title: Changes in cortical relative power in patients submitted to a tendon transfer: a pre and post surgery study.
abstract: The aim of this study is analyze possible modifications in the cerebral cortex, through quantitative electroencephalography (qEEG) in patients submitted to a tendon transfer procedure (posterior tibialis) by the Srinivasan's technique. Four subjects (2 men and 2 women), 49.25 age average (SD +/ 21.4) were studied. All subjects have been through surgical procedure due to leprosy and had, at least, two years of drop foot condition. The qEEG measured the electrocortical activity (relative power) between 8 and 25 Hz frequencies pre and post surgery. A paired t test analyzed all data (p< or =0,05). The results show significant alterations in the alpha relative power, electrodes F7 (p=0.01) and F8 (p=0.021). Altogether, based on findings of the current literature, we can conclude that the tendon transfer procedure suggests electrocortical alterations sensitive to specific qEEG bands.
authors: Laboratory of Brain Mapping and Sensory-Motor Integration, Institute of Psychiatry, Federal University of Rio de Janeiro, Rua Filgueiras Lima 68, 20950-050 Rio de Janeiro, RJ, Brazil. jgsilva@hucff.ufrj.br
authors: Julio Guilherme
authors: JG
authors: Silva
authors: Irocy Guedes
authors: IG
authors: Knackfuss
authors: Cláudio Elidio
authors: CE
authors: Portella
authors: Sergio
authors: S
authors: Machado
authors: Bruna
authors: B
authors: Velasques
authors: Victor Hugo do Vale
authors: VH
authors: Bastos
authors: Ricardo de Andrade
authors: Rde A
authors: Queiroz
authors: Marco Antonio Orsini
authors: MA
authors: Neves
authors: Mariana
authors: M
authors: Pacheco
authors: Camila Ferreira
authors: CF
authors: Vorkapic
authors: Mauricio
authors: M
authors: Cagy
authors: Roberto
authors: R
authors: Piedade
authors: Pedro
authors: P
authors: Ribeiro
mesh_terms: D000328:Adult; D000368:Aged; D000513:Alpha Rhythm; D001611:Beta Rhythm; D001931:Brain Mapping; D002540:Cerebral Cortex / Q000502:physiology*; D004594:Electrophysiology; D005260:Female; D020233:Gait Disorders, Neurologic / Q000209:etiology / Q000503:physiopathology* / Q000601:surgery; D006801:Humans; D007918:Leprosy / Q000150:complications / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D011184:Postoperative Period; D011300:Preoperative Care; D013709:Tendon Transfer; D016896:Treatment Outcome