Stella Karatzetzou1, Dimitrios Tsiptsios2,3, Aikaterini Terzoudi1,4, Nikolaos Aggeloussis5, Konstantinos Vadikolias1,4. 1. Neurology Department, Democritus University of Thrace, Alexandroupolis, Greece. 2. Neurology Department, Democritus University of Thrace, Alexandroupolis, Greece. tsiptsios.dimitrios@yahoo.gr. 3. Laboratory of Clinical Neurophysiology, Democritus University of Thrace, Alexandroupolis, Greece. tsiptsios.dimitrios@yahoo.gr. 4. Laboratory of Clinical Neurophysiology, Democritus University of Thrace, Alexandroupolis, Greece. 5. Department of Physical Education and Sport Science, Democritus University of Thrace, Komotini, Greece.
Abstract
INTRODUCTION: Stroke represents a major cause of functional disability with increasing prevalence. Thus, it is imperative that stroke prognosis be both timely and valid. Up to today, several biomarkers have been investigated in an attempt to forecast stroke survivors' potential for motor recovery, transcranial magnetic stimulation (TMS) being among them. METHODS: A literature research of two databases (MEDLINE and Scopus) was conducted in order to trace all relevant studies published between 1990 and 2021 that focused on the potential utility of TMS implementation on stroke prognosis. Only full-text articles published in the English language were included. RESULTS: Thirty-nine articles have been traced and included in this review. DISCUSSION: Motor evoked potentials (MEPs) recording is indicative of a favorable prognosis concerning the motor recovery of upper and lower extremities' weakness, swallowing and speech difficulties, and the patient's general functional outcome. On the contrary, MEP absence is usually associated with poor prognosis. Relative correlations have also been made among other TMS variants (motor threshold, MEP amplitude, central motor conduction time) and the expected recovery rate. Overall, TMS represents a non-invasive, fast, safe, and reproducible prognostic tool poststroke that could resolve prognostic uncertainties in cases of stroke.
INTRODUCTION: Stroke represents a major cause of functional disability with increasing prevalence. Thus, it is imperative that stroke prognosis be both timely and valid. Up to today, several biomarkers have been investigated in an attempt to forecast stroke survivors' potential for motor recovery, transcranial magnetic stimulation (TMS) being among them. METHODS: A literature research of two databases (MEDLINE and Scopus) was conducted in order to trace all relevant studies published between 1990 and 2021 that focused on the potential utility of TMS implementation on stroke prognosis. Only full-text articles published in the English language were included. RESULTS: Thirty-nine articles have been traced and included in this review. DISCUSSION: Motor evoked potentials (MEPs) recording is indicative of a favorable prognosis concerning the motor recovery of upper and lower extremities' weakness, swallowing and speech difficulties, and the patient's general functional outcome. On the contrary, MEP absence is usually associated with poor prognosis. Relative correlations have also been made among other TMS variants (motor threshold, MEP amplitude, central motor conduction time) and the expected recovery rate. Overall, TMS represents a non-invasive, fast, safe, and reproducible prognostic tool poststroke that could resolve prognostic uncertainties in cases of stroke.
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