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Abstract
Pain-related evoked potentials (PREPs) represent a novel method for the evaluation of peripheral and central nociceptive pathways, e.g. in the diagnosis of small fiber neuropathy (SFN) or after therapeutic interventions for headache. Compared to contact heat-evoked and laser-evoked potentials, recording of PREPs is less stressful for the subjects and technically less demanding. The clinical usefulness of PREPs has been described for SFN associated with diabetes, HIV and hepatitis C infections as well as in headache and facial pain disorders. They have also been evaluated after interventional methods, such as direct current stimulation (tDCS). The article reviews and discusses the advantages and pitfalls of this technique in the context of recent clinical studies as compared to other paradigms of peripheral electrical stimulation and delineates perspectives and possible indications.
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Abstract
Although there is no clear evidence, minimally invasive hip arthroplasty seems to be associated with slightly higher complication rates compared to standard procedures. Major nerve palsy is one of the least common but most distressing complications. The key for minimizing the incidence of nerve lesions is to analyze preoperative risk factors, accurate knowledge of the anatomy and minimally invasive techniques. Once clinical signs of nerve injury are evident, the first diagnostic steps are localization of the lesion and quantification of the damage pattern. Therefore, clinical assessment of the neurological deficits should be performed as soon as possible. Apart from rare cases of isolated transient conduction blockade or complete transection, the damage pattern is mostly combined. Thus, there can be evidence for dysfunction of nerve conduction (neuropraxia) and structural nerve damage (axonotmesis or neurotmesis) simultaneously. Because the earliest signs of denervation are detectable via electromyography after 1 week, it is not possible to make any reliable prognosis within the first days after nerve injury using electrophysiological methods. This review article should serve as a guideline for prevention, diagnostics and therapy of neural lesions in minimally invasive hip arthroplasty.
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[Lesions of the peripheral nerves: MR neurography as an innovative supplement to electrodiagnostics]. HANDCHIR MIKROCHIR P 2012; 44:155-62. [PMID: 22833069 DOI: 10.1055/s-0032-1324371] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
The diagnostic work-up of peripheral neuropathies largely depends on neurophysiological investigations. Recently, progress in magnetic resonance imaging (MRI) has lead to new perspectives in the diagnostics of disorders of the peripheral nervous system (PNS). Experimental data show how MR neurography visualises axonal and demyelinating lesions of the PNS. In clinical use, difficult cases of focal nerve compression, traumatic or inflammatory lesions can be solved by the combination of MR neurography and neurophysiology. In particular, the localisation of nerve lesions can be improved by MR techniques. Furthermore, MR neurography enables new insights in the pathophysiology of neuropathies which will be shown for diabetic polyneuropathy.
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Läsionen peripherer Nerven: MR-Neurografie als innovative Ergänzung zur Elektrodiagnostik. KLIN NEUROPHYSIOL 2011. [DOI: 10.1055/s-0031-1291231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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Abstract
The postpartum dysgalactia syndrome (PDS) represents one of the most important diseases after parturition in sows. The genetic background of the disease has been investigated some time ago and heritability estimates around 0.10 have been obtained. To compute current estimates, a dataset of 1680 sampled sows and their 2001 clinically examined litters was used for variance components estimation with a threshold liability model. Affected sows were defined through clinical examination 12-48 h after parturition. Posterior mean of additive genetic variance was 0.10 and estimated heritability for PDS averaged 0.0879 with a 95% confidence interval of 0.0876 and 0.0881. The results are in agreement with those of other studies and emphasize the importance of considering the genetic predisposition for susceptibility to PDS as well as of additional factors including hygiene and management conditions.
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Abstract
BACKGROUND Myotonic dystrophy type 2/proximal myotonic myopathy (DM 2/PROMM) is an autosomal dominant multisystem disorder characterized by proximal muscle weakness, myotonia and musculoskeletal pain. PATIENTS AND METHODS We describe five patients with DM 2/PROMM in whom musculoskeletal pain was the most prominent feature. We used the McGill Pain Questionnaire for standardized pain assessment. RESULTS The patients reported multiple types of musculoskeletal pain including tenderness, cold-enhanced and exercise-related musculoskeletal pain. Exercise-induced or -enhanced musculoskeletal pain was indicated as the most disabling feature. CONCLUSIONS Myotonic dystrophy type 2 should be considered as one of the differential diagnoses in patients with musculoskeletal pain. Family history and laboratory tests provide critical diagnostic clues.
