Silva Julio Guilherme, Knackfuss Irocy Guedes, Portella Cláudio Elidio, Machado Sergio, Velasques Bruna, Bastos Victor Hugo do Vale, Queiroz Ricardo de Andrade, Neves Marco Antonio Orsini, Pacheco Mariana, Vorkapic Camila Ferreira, Cagy Mauricio, Piedade Roberto, Ribeiro Pedro
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.
Arq Neuropsiquiatr. 2007 Sep;65(3A):628-32. doi: 10.1590/s0004-282x2007000400016.
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.
本研究的目的是通过定量脑电图（qEEG）分析接受Srinivasan技术进行肌腱转移手术（胫后肌腱）患者大脑皮层可能的变化。研究了4名受试者（2名男性和2名女性），平均年龄49.25岁（标准差±21.4）。所有受试者均因麻风病接受了外科手术，且至少有两年的足下垂情况。qEEG测量了手术前后8至25Hz频率之间的皮质电活动（相对功率）。采用配对t检验分析所有数据（p≤0.05）。结果显示，α相对功率在电极F7（p=0.01）和F8（p=0.021）处有显著变化。总之，基于当前文献的研究结果，我们可以得出结论，肌腱转移手术表明对特定qEEG频段敏感的皮质电活动发生了改变。
