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'EMG Evaluation of the Motor Unit - Electrophysiologic Biopsy' (7)


Aug
2015

In this study, we aimed at evaluation of electrophysiological and histopathalogical characteristics of statin-induced muscle injury as well as clinical features of patients who develop this condition in terms of frequency and pattern of evolution.
Forty patients (age 39-74 years) including 25 subjects with type 2 diabetes mellitus, 9 with cardiovascular diseases and 6 with hyperlipidemia, who were receiving atrovastatin 40 mg/day for variable period, were studied. Thirty three healthy subjects (age 31-74 years) served as control group.

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Feb
2013

Electrodiagnostic evaluation of myopathies.

Phys Med Rehabil Clin N Am 2013 Feb 16;24(1):193-207. Epub 2012 Oct 16.
Sabrina Paganoni, Anthony Amato
Electrodiagnostic studies play an important role in the evaluation of patients suspected of having a myopathic disorder. They are used to exclude alternative diagnoses, confirm the presence of muscle disease, narrow down the differential, and identify an appropriate biopsy site. The most informative part of the electrodiagnostic study is needle electromyography.

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Aug
2012

To better characterize the clinical features, electrophysiologic features, and treatment outcomes of painful legs and moving toes (PLMT) syndrome.
Large case series.
Neurology outpatient clinic at a tertiary referral center, 1983-2011.

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Sep
2011

Suprascapular neuropathy (SSN) is considered a rare condition, and few studies have analyzed how commonly it is encountered in practice. Electrophysiologic studies are the gold standard for diagnosis; however, there is no consensus on diagnostic criteria. We hypothesized that SSN would be frequently diagnosed by electrophysiologic testing in a subset of patients with specific clinical and radiographic findings suggestive of the pathology.

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Aug
2009

To evaluate standardized recurrent laryngeal nerve (RLN) injuries using a rat model via minimally invasive transoral electromyography (ToL EMG) and histologic studies.
Forty-two female Sprague Dawley rats weighing 200 g to 250 g underwent crush injury to the right RLN using a calibrated pressure clip (0.61 N or 1.

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Dec
1969

In diagnostics of ALS the electrophysiologic investigation should be able to evaluate two fundamental processes: the primary process of the loss of some motoneuros--denervation, and secondary process of reinnervation. The most important diagnostic methods include the quantitative electromyography (EMG) evaluating several parameters of the motor unit potential (MUP) and of the maximal effort pattern. The earliest features are the signs of spontaneous activity (denervation) and the elevation of MUP amplitude and area (reinnervation).

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Oct
1996

Five patients with spinal cord infarction underwent electrophysiologic evaluation. Two subjects with complete paralysis had absent compound muscle action potentials (M-responses), suggesting complete loss of lower motoneurons (LMN). Three subjects with incomplete cord infarction had preserved M-responses, reduced voluntary recruitment and abnormally slow motor-unit firing rates during maximal effort, suggesting upper motoneuron (UMN) weakness.

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