","key":"1","doi-asserted-by":"crossref","first-page":"577","DOI":"10.1093\/brain\/111.3.577","volume":"111","year":"1988","journal-title":"Brain"}],"container-title":["Case Reports in Neurological Medicine"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/crinm\/2013\/369278.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/crinm\/2013\/369278.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/crinm\/2013\/369278.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2017,6,21]],"date-time":"2017-06-21T12:28:08Z","timestamp":1498048088000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.hindawi.com\/journals\/crinm\/2013\/369278\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2013]]},"references-count":4,"alternative-id":["369278","369278"],"URL":"https:\/\/doi.org\/10.1155\/2013\/369278","relation":{},"ISSN":["2090-6668","2090-6676"],"issn-type":[{"type":"print","value":"2090-6668"},{"type":"electronic","value":"2090-6676"}],"subject":[],"published":{"date-parts":[[2013]]}}}