Dataset Information

The usefulness of proximal radial motor conduction in acute compressive radial neuropathy.

ABSTRACT:

Background and purpose

The objective of this study was to determine diagnostic and prognostic values of proximal radial motor conduction in acute compressive radial neuropathy.

Methods

Thirty-nine consecutive cases of acute compressive radial neuropathy with radial conduction studies-including stimulation at Erb's point-performed within 14 days from clinical onset were reviewed. The radial conduction data of 39 control subjects were used as reference data.

Results

Thirty-one men and eight women (age, 45.2±12.7 years, mean±SD) were enrolled. All 33 patients in whom clinical follow-up data were available experienced complete recovery, with a recovery time of 46.8±34.3 days. Partial conduction block was found frequently (17 patients) on radial conduction studies. The decrease in the compound muscle action potential area between the arm and Erb's point was an independent predictor for recovery time.

Conclusions

Proximal radial motor conduction appears to be a useful method for the early detection and prediction of prognosis of acute compressive radial neuropathy.

SUBMITTER: Kim KH

PROVIDER: S-EPMC4387484 | biostudies-literature | 2015 Apr

REPOSITORIES: biostudies-literature

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Publications

The usefulness of proximal radial motor conduction in acute compressive radial neuropathy.

Kim Kun Hyun KH Park Kee Duk KD Chung Pil Wook PW Moon Heui Soo HS Kim Yong Bum YB Yoon Won Tae WT Park Hyung Jun HJ Suh Bum Chun BC

Journal of clinical neurology (Seoul, Korea) 20150401 2

<h4>Background and purpose</h4>The objective of this study was to determine diagnostic and prognostic values of proximal radial motor conduction in acute compressive radial neuropathy.<h4>Methods</h4>Thirty-nine consecutive cases of acute compressive radial neuropathy with radial conduction studies-including stimulation at Erb's point-performed within 14 days from clinical onset were reviewed. The radial conduction data of 39 control subjects were used as reference data.<h4>Results</h4>Thirty-on ...[more]

PMID: 25851897

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Project description:PurposeThe treatment strategy is different for acute traumatic peripheral nerve injury and acute compressive neuropathy. This study aimed to compare magnetic resonance imaging (MRI) features of acute traumatic peripheral nerve injury and acute compressive neuropathy in a rat model.Materials and methodsTwenty female Sprague-Dawley rats were divided into two groups. In the crush injury group (n = 10), the unilateral sciatic nerve was crushed using forceps to represent acute traumatic peripheral nerve injury. In the compression injury group (n = 10), the unilateral sciatic nerve was ligated using silk to represent acute compressive neuropathy. The MRI of eight rats from each group were acquired on postoperative days 3 and 10. Fat-suppressed T2-weighted images were acquired. Changes in the injured nerve were divided into three grades. A Fisher's exact test was used to compare the changes in the nerves of the two groups. Histological staining and a western blot analysis were performed on one rat in each group on day 3. Neurofilament, myelin basic protein (MBP), and p75NTR staining were performed. Expression of neurofilament, MBP, p75NTR, and c-jun was evaluated by western blot analysis.ResultsMR neurography revealed substantial nerve changes in the compression injury group compared with the crush injury group at two-time points (p = 0.001 on day 3, p = 0.026 on day 10). The histopathological analysis indicated the destruction of the axon and myelin, mainly at the injury site and the distal portion of the injury in the crush injury group. It was prominent in the proximal portion, the injury site, and the distal portion of the injury in the compression injury group. The degree of axonal and myelin destruction was more pronounced in the compression injury group than in the crush injury group.ConclusionMR neurography showed prominent and long-segmental changes associated with the injured nerve in acute compressive neuropathy compared with acute traumatic peripheral nerve injury.

Dataset Information

The usefulness of proximal radial motor conduction in acute compressive radial neuropathy.

Background and purpose

Methods

Results

Conclusions

Publications

The usefulness of proximal radial motor conduction in acute compressive radial neuropathy.

Similar Datasets

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