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Autonome kardiovasuläre Regulationsstörung bei Patienten mit klinisch isoliertem Syndrom und Multiple Sklerose: eine prospektive Längsschnittuntersuchung. AKTUELLE NEUROLOGIE 2009. [DOI: 10.1055/s-0029-1238572] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Enzyme replacement therapy with alglucosidase alfa in 44 patients with late-onset glycogen storage disease type 2: 12-month results of an observational clinical trial. J Neurol 2009; 257:91-7. [DOI: 10.1007/s00415-009-5275-3] [Citation(s) in RCA: 166] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2009] [Revised: 07/07/2009] [Accepted: 07/23/2009] [Indexed: 10/20/2022]
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Neurographische Differenzialdiagnose chronischer motorischer Neuropathien. KLIN NEUROPHYSIOL 2009. [DOI: 10.1055/s-0029-1216053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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The effect of heated mash on performance and feeding behavior of newly weaned piglets. J Anim Sci 2008; 86:3600-7. [PMID: 18641176 DOI: 10.2527/jas.2008-0909] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The influence of heated mash on growth and feeding behavior of newly weaned piglets was investigated. An automatically ventilated nursery with 4 identical pens was used. Twenty piglets weaned at 21 d were housed in each pen. The experiment was repeated 3 times. In total, data were obtained from 240 piglets of 12 pens. The pens were provided with a sensor-controlled, automatic feeding device, which dosed a ready-mixed mash in a trough. In each of 2 of the pens, the feed was mixed with warm water at 36 degrees C, during the first week of weaning. This heated mash had a temperature of 34 degrees C at the outlet of the automatic feeding device (experimental group). In the 2 control groups, the water was not heated and the temperature of the mash was 14 degrees C at the outlet of the automatic feeding device. From the second week of weaning, the mash had a temperature of 14 degrees C at the outlet of the automatic feeding device in all 4 pens. Piglets were weighed at weaning, at weekly intervals through 49 d after weaning, and on d 139 after weaning. Behavior of the whole group, as well as behavior of selected focal animals, was evaluated for the first 48 h after weaning. In addition, skin condition of piglets was assessed on day of weaning and on d 7, 14, and 21 after weaning. The amount of feed consumed by the piglets was recorded on a daily basis throughout the whole period of nursery. Over the total period of the study, piglets in the experimental group gained 3.98 +/- 1.66 kg (P = 0.047) more than the control group. The difference was particularly clear during the nursery period (49 d) when the experimental group gained 0.89 +/- 0.23 kg more than the control group (P = 0.03). Although piglets in the control group consumed 37.15 +/- 0.15 kg of feed over the complete nursery period, the experimental group consumed 42.56 +/- 0.15 kg per piglet (P = 0.023). By heating the mash feed in the first week after weaning, both growth performance as well as feed consumption of piglets could be increased. No difference in feed conversion and feeding behavior was found between groups.
