Reference values in concentric needle electrode studies.
نویسندگان
چکیده
A recommendation of considerable concern is that different cutoff limits be used ‘‘depending on the clinical purpose’’. The electromyographer must report the results objectively and distinguish clearly between the results of electrophysiologic testing and conclusions based on other factors. There should only be one cutoff value, but the ultimate interpretation should take into account clinical information. A strength of this study is the diversity of equipment and expeClinical Neurophysiology 124 (2013) 1255–1260
منابع مشابه
Reference values for jitter recorded by concentric needle electrodes in healthy controls: A multicenter study.
INTRODUCTION The aim of this study was to create reference values for jitter measured with concentric needle electrodes. METHODS Operators worldwide contributed recordings from orbicularis oculi (OO), frontalis (FR), and extensor digitorum (ED) muscles in healthy controls. Criteria for acceptable signal quality were agreed upon in advance. Fifteen or 20 recordings of acceptable quality from e...
متن کاملReference jitter values for concentric needle electrodes in voluntarily activated extensor digitorum communis and orbicularis oculi muscles.
The aim of this study was to estimate normal jitter in voluntarily activated extensor digitorum communis (EDC) and orbicularis oculi (OOc) muscles using a disposable concentric needle electrode (CNE). The EDC of 67 normal subjects (22 males and 45 females, mean age 35.5 +/- 10.2 years) and the OOc of 50 normal subjects (13 males and 37 females, mean age 37.9 +/- 9.6 years) were studied. Jitter ...
متن کامل2.5 Mune (motor Unit Number Estimate)
[1] Benatar M, Hammad M, Doss-Rinev H. Concentric-needle fiber electromyografy for the diagnosis of myasthenia gravis. Muscle Nerve 2006; 34: 163–168 [2] Bischoff C. Bedeutung der Einzelfaser-Elektromyografie für die Diagnostik neuromuskulärer Erkrankungen. Klin Neurophysiol 2000; 31: 136–143 [3] Bischoff C. Einzelfaser-EMG mit konzentrischen Nadelelektrode: eine Alternative in der Diagnositik ...
متن کاملStimulated jitter with concentric needle in 42 myasthenia gravis patients.
OBJECTIVE To estimate jitter parameters in myasthenia gravis in stimulated frontalis and extensor digitorum muscles using the concentric needle electrode. METHODS Forty-two confirmed myasthenia gravis patients, being 22 males (aged 45.6±17.2 years-old) were studied. Jitter was expressed as the mean consecutive difference (MCD). RESULTS MCD in extensor digitorum was 61.6 µs (abnormal in 85.7...
متن کاملRelation between electromyography and anal manometry of the external anal sphincter.
Thirteen patients with faecal incontinence and 26 control subjects were studied to investigate whether a quantitative electromyographic (EMG) signal could be correlated to anal manometry. Three different electrodes were used--a concentric needle electrode, a disposable sponge electrode, and a hard anal plug electrode. The maximum amplitude of the EMG recording was used as a quantitative paramet...
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عنوان ژورنال:
- Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
دوره 124 6 شماره
صفحات -
تاریخ انتشار 2013