Diagnosis of brachial plexus traction lesions by sensory nerve action potentials and somatosensory evoked potentials

Injury ◽  
1981 ◽  
Vol 12 (5) ◽  
pp. 376-382 ◽  
Author(s):  
S.J. Jones ◽  
C.B.Wynn Parry ◽  
A. Landi
Keyword(s):  
Evoked Potentials ◽  
Brachial Plexus ◽  
Somatosensory Evoked Potentials ◽  
Action Potentials ◽  
Sensory Nerve ◽  
Nerve Action ◽  
Sensory Nerve Action

scholarly journals Sciatic neuropathy with preserved sensory nerve action potentials, a case series

2020 ◽  
Vol 1 (1) ◽  
Author(s):  
Matthew Ritch ◽  
Omer Suhaib ◽  
Yuebing Li
Keyword(s):  
Action Potentials ◽  
Sensory Nerve ◽  
Case Series ◽  
Normal Range ◽  
Single Institution ◽  
Lumbosacral Radiculopathy ◽  
Sciatic Neuropathy ◽  
Nerve Action ◽  
Sensory Nerve Action ◽  
Sensory Fibers

Background: Sciatic neuropathy is differentiated from lumbosacral radiculopathy based on the finding of abnormal sensory nerve action potentials (SNAPs). Cases of sciatic neuropathy with intact SNAPS have not been well described. Methods: A retrospective analysis of 12 patients with sciatic neuropathy in a single institution. Results: We describe 12 patients in whom a sciatic neuropathy was diagnosed based on a combination of history, physical exam, radiological and electrodiagnostic (EDX) findings. Lower extremity SNAPs were found to be within normal range in all patients, although SNAP amplitude asymmetry between both sides was observed in 3. Included patients were young (mean age of 40.3 years) and mostly female (9 patients). Conclusions: Sciatic neuropathy may occur with a relative sparing of sensory fibers. Recognition of this group of patients should help to avoid making a misdiagnosis of lumbosacral radiculopathy.

Stimulus waveform determines the characteristics of sensory nerve action potentials

2016 ◽  
Vol 127 (3) ◽  
pp. 1879-1885 ◽  
Author(s):  
Pedro Pereira ◽  
João Leote ◽  
Christopher Cabib ◽  
Jordi Casanova-Molla ◽  
Josep Valls-Sole
Keyword(s):  
Action Potentials ◽  
Sensory Nerve ◽  
Stimulus Waveform ◽  
Nerve Action ◽  
Sensory Nerve Action

scholarly journals Focal Vibration Alters Human Digital Sensory Nerve Action Potentials: A Pilot Study

2021 ◽  
Vol 2021 ◽  
pp. 1-5
Author(s):  
Dong Qing Zhu ◽  
Fang Liu ◽  
Yu Zhu ◽  
Duan Lei ◽  
Xiang Jin ◽  
...  
Keyword(s):  
Stimulus Intensity ◽  
Action Potentials ◽  
Sensory Nerve ◽  
Electrical Stimulus ◽  
Sensory Nerve Action Potential ◽  
Vibratory Stimulation ◽  
Nerve Action ◽  
Sensory Nerve Action ◽  
The Impact ◽  
Marked Drop

Introduction. We studied the impact of vibratory stimulation on the electrophysiological features of digital sensory nerve action potential (SNAP). Methods. The antidromic digit 3 SNAP was recorded in 19 healthy adults before, during, and after applying a vibration to either 3rd or 5th metacarpal phalangeal joint (MCPJ) at 60 Hz and amplitude of 2 mm. 100% supramaximal stimulus intensity was performed in 5 subjects (randomly selected from the 19 subjects) where the SNAP sizes were recorded. Results. The amplitude of digit 3 SNAP declined to 58.9 ± 8.6 % when a vibration was applied to MCPJ digit 3. These impacts did not change by increasing the electrical stimulus intensity. The SNAP regained its baseline value immediately after the cessation of vibration stimulation. The magnitude of size reduction of digit 3 SNAP was less when vibration was moved to from MCPJ of digit 3 to MCPJ of digit 5. Discussion. The marked drop of the SNAP size during vibratory stimulation reflects the decreased responsiveness of Aβ afferents to electrical stimulation, which deserve further investigation in the study of focal vibration in neurorehabilitation.

Re: Amplitude Ratio of Ulnar Sensory Nerve Action Potentials in Segmental Conduction Study

2008 ◽  
Vol 87 (12) ◽  
pp. 1053-1054 ◽  
Author(s):  
P Caliandro ◽  
C Pazzaglia ◽  
G Granata ◽  
P Tonali ◽  
L Padua
Keyword(s):  
Action Potentials ◽  
Amplitude Ratio ◽  
Sensory Nerve ◽  
Nerve Action ◽  
Sensory Nerve Action

Anodal sensory nerve action potentials: From physiological understanding to potential clinical applicability

2016 ◽  
Vol 53 (6) ◽  
pp. 897-905 ◽  
Author(s):  
Joao Leote ◽  
Pedro Pereira ◽  
Christopher Cabib ◽  
Federica Cipullo ◽  
Josep Valls-Sole
Keyword(s):  
Action Potentials ◽  
Sensory Nerve ◽  
Clinical Applicability ◽  
Nerve Action ◽  
Sensory Nerve Action
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