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Topographic specificity of LTD-like plasticity in non-dystonic body parts in focal dystonia. Brain Stimul 2008. [DOI: 10.1016/j.brs.2008.06.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Neurophysiologische und morphologische Aspekte der Nervenleitung. I. Grundlagen und Problematik des Leitungsblocks. KLIN NEUROPHYSIOL 2008. [DOI: 10.1055/s-2008-1060161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Die Abhängigkeit der Aktionspotentialamplitude motorischer Einheiten von der Rekrutierungsschwelle: Implikationen für die Elektromyographie. KLIN NEUROPHYSIOL 2008. [DOI: 10.1055/s-2008-1060945] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Elektrophysiologische Diagnostik neuromuskulärer Übertragungsstörungen. KLIN NEUROPHYSIOL 2008. [DOI: 10.1055/s-2008-1060051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Neurophysiologische und morphologische Aspekte der Nervenleitung II: Befunde bei wichtigen neuropathischen Krankheitsbildern. KLIN NEUROPHYSIOL 2008. [DOI: 10.1055/s-2008-1060164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Socializing piglets before weaning: effects on behavior of lactating sows, pre- and postweaning behavior, and performance of piglets. J Anim Sci 2008; 84:2847-55. [PMID: 16971588 DOI: 10.2527/jas.2005-606] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
This study evaluated how socializing piglets before weaning affects behavior of lactating sows and the pre- and postweaning behavior and performance of piglets. Two farrowing rooms, each with 6 pens, and 1 nursery with 4 pens were used. In total, data were obtained from 24 sows and their litters. In each farrowing room, the solid barriers between 3 farrowing pens were removed on d 12 after farrowing, and the sows remained confined in their crates (experimental group). In the other 3 farrowing pens of each farrowing room, sows and their litters were kept under conventional conditions until weaning (control group). All piglets were weaned 28 d after birth. After weaning, piglets from each group remained together in 1 pen of the nursery. The behavior of sows (lying, standing, sitting, nursing) and piglets (lying, active, suckling) in the farrowing rooms was observed for 24 h before and for 48 h after removal of the barriers between the pens. In addition, behavior (active, lying, feeding, agonistic behavior) of piglets was observed in the nursery during the initial 48-h period after weaning. Each piglet was weighed on d 5, 12, and 28 after birth and thereafter weekly until the fifth week of rearing. In the farrowing room, mixing of litters did not influence behavior of piglets and sows. Preweaning weight gain of the piglets did not differ (P = 0.60) between the treatments. In the initial 48 h after weaning, less agonistic behavior (P < 0.001) was observed in piglets belonging to the experimental group. During 5 wk of rearing, piglets in the experimental group gained more weight compared with the control group (P = 0.05). The advantage shown by the experimental group became especially conspicuous in the first week after weaning (P = 0.05). By socializing unfamiliar piglets before weaning, stress due to mixing could at least be distanced in time from the other burdens of weaning, thereby improving performance.
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Differential treatment of sternocleidomastoid and longus colli muscles in anterocollis patients with and without anterior shift. KLIN NEUROPHYSIOL 2007. [DOI: 10.1055/s-2007-1032255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Orthostatic tremor in three brothers. J Neurol 2007; 254:1759-60. [PMID: 17657402 DOI: 10.1007/s00415-007-0647-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2007] [Revised: 04/27/2007] [Accepted: 05/03/2007] [Indexed: 10/23/2022]
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Biomechanics of femoral deformity in osteogenesis imperfecta (OI): a quantitative approach to rehabilitation. CONFERENCE PROCEEDINGS : ... ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL CONFERENCE 2007; 2004:4884-7. [PMID: 17271407 DOI: 10.1109/iembs.2004.1404351] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Skeletal deformity is an important characteristic of osteogenesis imperfecta (OI). To study the influence of deformity in stress/strain distribution, a finite element analysis (TEA) of the femur during physiological loading was developed. The diaphysis was altered mathematically to reflect different clinical deformities of OI. Joint reaction and muscle forces were adapted from the literature to reproduce the loading environment at 10% gait cycle (loading response, LR). The goal of the study was to quantitatively describe the stress/strain distribution while comparing the extent of deformity. The results showed that deformity could deteriorate the stress/strain distribution. The study offers a quantitative means for rehabilitative intervention.
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Gestörte topographische Spezifität assoziativer Plastizität bei zervikaler Dystonie. KLIN NEUROPHYSIOL 2007. [DOI: 10.1055/s-2007-976426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Neurophysiologische Untersuchungen in der Diagnostik von Polyneuropathien. KLIN NEUROPHYSIOL 2007. [DOI: 10.1055/s-2007-968162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Kinematic analysis of upper extremity joint motion in children using posterior walkers. CONFERENCE PROCEEDINGS : ... ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL CONFERENCE 2007; 2004:5100-3. [PMID: 17271465 DOI: 10.1109/iembs.2004.1404409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
This study applies an upper extremity model to analyze motion in 25 children with cerebral palsy using posterior walkers. The study indicates that throughout a gait cycle, the shoulders and wrist are in extension and the elbows are flexed. It also reveals that the elbows are the most asymmetrical joint of the upper extremities during walker-assisted ambulation.
