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37 results of 12 texts with exact phrase : 'evoked potentials'.

1. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 2, 2006, No. 2 , , ,

He also introduced some new EMG methods as well as the technique of somatosensory and motor evoked potentials in Bulgaria.
The main neurological activities of Prof. Baykushev are in the field of epileptology, vascular diseases, recovery after stroke, and Parkinson’s disease. He was a consulting professor in many Neurological Wards of the country and also a national consultant of neurology for Southern Bulgaria. Under his leadership ten EMG laboratories have been created in different hospitals of the country. He also introduced some new EMG methods as well as the technique of somatosensory and motor evoked potentials in Bulgaria.
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Baykushev invented for the first time in the world the technique of identification of the false positive decrement of the Mresponse, conduction velocity of the hypoglossal nerve, and somatosensory evoked potentials with reflex stimulation.
In collaboration Prof. Baykushev invented for the first time in the world the technique of identification of the false positive decrement of the Mresponse, conduction velocity of the hypoglossal nerve, and somatosensory evoked potentials with reflex stimulation.
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2. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 3, 2007, No. 1 , , ,

Motor cortex transcranial magnetic stimulation topography assessed by distribution and size of evoked potentials.
Struppler A, Baykushev St. Motor cortex transcranial magnetic stimulation topography assessed by distribution and size of evoked potentials.
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3. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 3, 2007, No. 2 , , ,

Dominkus M, Grisgold W, Jelinek V: Transcranial electric motor evoked potentials as a prognostic indicator for motor recovery in stroke patients.
Dominkus M, Grisgold W, Jelinek V: Transcranial electric motor evoked potentials as a prognostic indicator for motor recovery in stroke patients.
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Magnetic stimulation motor-evoked potentials in epilepsy:effects of the disease and anticonvulsant medications
Hufnagel A, Elger CE, Marx W, Ising A. Magnetic stimulation motor-evoked potentials in epilepsy:effects of the disease and anticonvulsant medications
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Motor cortex transcranial magnetic stimulation topography assessed by distribution and size of evoked potentials.
Sruppler A, Baykouchev S. Motor cortex transcranial magnetic stimulation topography assessed by distribution and size of evoked potentials.
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4. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 4, 2008, No. 1 , , ,

Only 40% of national practice guidelines require confirmatory testing.Accepted tests are conventional or multislice computerized tomography (MSCT) angiography, electroencephalography, evoked potentials, transcranial Doppler sonography (TCD), isotope angiography, Technetium-99m hexamethylpropylene-amineoxime brain scan (99mTc-HMPAO) [5].
uniform agreement on the neurological examination with exception of apnea test. Major differences between countries were present between presence of legal standards on organ transplantation, presence of practice guidelines for brain death for adults, number of physicians required to declare brain death, observational period or presence of required expertise of examining physicians. Only 40% of national practice guidelines require confirmatory testing.Accepted tests are conventional or multislice computerized tomography (MSCT) angiography, electroencephalography, evoked potentials, transcranial Doppler sonography (TCD), isotope angiography, Technetium-99m hexamethylpropylene-amineoxime brain scan (99mTc-HMPAO) [5]. After confirming the clinical diagnosis with one of the tests, the examined brain death person is declared dead.
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5. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 5, 2009, No. 1 , , ,

Manovich and Novicova, MD); Somatosensory evoked potentials (Sofia, 1987; sec.ed.
Prof. Baykushev has published as a leading author some neurophysiological monographs: Clinical EMG ( Plovdiv, 1969, 1987, 1992); Stimulation EMG (Russian, Moscow, 1979 in collaboration with prof. Manovich and Novicova, MD); Somatosensory evoked potentials (Sofia, 1987; sec.ed. in German, Thieme Verlag, Leipzig, 1991); Therapeutic application of TMS (Plovdiv, 2004).
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6. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 5, 2009, No. 1 , , ,

Motor cortex transcranial magnetic stimulation topography assessed by distribution and size of evoked potentials.
Struppler A, Baykouchev S. Motor cortex transcranial magnetic stimulation topography assessed by distribution and size of evoked potentials.
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7. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 7, 2011, No. 2 , , ,

