Long latency reflexes and somatosensory potentials in multiple sclerosis patients

1994 ◽  
Vol 24 (5) ◽  
pp. 440-441 ◽  
Author(s):  
A. Ts. Iovichich
Keyword(s):  
Multiple Sclerosis ◽  
Long Latency ◽  
Multiple Sclerosis Patients ◽  
Long Latency Reflexes

scholarly journals Cortical Relay Time for Long Latency Reflexes in Patients with Definite Multiple Sclerosis

2004 ◽  
Vol 31 (2) ◽  
pp. 229-234 ◽  
Author(s):  
Cengiz Tataroglu ◽  
Ahmet Genc ◽  
Egemen Idiman ◽  
Raif Cakmur ◽  
Fethi Idiman
Keyword(s):  
Multiple Sclerosis ◽  
Evoked Potentials ◽  
Somatosensory Evoked Potentials ◽  
Motor Evoked Potentials ◽  
Clinical Form ◽  
Control Subjects ◽  
Long Latency ◽  
Cortical Involvement ◽  
And Control ◽  
Long Latency Reflexes

AbstractBackground:Long latency reflexes (LLR) include afferent sensory, efferent motor and central transcortical pathways. It is supposed that the cortical relay time (CRT) reflects the conduction of central transcortical loop of LLR. Recently, evidence related to the cortical involvement in multiple sclerosis (MS) has been reported in some studies. Our aim was to investigate the CRT alterations in patients with MS.Methods:Upper extremity motor evoked potentials (MEP), somatosensory evoked potentials (SEP) and LLR were tested in 28 patients with MS and control subjects (n=22). The patients with MS were classified according to the clinical form (relapsing-remitting [R-R] and progressive groups). The MS patients with secondary progressive and primary progressive forms were considered as the “progressive” group. CRT for LLR was calculated by subtracting the peak latency of somatosensory evoked potentials (SEP) and that of motor evoked potentials (MEP) by transcranial magnetic stimulation from the onset latency of the second component of LLR (LLR2) (CRT = LLR2 – [MEP latency + N20 latency])Results:Cortical relay time was calculated as 7.4 ± 0.9 ms in control subjects. Cortical relay time was prolonged in patients with MS (11.2 ± 2.9 ms) (p<0.0001). The latencies of LLR, MEP and SEP were also prolonged in patients with MS. Cortical relay time was not correlated with disease severity and clinical form in contrast to other tests.Conclusions:Our findings suggested that CRT can be a valuable electrophysiological tool in patients with MS. Involvement of extracortical neural circuits between sensory and motor cortices or cortical involvement due to MS may cause these findings.

The diagnostic significance of long-latency reflexes in multiple sclerosis

1988 ◽  
Vol 70 (1) ◽  
pp. 56-61 ◽  
Author(s):  
Günther Deuschl ◽  
Kai Strahl ◽  
Eduard Schenck ◽  
Carl H. Lücking
Keyword(s):  
Multiple Sclerosis ◽  
Diagnostic Significance ◽  
Long Latency ◽  
Long Latency Reflexes

scholarly journals Long-latency Reflexes and Area Measurements of Corpus Callosum in Patients with Multiple Sclerosis

2016 ◽  
Vol 4 (1) ◽  
pp. 5-11
Author(s):  
Hulya ERTASOGLU TOYDEMIR ◽  
Munevver GOKYIGIT ◽  
Feray KIYMAZ SELEKER ◽  
Lale GUNDOGDU CELEBI ◽  
Ender UYSAL ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Corpus Callosum ◽  
Long Latency ◽  
Long Latency Reflexes

P321: The role of long latency reflexes and area measurements of corpus callosum in the assessment of multiple sclerosis

2014 ◽  
Vol 125 ◽  
pp. S134
Author(s):  
H. Ertasoglu Toydemir ◽  
M. Gokyigit Celik ◽  
E. Uysal ◽  
L. Gundogdu Celebi
Keyword(s):  
Multiple Sclerosis ◽  
Corpus Callosum ◽  
Long Latency ◽  
Long Latency Reflexes
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