Peculiarities of motor evoked potential in healthy children of different age
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Abstract
Aim of the work The implementation of the database for reference values of motor evoked potentials (MEP) in healthy children of different ages. Methods 95 healthy children were enrolled. Age ranged from 1 to 204 months. Three subgroups were established: children of 1-12 months (n=31, 18 males, 13 females), 12-144 months (n=27, 14 males, 13 females) and 144-204 (n=37, 20 males, 17 females) months. All children were healthy. Diagnostic transcranial magnetic stimulation (TMS) was performed in all patients. MEP shape, threshold, latency and amplitudes were recorded for hands (m. Abductor pollicis brevis) and legs (m. Abductor Hallucis). Central motor conduction time (CMCT) was calculated. Results. Along with age there was observed the elongation of MEP latency, gain in amplitudes and shape normalization. There were significant differences in the elongation of MEP latency between children aged of 1-12 months and children from two other subgroups (12-144 and 144-204 months). Conclusions. Our normative data can be usedfor comparative studies in the broad spectrum of pediatric disorders. Age restrictions have to be taken in a consideration when performing the TMS in pediatric population.
About the authors
Voitenkov Vladislav B.
Scientific Research Institute of Children’s Infections 9, Professora Popova str., Saint-Petersburg, 197022, Russian Federation MD, PhD, Head of the department of functional diagnostics of the Scientific Research Institute of Children’s Infections vlad203@inbox.ru
Skripchenko N.V.
Scientific Research Institute of Children’s Infections 9, Popova str., Saint-Petersburg, 197022, Russian Federation
Klimkin A.V.
Scientific Research Institute of Children’s Infections 9, Professora Popova str., Saint-Petersburg, 197022, Russian Federation
Aksenova A.I.
Saint-Petersburg State Pediatric Medical University 2, Litovskaya str., St. Petersburg, 194100, Russian Federation
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