“…Other authors reported that electrical stimulation of this latter region in chronic pain patients induced motor responses accompanied by pain relief [11] . Beneficial effects achieved by IC stimulation on either pain symptoms, or motor-related disorders have been described in several studies [2][3][4][6][7][8][9][10][11][12] . According to the literature, IC DBS relieved either completely or partially the symptoms in almost 60% of the treated patients ( table 1 ).…”
Section: Discussionmentioning
confidence: 95%
“…1 This case is part of the series by Adams et al [8]. 2 Two electrodes were implanted in both patients, 1 in PVG and 1 in IC. 3 Seven out of 11 patients were already described by Namba et al [10].…”
This report describes the long-term follow-up of chronic stimulation of the posterior limb of the internal capsule (IC) adjacent to the sensory thalamus in an elderly patient who suffered pain and spasticity in the left leg due to stroke. Both pain and motor symptoms ameliorated during 5 years of deep brain stimulation. Our case report suggests the possibility to stimulate a more precise representation of the inferior limbs within the IC and thalamus. We propose that chronic stimulation of the IC might be an effective surgical option to motor cortex stimulation when the pain and spasticity are referred to the lower limbs.
“…Other authors reported that electrical stimulation of this latter region in chronic pain patients induced motor responses accompanied by pain relief [11] . Beneficial effects achieved by IC stimulation on either pain symptoms, or motor-related disorders have been described in several studies [2][3][4][6][7][8][9][10][11][12] . According to the literature, IC DBS relieved either completely or partially the symptoms in almost 60% of the treated patients ( table 1 ).…”
Section: Discussionmentioning
confidence: 95%
“…1 This case is part of the series by Adams et al [8]. 2 Two electrodes were implanted in both patients, 1 in PVG and 1 in IC. 3 Seven out of 11 patients were already described by Namba et al [10].…”
This report describes the long-term follow-up of chronic stimulation of the posterior limb of the internal capsule (IC) adjacent to the sensory thalamus in an elderly patient who suffered pain and spasticity in the left leg due to stroke. Both pain and motor symptoms ameliorated during 5 years of deep brain stimulation. Our case report suggests the possibility to stimulate a more precise representation of the inferior limbs within the IC and thalamus. We propose that chronic stimulation of the IC might be an effective surgical option to motor cortex stimulation when the pain and spasticity are referred to the lower limbs.
Early components of lemniscal potentials after contralateral median nerve or mechanical stimulus are due to lemniscal pathways, whereas later components, after 70 msec appearing bilaterally and at higher stimulus intensities probably express extralemniscal activity. Evoked potentials in the central gray matter show much smaller amplitudes compared with somatosensory cortical evoked potentials (SSEP). The strongest component is a negative wave after 70–100 msec. Longer conditioning stimulation of the lemniscal system inhibits late components in the median nerve evoked cortical potentials. On the contrary, stimulation of the nonspecific periaqueductal gray matter produces inhibition of early components of cortical SSEP together with facilitation of late components.
“…The programme was commenced after reports of this method appeared in the literature by Adams et al [1,2], Hosobuchi et al [8,[10][11][12], Richardson and Akil [18,19], and many others [3,7,[14][15][16][17],…”
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