Hemianopsia was objectified by perimetry and visual evoked potentials.
The neurological status revealed right homonymous hemianopsia, anisoreflexia and right visual-spatial neglect. Finger agnosia; acalculia, left-right disorientation and constructive apraxia, alexia without agrafia were found. Hemianopsia was objectified by perimetry and visual evoked potentials. Neuropsychological assessment confirmed cardinal signs of Gerstmann syndrome and visual-spatial neglect.
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Assessment of visual function was performed by perimetry with kugel-perimeter-Goldmann and visual evoked potentials with hemistimulation (NeuroMEP4).
Assessment of visual function was performed by perimetry with kugel-perimeter-Goldmann and visual evoked potentials with hemistimulation (NeuroMEP4).
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Investigation of paternal visual evoked potentials (PVEP) with hemitype stimulation registered abnormal visual afferentation with delayed latencies, significantly reduced amplitudes and configuration abnormalities of P100 upon stimulation to the left hemisphere.
Investigation of paternal visual evoked potentials (PVEP) with hemitype stimulation registered abnormal visual afferentation with delayed latencies, significantly reduced amplitudes and configuration abnormalities of P100 upon stimulation to the left hemisphere.
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Hemianopsia is proved with objective ophthalmological examination, including perimetry and could be supported by patternal visual evoked potentials with half field stimulation.
A specialized battery of neuropsychological and ophthalmological tests for diagnosis and differentiation of symptoms hemineglect and hemianopsia is used [12, 14]. For hemineglect detection the classic tests of line bisection, crossing out the same type of characters presented in a wide range, drawing a daisy, clock test and simultaneous presentation of stimuli are applied [15]. Visual-spatial neglect usually recovers quickly and does not lead to permanent deficit. Hemianopsia is proved with objective ophthalmological examination, including perimetry and could be supported by patternal visual evoked potentials with half field stimulation. Hemianopsia usually remains permanent and disables the patients [6, 17]. Often patients with hemianopsia compensate the deficit with head adjustment to focus on the objects [11].
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8. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 8, 2012, No. 1 , , ,

motor evoked potentials, neurological diseases, pyramidal system, transcranial magnetic stimulation
motor evoked potentials, neurological diseases, pyramidal system, transcranial magnetic stimulation
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In spinal cord surgery the function of anterior and lateral tracts is monitored by TMS in contrast to somatosensory evoked potentials (SSEP) evaluating the conductivity of posterior tracts.
TMS is used for preoperative assessment of specific cortical areas (identification of the dominant hemisphere, localization of speech or motor areas), and intraoperative monitoring of corticospinal tract. Combining TMS with functional MRI optimizes surgery and reduces the risk of postoperative deficit [39, 40]. Application of high-frequency rTMS at lower frontal lobe of the dominant hemisphere leads to "speech arrest", which allows precise localization of cortical speech areas [14].This test is used as an alternative to the Wada test in preoperative preparation for temporal lobectomy. In spinal cord surgery the function of anterior and lateral tracts is monitored by TMS in contrast to somatosensory evoked potentials (SSEP) evaluating the conductivity of posterior tracts. The combined use of both methods, monitoring afferent and efferent conduction pathways, significantly reduces postoperative risk. The negative influence of inhalatory anesthetics on MEP generation at this stage is overcome by the application of
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Parkinson`s disease rigidity: Magnetic motor evoked potentials in a small hand muscle.
Cantello R, Gianelli M, Bettucci D, De Angelis S, Mutani R. Parkinson`s disease rigidity: Magnetic motor evoked potentials in a small hand muscle.
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The diagnostic value of motor evoked potentials.
Di Lazzaro V, Oliviero A, Profice P, Ferrara L, Saturno E, Pilato F, Tonali P. The diagnostic value of motor evoked potentials.
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Visual and motor evoked potentials in the course of multiple sclerosis.
Fuhr P, Borggrefe-Chappuis A, Schindler C, Kappos L. Visual and motor evoked potentials in the course of multiple sclerosis.
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A clinical study of motor evoked potentials using a triple stimulation technique.
Magistris MR, Rösler KM, Truffert A, Landis T, Hess CW. A clinical study of motor evoked potentials using a triple stimulation technique.
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Clinical applications of motor evoked potentials.
Rossini PM, Rossi S. Clinical applications of motor evoked potentials.
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Magnetic stimulation: motor evoked potentials.
Rothwell JC, Hallett M, Berardelli A, Eisen P, Rossini P, Paulus W. Magnetic stimulation: motor evoked potentials. Recommendations for the practice of clinical neurophysiology.
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He was the first to introduce motor evoked potentials in Bulgaria – first with electric current and later on – with magnetic stimulation.
Prof. Baykushev leaved a lasting mark in science as a neurologist, neurophysiologist, neuropsychologist, innovator and introducer of new directions in Electrophysiology. He was the first to introduce motor evoked potentials in Bulgaria – first with electric current and later on – with magnetic stimulation. Together with Prof. Hopf of Germany he first described the phenomenon of false positive decrement of M-potentials after repetitive stimulation. He was a major contributor to the creation and development of Electromyography in Bulgaria, organized the first courses in EMG (1970, 1971), developed and implemented new methods, opened up new laboratories and gave a continuous methodological support to all neurophysiologists in the country.
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9. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 9, 2013, No. 2 , , ,

