Neurophysiological evidence of ipsilateral activation during motor recovery in patients with stroke: a study with motor evoked potentials

1995 ◽  
Vol 95 (3) ◽  
pp. P51-P52
Author(s):  
C. Iani ◽  
G. Bernardi ◽  
M.T. Desiato ◽  
M.D. Caramia
Keyword(s):  
Evoked Potentials ◽  
Motor Evoked Potentials ◽  
Motor Recovery

Predicting Hand Motor Recovery in Severe Stroke: The Role of Motor Evoked Potentials in Relation to Early Clinical Assessment

2008 ◽  
Vol 23 (1) ◽  
pp. 45-51 ◽  
Author(s):  
Annette A. van Kuijk ◽  
Jaco W. Pasman ◽  
Henk T. Hendricks ◽  
Machiel J. Zwarts ◽  
Alexander C. H. Geurts
Keyword(s):  
Lower Extremity ◽  
Evoked Potentials ◽  
Upper Extremity ◽  
Clinical Assessment ◽  
Predictive Value ◽  
Motor Evoked Potentials ◽  
Motor Recovery ◽  
Stroke Patients ◽  
Abductor Digiti Minimi

Objective. The primary aim of this study was to compare the predictive value of motor evoked potentials (MEPs) and early clinical assessment with regard to long-term hand motor recovery in patients with profound hemiplegia after stroke. Methods. The sample was an inception cohort of 39 stroke patients with an acute, ischemic, supratentorial stroke and an initial upper-extremity paralysis admitted to an academic hospital. Hand motor function recovery was defined at 26 weeks poststroke as a Fugl–Meyer Motor Assessment (FMA) hand score >3 points. The following prognostic factors were compared at week 1 and week 3 poststroke: motor functions as assessed by the FMA upper-extremity and lower-extremity subscores, and the presence of an MEP in the abductor digiti minimi and biceps brachii muscle. Results. Both the presence of an abductor digiti minimi–MEP and any motor recovery in the FMA upper-extremity subscore showed a positive predictive value of 1.00 at weeks 1 and 3. The FMA lower-extremity subscore showed the best negative predictive value (0.90; 95% CI 0.78-1.00 at week 1 and 0.95; 95% CI 0.87-1.00 at week 3). Conclusions. In stroke patients with an initial paralysis of the upper extremity the presence or absence of an MEP has similar predictive value compared with early clinical assessment with regard to long-term hand motor recovery.

scholarly journals Preserved motor-evoked potentials but without good motor recovery in a patient with decerebrate rigidity

2011 ◽  
Vol 74 (1) ◽  
pp. 37-39
Author(s):  
Chuen-Der Kao ◽  
Kon-Ping Lin ◽  
Jen-Tse Chen ◽  
Jiun-Bin Chang ◽  
Wan-Yuo Guo ◽  
...  
Keyword(s):  
Evoked Potentials ◽  
Motor Evoked Potentials ◽  
Motor Recovery ◽  
Decerebrate Rigidity

The Effect of Low versus High Frequency Electrical Acupoint Stimulation on Motor Recovery After Ischemic Stroke by Motor Evoked Potentials Study

2008 ◽  
Vol 36 (01) ◽  
pp. 45-54 ◽  
Author(s):  
Young Suk Kim ◽  
Jin Woo Hong ◽  
Byung Jo Na ◽  
Seong Uk Park ◽  
Woo Sang Jung ◽  
...  
Keyword(s):  
Ischemic Stroke ◽  
Evoked Potentials ◽  
High Frequency ◽  
Motor Evoked Potentials ◽  
Low Frequency ◽  
Motor Recovery ◽  
Motor Dysfunction ◽  
Stroke Patients ◽  
Affected Side ◽  
Acupoint Stimulation

Electrical acupoint stimulation (EAS) has been used to treat motor dysfunction of stroke patients with reportedly effective results. When we operate EAS treatment, we can modulate the intensity and frequency of stimulation. The purpose of this study is to evaluate the effect of different frequencies in treating motor dysfunction of ischemic stroke patients with EAS. The subjects of this study were 62 ischemic stroke patients with motor dysfunction in Kyunghee oriental medical center. They have been hospitalized after 1 week to 1 month from onset. They were treated with 2 Hz or 120 Hz EAS for 2 weeks, and had motor evoked potentials (MEPs) tests before and after 2 weeks of EAS treatment. We measured latency, central motor conduction time (CMCT) and amplitude of MEPs. After 2 weeks of treatment, we compared MEPs data of the affected side between the 2 Hz group and the 120 Hz group. The 2 Hz group showed more significant improvement than the 120 Hz group in latency, CMCT and amplitude ( p = 0.008, 0.002, 0.002). In the case of the affected side MEPs data divided by normal side MEPs data, the 2 Hz group also showed higher improvement rate than the 120 Hz group in latency, CMCT and amplitude with significant differences ( p = 0.003, 0.000, 0.008). These results suggest that low frequency EAS activates the central motor conduction system better than high frequency EAS, and EAS with low frequency could be more helpful for motor recovery after ischemic stroke than that with high frequency.

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