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Rehabilitative orthotics evaluation in children with diplegic cerebral palsy: kinematics and kinetics. CONFERENCE PROCEEDINGS : ... ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL CONFERENCE 2007; 2004:4874-6. [PMID: 17271404 DOI: 10.1109/iembs.2004.1404348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Ankle foot orthoses (AFOs) are prescribed for ambulatory children with spastic diplegia to improve biomechanical alignment and functional capability. The purpose of this study was to employ quantitative motion analysis of the lower extremity to investigate two rehabilitative orthotics. The effects of hinged ankle foot orthoses (HAFO) and dynamic ankle foot orthoses (DAFO) for joint ankle management in children with cerebral palsy were compared. Sixteen (16) independently ambulatory children with a diagnosis of spastic diplegic cerebral palsy (7.5 +/- 2.9 yrs.) were included in the study. The biomechanical effects of two AFO designs were compared to barefoot using a 3-D motion analysis system. Significant differences between braced and unbraced conditions were found in peak ankle dorsiflexion, and peak ankle plantarflexion, knee stance peak flexion, knee swing peak flexion, hip stance peak flexion, and peak ankle plantarflexion moment (p < 0.01). Differences between the HAFO and DAFO were not seen in the kinematic and kinetic metrics. Further development of dynamic testing is suggested in order to advance our understanding of orthotic intervention. The value of quantitative description of gait dynamics is clearly indicated for rehabilitative application.
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Prognose der Amyotrophen Lateralsklerose unter differenzierter Berücksichtigung des Manifestationsortes. AKTUELLE NEUROLOGIE 2007. [DOI: 10.1055/s-2007-987970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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LGMD 2I due to the common mutation 826C>A in the FKRP gene presenting as myopathy with vacuoles and paired-helical filaments. ACTA MYOLOGICA : MYOPATHIES AND CARDIOMYOPATHIES : OFFICIAL JOURNAL OF THE MEDITERRANEAN SOCIETY OF MYOLOGY 2006; 25:73-76. [PMID: 18593008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We report on two unrelated patients clinically presenting with late-onset progressive limb girdle weakness; cardiomyopathy was seen in one patient. Muscle biopsy revealed a necrotic myopathy with numerous rimmed vacuoles, ultrastructurally typical paired-helical filaments, and reduced immunohistochemical staining for alpha-dystroglycan. Quadriceps sparing hereditary inclusion body myopathy due to mutations in GNE gene, and OPMD due to PABPN1 mutations were excluded, genetically. We detected a homozygous mutation of the FKRP gene (826C>A) in both patients. Mutations of FKRP have been reported in congenital muscular dystrophies, LGMD2I, cardiomyopathy and hyperCKemia, but not in myopathies with vacuoles and paired-helical filaments. Therefore, our findings further extend the morphological variability of muscular dystrophies due to FKRP mutations.
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Multifokale motorische Neuropathie: Klinische Merkmale, Pathophysiologie und Therapie. KLIN NEUROPHYSIOL 2006. [DOI: 10.1055/s-2006-940139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Abstract
Evoked potentials (EP) have a role in making the diagnosis of multiple sclerosis (MS) but their implication for predicting the future disease course in MS is under debate. EP data of 94 MS patients examined at first presentation, and after five and ten years were retrospectively analysed. Patients were divided into two groups in relation to the prior duration of disease at the time point of first examination: group 1 patients (n=44) were first examined within two years after disease onset, and group 2 patients (n=50) at later time points. As primary measures sum scores were calculated for abnormalities of single and combined EP (visual (VEP), somatosensory (SEP), magnetic motor evoked potentials (MEP)). In patients examined early after disease onset (group 1), a significant predictive value for abnormal EP was found with MEP and SEP sum scores at first presentation correlating significantly with Expanded Disability Status Scale (EDSS) values after five years, while the VEP sum score was not. The cumulative number of abnormal MEP, SEP and VEP results also indicated higher degrees of disability (EDSS > or = 3.5) after five years. Combined pathological SEP and MEP findings at first presentation best predicted clinical disability (EDSS > or = 3.5) after five years (odds ratio 11.0). EP data and EDSS at first presentation were not significantly linked suggesting that EP abnormalities at least in part represented clinically silent lesions not mirrored by EDSS. For patients in later disease phases (group 2), no significant associations between EP data at first presentation and EDSS at five and ten years were detected. Together with clinical findings and MR imaging, combined EP data may help to identify patients at high risk of long-term clinical deterioration and guide decisions as to immunomodulatory treatment.