Changes in Dopplersonography Parameters of Vertebral Arteries and Evoked Potentials in Patients with Asymptomatic Ischemic Disturbances of Cerebral Circulation.
Changes in Dopplersonography Parameters of Vertebral Arteries and Evoked Potentials in Patients with Asymptomatic Ischemic Disturbances of Cerebral Circulation.
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velocity and evoked potentials.
velocity and evoked potentials. The study confirm the clinical impact of doppler sonography and evoked potentials by patients with asymptomatic ischemic disturbances of cerebral circulation, which can be used as objective criteria, regarding the diagnosis and therapy strategy.
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The study confirm the clinical impact of doppler sonography and evoked potentials by patients with asymptomatic ischemic disturbances of cerebral circulation, which can be used as objective criteria, regarding the diagnosis and therapy strategy.
velocity and evoked potentials. The study confirm the clinical impact of doppler sonography and evoked potentials by patients with asymptomatic ischemic disturbances of cerebral circulation, which can be used as objective criteria, regarding the diagnosis and therapy strategy.
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duplex sonography, evoked potentials, MRI.
duplex sonography, evoked potentials, MRI.
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A 31-year-old man with amaurosis after eye blast trauma at the age of 17, underwent multiple operations and different eye-procedures (including a silicon vitreous filling) was studied by parallel application of multimodal 2D/3D/4D ultrasound eye-imaging, electroencephalography, visual and auditory evoked potentials, CT and MRI.
A 31-year-old man with amaurosis after eye blast trauma at the age of 17, underwent multiple operations and different eye-procedures (including a silicon vitreous filling) was studied by parallel application of multimodal 2D/3D/4D ultrasound eye-imaging, electroencephalography, visual and auditory evoked potentials, CT and MRI.
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The EEG repetitive visual stimulation and visual evoked potentials were associated with color hallucinations during and after the investigation (Charles Bonnet syndrome).
The right eye was with pars plana vitrectomy and corneal leucoma and the left bulb was with phthisis. Ocular fundus was not visible on both sides. The 2D/3D/4D eye images showed severe deformation of the left eye with chronic retinal detachment and optic nerve atrophy. The right bulb was fully anechoic, with a normal shape but no images of the lens, optic disc and optic nerve were obtained due to silicon filling of the vitreous. Both ophthalmic arteries and veins had normal ultrasound pattern. The EEG repetitive visual stimulation and visual evoked potentials were associated with color hallucinations during and after the investigation (Charles Bonnet syndrome). These findings correlated with neuroimaging studies where normal occipital cortex, optic nerve atrophy and severe eye deformation were found.
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10. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 10, 2014, No. 1 , , ,

