Evaluation of Thoracic Myelopathy by Transcranial Magnetic Stimulation

Misawa, Takuo; Ebara, Sohei; Kamimura, Mikio; Tateiwa, Yutaka; Kinoshita, Tetsuya; Takaoka, Kunio

doi:10.1097/00002517-200110000-00011

Cited by 13 publications

(7 citation statements)

References 27 publications

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“…In addition, it was shown that this transcranially induced motor-evoked potential (MEP) from the diaphragm could be facilitated during volitional inspiration as are the MEPs from limb muscles by volitional contraction [44] and that transcranial magnetic motor cortex stimulation (TMS)-induced MEPs were reduced during sleep when cortical excitability was reduced [45]. TMS was also used to demonstrate the direct or near-direct corticospinal connections between the motor cortex and spinal motor neurons for intercostal [46, 47], pectoralis [48], rectus abdominus [49], oblique [50], and paraspinal [51] muscles. Finally, bilateral activation of abdominal muscles by TMS suggested that there may be a greater degree of uncrossed corticospinal innervation for abdominal muscles than is found for limb muscles [52].…”

Section: Motor Control Of Respirationmentioning

confidence: 99%

Respiratory Motor Control Disrupted by Spinal Cord Injury: Mechanisms, Evaluation, and Restoration

Paleville

McKay

Folz

et al. 2011

Transl. Stroke Res.

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Pulmonary complications associated with persistent respiratory muscle weakness, paralysis, and spasticity are among the most important problems faced by patients with spinal cord injury when lack of muscle strength and disorganization of reciprocal respiratory muscle control lead to breathing insufficiency. This review describes the mechanisms of the respiratory motor control and its change in individuals with spinal cord injury, methods by which respiratory function is measured, and rehabilitative treatment used to restore respiratory function in those who have experienced such injury.

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Section: Motor Control Of Respirationmentioning

confidence: 99%

Respiratory Motor Control Disrupted by Spinal Cord Injury: Mechanisms, Evaluation, and Restoration

Paleville

McKay

Folz

et al. 2011

Transl. Stroke Res.

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“…For all patients, motor evoked potentials (MEPs) elicited by transcranial magnetic stimulation [31][32][33][34][35] were recorded before surgery. Transcranial magnetic stimulation was delivered by a Magstim 200 magnetic stimulator (Magstim Co., Wales, UK) through a round coil with an external diameter of 90 mm and a maximum field strength of 2.0 T. Circular disk electrodes were placed on the right and left abductor pollicis brevis (APB) and abductor digiti minimi (ADM).…”

Section: Methodsmentioning

confidence: 99%

Neurogenic Bladder in Patients with Cervical Compressive Myelopathy

Misawa

Kamimura²,

Kinoshita³

et al. 2005

Journal of Spinal Disorders &Amp; Techniques

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We examined the urinary disturbances in 56 consecutive patients with cervical compressive myelopathy using the latest International Continence Society classification. Of the 56 patients with cervical compressive myelopathy, 29 (52%) had some urinary subjective complaints, whereas the remaining 27 (48%) had none. Urologic examination indicated that 8 of these 29 (28%) patients with urinary complaints had urologic disorders other than neurogenic bladder. Of the remaining 21 patients, only 6 (25%) were judged to have neurogenic bladder on urodynamic study. Urodynamic study may be of limited value in diagnosing urinary disturbance in cervical myelopathy. Further, four cases (83%) showed underactive bladder activity in voiding phase, and only one case (17%) showed overactive bladder activity in filling phase. These results were contrary to those of previous studies indicating that cervical compressive myelopathy is associated with overactive bladder activity in filling phase. There were no significant differences in motor or sensory Japanese Orthopedic Association scores between the patients with and without urinary complaints. However, the patients with urinary complaints had significantly longer durations of myelopathy and delayed motor evoked potential latencies than those without urinary complaints. After surgery, 19 of the 21 (90%) patients with urinary complaints showed recovery from urinary disturbance. Operations in patients with cervical myelopathy were also effective against urinary disturbance. Urinary complaints may be an indication for surgical treatment despite the results of urodynamic study.

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“…23,24 The study of different muscles innervated by the thoracic cord, such as the rectus abdominis or external oblique muscles, may be useful because the roots of these muscles can be stimulated using magnetic stimulation and CMCT to the corresponding thoracic segments can be measured.…”

Section: Compressive Myelopathymentioning

confidence: 99%