Asymmetric sensory nerve action potential amplitudes as an early hint for diagnosing Lewis–Sumner syndrome

2016 ◽  
Vol 117 (2) ◽  
pp. 565-567
Author(s):  
Mehmet Ilker Yon ◽  
Hafize Nalan Gunes ◽  
Burcu Gokce Cokal ◽  
Selda Keskin Guler ◽  
Tahir Kurtulus Yoldas
Keyword(s):  
Action Potential ◽  
Sensory Nerve ◽  
Sensory Nerve Action Potential ◽  
Nerve Action ◽  
Sensory Nerve Action

scholarly journals Electrophysiological diagnosis using sensory nerve action potential for the intraforaminal and extraforaminal L5 nerve root entrapment

2012 ◽  
Vol 22 (4) ◽  
pp. 833-839 ◽  
Author(s):  
Muneharu Ando ◽  
Tetsuya Tamaki ◽  
Mamoru Kawakami ◽  
Akihito Minamide ◽  
Yukihiro Nakagawa ◽  
...  
Keyword(s):  
Action Potential ◽  
Nerve Root ◽  
Sensory Nerve ◽  
Sensory Nerve Action Potential ◽  
Nerve Action ◽  
Sensory Nerve Action ◽  
Nerve Root Entrapment

Close relationship between cardiovagal function and sural sensory nerve action potential in type 2 diabetes

2019 ◽  
Vol 130 (7) ◽  
pp. 1160-1165
Author(s):  
Yun-Ru Lai ◽  
Chih-Cheng Huang ◽  
Wen-Chan Chiu ◽  
Rue-Tsuan Liu ◽  
Nai-Wen Tsai ◽  
...  
Keyword(s):  
Type 2 Diabetes ◽  
Action Potential ◽  
Sensory Nerve ◽  
Sensory Nerve Action Potential ◽  
Nerve Action ◽  
Close Relationship ◽  
Sensory Nerve Action

83. Assessment of C7 nerve distribution with sensory nerve action potential after total C7 nerve transection

2009 ◽  
Vol 120 (2) ◽  
pp. e112-e113
Author(s):  
J. Xu ◽  
A. Mar ◽  
J. Lu ◽  
X. Jin ◽  
D. Zhu ◽  
...  
Keyword(s):  
Action Potential ◽  
Sensory Nerve ◽  
Sensory Nerve Action Potential ◽  
Nerve Transection ◽  
Nerve Action ◽  
Sensory Nerve Action

The correlation of neurophysiological findings with clinical and functional status in patients following traumatic nerve injury

2013 ◽  
Vol 39 (2) ◽  
pp. 199-206 ◽  
Author(s):  
F. Şahin ◽  
N. Ş. Atalay ◽  
N. Akkaya ◽  
Ö. Ercidoğan ◽  
B. Başakçı ◽  
...  
Keyword(s):  
Action Potential ◽  
Functional Status ◽  
Nerve Injury ◽  
Compound Muscle Action Potential ◽  
Sensory Nerve ◽  
Sensory Nerve Action Potential ◽  
Muscle Action ◽  
Nerve Action ◽  
Muscle Action Potential ◽  
Sensory Nerve Action

In this study, we aimed to determine whether there is a correlation between the electrodiagnostic findings and the functional status, muscle strength and sensibility in patients with traumatic nerve injury to the wrists. We assessed 50 patients at a mean of 11.6 months (SD 5.85) (range 6–25) after nerve injury. Sensibility was assessed by monofilament testing. Motor function was evaluated by assessing the manual muscle grade of the abductor pollicis brevis and abductor digiti minimi muscles. Function was evaluated by the Sollerman Hand Function Test. The amplitudes of the compound muscle action potential and the sensory nerve action potential were determined by electroneuromyography. While the compound muscle action potential and sensory nerve action potential amplitudes had significant correlation with muscle grade and Semmes Weinstein Monofilament tests, there was no correlation with the functional scores.

scholarly journals Role of Electro-Diagnostic Tests In Early Detection of Diabetic Neuropathy

1970 ◽  
Vol 24 (1) ◽  
pp. 34-44
Author(s):  
Zahed Ali ◽  
Maliha Hakim ◽  
Monirul Islam ◽  
Nirmalendu Bikash Bhowmik ◽  
Shamsun Nahar ◽  
...  
Keyword(s):  
Diabetic Neuropathy ◽  
Action Potential ◽  
Median Nerve ◽  
Conduction Velocity ◽  
Nerve Conduction ◽  
Sensory Nerve ◽  
Diabetic Patients ◽  
Sensory Nerve Action Potential ◽  
Nerve Action ◽  
Sensory Nerve Action

Since the peripheral nerve has the ability to regenerate, therapeutic intervention at earlier stages expected to have a better result in the treatment of diabetic neuropathy. So early detection of diabetic neuropathy is one of the major goals in its management. Purpose: The purpose of present study is to evaluate the efficacy of the electrodiagnostic tests to detect diabetic neuropathy at an early stage (before development of the signs of neuropathy). Method: 30 diabetic patients with or without symptoms of diabetic neuropathy were included in the test group. Diabetic patients with signs of neuropathy and with other complications, like stroke, peripheral vascular diseases were excluded. Twenty six control subjects (non-diabetic with no family history of diabetes) were included. Both the groups were matched for age. To see the functional status of peripheral nerves motor nerve conduction velocity (NCV), compound muscle action potentials (CAMP) of median nerve were studied. Sensory nerve conduction velocities (NCV), and sensory nerve action potential (SNAP) of median and sural nerves were also measured. Results: Sensory nerve conduction velocity of sural nerve was significantly slowed (43.84±8.23 vs 48.23±5.03 m/sec, p < .05) in diabetic patients. Sural sensory nerve action potential has lower in amplitude (13.31±7.03 vs 14.24±4.714 mv, p<.3) in diabetic patients. Median sensory nerve conduction velocity did show difference (50.89+8.23 vs 57.17±6.67 m/s, p < .01) and median sensory nerve action potential has significantly lower in amplitude (3.86±1.016 vs 7.39±4.79, p < .001) in diabetic patients. No significant difference was found in median nerve motor conduction velocity between the two groups of subjects. Amplitude of compound muscle action potential of median nerve also shows no significant variations.Considering mean±SD value of conduction parameter as the cut off value, sural nerve sensory conduction velocity was found slowed in 8 diabetic subjects (26%). Sural nerve sensory action potential was of lower amplitude in 12 diabetic subjects (40%). Eleven diabetic subjects (36%) had lower amplitude for median sensory nerve action potential (SNAP). For compound muscle action potential (CAMP) and sensory nerve action potential (SNAP) half the mean value of control was the cut off point. Conclusion: The result suggests that in diabetic patients of Bangladesh with or without symptoms of neuropathy, abnormalities of nerve conduction parameters can be detected early by routine electrodiagnostic monitoring. Sensory nerve conduction parameters are affected more than motor ones. Amplitude abnormalities are slightly more common than conduction velocity or latency abnormalities for sensory studies. Lower extremity nerves were affected more. Sural median nerve has the highest abnormalities in diabetic patients with early neuropathy. DOI: http://dx.doi.org/10.3329/bjn.v24i1.3038 Bangladesh Journal of Neuroscience 2008; Vol. 24 (1) :34-44

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