the age of 17, underwent multiple operations and different eye-procedures (including a silicon vitreous filling) was studied by parallel application of multimodal 2D/3D/4D ultrasound eye-imaging, electroencephalography, visual and auditory evoked potentials and MRI.
the age of 17, underwent multiple operations and different eye-procedures (including a silicon vitreous filling) was studied by parallel application of multimodal 2D/3D/4D ultrasound eye-imaging, electroencephalography, visual and auditory evoked potentials and MRI.
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The EEG repetitive visual stimulation and visual evoked potentials were associated with color hallucinations during and after the investigation (Charles Bonnet syndrome).
The right eye was with pars plana vitrectomy and corneal leucoma and the left bulb was with phthisis. Ocular fundus was not visible on both sides. The 2D/3D/4D eye images showed severe deformation of the left eye with chronic retinal detachment and optic nerve atrophy. The right bulb was fully anechoic, with a normal shape but no images of the lens, optic disc and optic nerve were obtained due to silicon filling of the vitreous. Both ophthalmic arteries and veins had normal ultrasound pattern. The EEG repetitive visual stimulation and visual evoked potentials were associated with color hallucinations during and after the investigation (Charles Bonnet syndrome). These findings correlated with neuroimaging studies where normal occipital cortex, optic nerve atrophy and severe eye deformation were found.
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No responce was registered during examination of the visual evoked potentials.
No responce was registered during examination of the visual evoked potentials.
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The parallel application of EEG and visual evoked potentials gives additional information about the functional capacity of the retina, visual pathways and the occipital cortex after the trauma.
The parallel application of EEG and visual evoked potentials gives additional information about the functional capacity of the retina, visual pathways and the occipital cortex after the trauma. Dispite of the practical blindness established from the neuro-ophthalmological examination, during the repetitive photostimulation a change in the baseline alpha activity was registered on the occipital cortex, which is significant only in the left temporooccipital area during stimulation of the right eye. This electrophisiological sign for photic influence on the visual cortex allows us to assume the existence of some functional capacity reserve of the right eye and visual pathways, which matters for the prognosis of the illness.
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Prognostic factors for poor neurological outcome are based on: electroencephalographic data; somatosensory evoked potentials; bispectral index (BIS); increased pressure of the cerebrospinal fluid; biochemical markers: neuron-specific enolase (NSE) and S-100
СА is a complex of diagnostic methods for prognosis of neurologycal status, cardiologycal status and respiration. Prognostic factors for poor neurological outcome are based on: electroencephalographic data; somatosensory evoked potentials; bispectral index (BIS); increased pressure of the cerebrospinal fluid; biochemical markers: neuron-specific enolase (NSE) and S-100
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11. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 10, 2014, No. 2 , , ,

motor evoked potentials, rehabilitation, stroke, transcranial magnetic stimulation
motor evoked potentials, rehabilitation, stroke, transcranial magnetic stimulation
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Motor evoked potentials (MEP) in lower limbs early on predicted better physical functioning at 3 weeks and at 6 months in all patients (p
This syllabus discusses the usefulness of navigated transcranial magnetic stimulation (TMS) as a brain imaging tool in stroke patients. TMS assessment of the motor tract function and walking ability over time in stroke patients with poor or non-existent initial gait is in the focus. Main data is derived from twenty-seven patients, first assessed one week post-stroke, and followed up for six months. Outcome measure in these patients was walking ability. Motor evoked potentials (MEP) in lower limbs early on predicted better physical functioning at 3 weeks and at 6 months in all patients (p
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NA, not applicable; ICH; intracerebral hemorrhage; MEPs in TA, motor-evoked potentials elicited from affected tibialis anterior; yes/no; FAC, functional ambulatory category: 0=unable to walk or needs two assistants, 1=needs continuous support from someone while walking to shift weight or maintain balance, 2=needs continuous/ occasional support from someone while walking to maintain balance and coordination, 3=needs someone walking alongside to give confidence, none of the patients were in the more independent FAC categories 4 or 5; MMAS, Modified Motor Assessment Scale (scores 0 – 48).
P-values obtained using independent samples t-test, Mann-Whitney U-test or Kruskall-Wallis H-test. NA, not applicable; ICH; intracerebral hemorrhage; MEPs in TA, motor-evoked potentials elicited from affected tibialis anterior; yes/no; FAC, functional ambulatory category: 0=unable to walk or needs two assistants, 1=needs continuous support from someone while walking to shift weight or maintain balance, 2=needs continuous/ occasional support from someone while walking to maintain balance and coordination, 3=needs someone walking alongside to give confidence, none of the patients were in the more independent FAC categories 4 or 5; MMAS, Modified Motor Assessment Scale (scores 0 – 48).
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12. NEUROSONOLOGY AND CEREBRAL HEMODYNAMICS, vol. 13, 2017, No. 2 , , ,

Assessment of trigeminal somatosensory evoked potentials in burning mouth syndrome.
Gao S, Wang Y, Wang Z. Assessment of trigeminal somatosensory evoked potentials in burning mouth syndrome.
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