{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,2]],"date-time":"2026-07-02T13:41:34Z","timestamp":1782999694830,"version":"3.54.5"},"reference-count":9,"publisher":"Cambridge University Press (CUP)","issue":"2","license":[{"start":{"date-parts":[[2015,9,18]],"date-time":"2015-09-18T00:00:00Z","timestamp":1442534400000},"content-version":"unspecified","delay-in-days":7810,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Can. J. Neurol. Sci"],"published-print":{"date-parts":[[1994,5]]},"abstract":"<jats:title>Abstract:<\/jats:title><jats:p>Consecutive patients (n = 114), who had single fiber electromyography of the frontalis muscles for symptoms suggestive of ocular myasthenia gravis, were followed up for a mean of 14 months (3-64 mos). At follow up, based on strict criteria, 23 patients were classified as having ocular myasthenia gravis, 8 patients were diagnosed as having mitochondrial myopathy or oculopharyngeal dystrophy, 18 patients were found to have other diseases and 65 patients remained without a definite diagnosis. The single fiber electromyography data of these patients were then reviewed. The patients with ocular myasthenia gravis had, on average, more than 7\/20 single fiber pairs with jitter &gt; 45 \u03bcs and mean jitter of 56 \u03bcs. The 8 patients with mitochondrial myopathy or oculopharyngeal dystrophy had an average of 5\/20 single fiber pairs with jitter &gt; 45 \u03bcs and a mean jittter of 52 \u03bcs and could not be separated from the group with ocular myasthenia gravis on the basis of the single fiber electromyography results. The 18 patients with definite other diagnosis had an average of less than 1\/20 single fiber pair with jitter &gt; 45 \u03bcs and a mean jitter of 25 \u03bcs. This group could be clearly separated from the group with ocular yasthenia gravis. We conclude that single fiber electromyelography is useful in the separation of ocular myasthenia gravis from other causes of oculomotor weakness except mitochondrial myopathy and oculopharyngeal dystrophy.<\/jats:p>","DOI":"10.1017\/s0317167100049040","type":"journal-article","created":{"date-parts":[[2016,2,17]],"date-time":"2016-02-17T09:29:08Z","timestamp":1455701348000},"page":"125-128","source":"Crossref","is-referenced-by-count":55,"title":["Usefulness of Single Fiber EMG for Distinguishing Neuromuscular from Other Causes of Ocular Muscle Weakness"],"prefix":"10.1017","volume":"21","author":[{"given":"C.","family":"Ukachoke","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"P.","family":"Ashby","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"A.","family":"Basinsk","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.A.","family":"Sharpe","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2015,9,18]]},"reference":[{"key":"S0317167100049040_bib005","first-page":"915","article-title":"Frontalis muscle single fiber electromyography in the evaluation of suspected myasthenia gravis [abstract]","volume":"14","author":"Gross","year":"1991","journal-title":"Muscle Nerve"},{"key":"S0317167100049040_bib008","doi-asserted-by":"publisher","DOI":"10.1002\/mus.880150322"},{"key":"S0317167100049040_bib001","doi-asserted-by":"publisher","DOI":"10.1002\/mus.880120802"},{"key":"S0317167100049040_bib003","first-page":"161","article-title":"Correlation of clinical status, single-fiber EMG and serum antiacetylcholine receptor antibody in myasthenia gravis [abstract]","volume":"34","author":"Chu","year":"1984","journal-title":"Neurology"},{"key":"S0317167100049040_bib006","doi-asserted-by":"publisher","DOI":"10.1002\/mus.880100404"},{"key":"S0317167100049040_bib007","doi-asserted-by":"publisher","DOI":"10.1016\/0022-510X(82)90021-1"},{"key":"S0317167100049040_bib002","first-page":"88","volume-title":"Clinical Neurophysiology","author":"Stalberg","year":"1981"},{"key":"S0317167100049040_bib004","doi-asserted-by":"publisher","DOI":"10.1002\/mus.880090904"},{"key":"S0317167100049040_bib009","first-page":"99","article-title":"SFEMG findings in different disorders","author":"Stalberg","year":"1979","journal-title":"Single Fiber Electromyography"}],"container-title":["Canadian Journal of Neurological Sciences \/ Journal Canadien des Sciences Neurologiques"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0317167100049040","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2022,9,12]],"date-time":"2022-09-12T09:18:44Z","timestamp":1662974324000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0317167100049040\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[1994,5]]},"references-count":9,"journal-issue":{"issue":"2","published-print":{"date-parts":[[1994,5]]}},"alternative-id":["S0317167100049040"],"URL":"https:\/\/doi.org\/10.1017\/s0317167100049040","relation":{},"ISSN":["0317-1671","2057-0155"],"issn-type":[{"value":"0317-1671","type":"print"},{"value":"2057-0155","type":"electronic"}],"subject":[],"published":{"date-parts":[[1994,5]]}}}