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Fehlende Interferenz einer repetitiven transkraniellen 1-Hz oder Theta-burst Magnetstimulation über dem posterioren Parietalkortex mit dem sensorischen Trickmanöver bei Tortikollis-Patienten. AKTUELLE NEUROLOGIE 2006. [DOI: 10.1055/s-2006-953038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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„Kranieller Schreibkrampf“ – Eine ungewöhnliche Übergebrauchsdystonie nach beiderseitiger traumatischer Armamputation. AKTUELLE NEUROLOGIE 2006. [DOI: 10.1055/s-2006-953005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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„Out-of-body experience“ als mögliches Anfallssymptom bei einem Patienten mit rechtsparietaler Läsion. DER NERVENARZT 2005; 76:1259, 1261-2. [PMID: 15830175 DOI: 10.1007/s00115-005-1904-y] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Out-of-body experiences are reported in a variety of diseases and physiologic conditions. We report a 44-year-old patient with epigastric auras, psychomotor and grand mal seizures, and paroxysmal experiences during which he believed to have left his body and seen himself from the outside. Electroencephalography showed a right temporal and right parietal seizure pattern on several occasions, and a lesion in the right parietal lobe was detected by cranial magnetic resonance imaging. Histological examination showed a pleomorphic xanthoastrocytoma. Following extirpation of the lesion, the patient has been seizure-free for 5 years.
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Abstract
Chronic myelitis from Whipple's disease of the spinal cord is extremely rare. The differential diagnosis includes chronic inflammatory lesions, viral or bacterial infections, and tumours of the spinal cord. Here we present a 50-year-old man with mild sensory deficits because of a large lesion of the cervical spinal cord who markedly showed improvement during probatory antibiotic therapy. PCR and jejunal biopsy were initially negative and only later confirmed the diagnosis of Whipple's disease. Clinical and neuroradiological criteria are suggested which may be of help in the early diagnosis of spinal Whipple's disease before confirmation by molecular biology or histology.
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Recurrent spontaneous "neuroleptic malignant syndrome" in the absence of neuroleptic medication in probable dementia with Lewy bodies. J Neurol 2005; 252:1122-4. [PMID: 15765193 DOI: 10.1007/s00415-005-0804-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2004] [Revised: 01/10/2005] [Accepted: 01/17/2005] [Indexed: 11/30/2022]
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Professor Dr. med. Kenneth Ricker (1935 - 2004). KLIN NEUROPHYSIOL 2004. [DOI: 10.1055/s-2004-828383] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Associative Motor Cortex Plasticity is Reduced on the Non-Affected Side in Focal Hand Dystonia. KLIN NEUROPHYSIOL 2004. [DOI: 10.1055/s-2004-832165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Characteristics of Sensory Trick Maneuvers in Idiopathic Oromandibular Jaw Opening Dystonia. KLIN NEUROPHYSIOL 2004. [DOI: 10.1055/s-2004-832166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Associative Motor Cortical Plasticity is Modulated by the Activation History of Motor Cortex. KLIN NEUROPHYSIOL 2004. [DOI: 10.1055/s-2004-832181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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MRI detection of peripheral nerve denervation and regeneration: correlation with electromyography and histology. KLIN NEUROPHYSIOL 2004. [DOI: 10.1055/s-2004-832229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Prognostischer Wert von evozierten Potentialen für den Krankheitsverlauf bei der Multiplen Sklerose. AKTUELLE NEUROLOGIE 2004. [DOI: 10.1055/s-2004-833093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Far field potentials from the brain stem after transcutaneous vagus nerve stimulation. J Neural Transm (Vienna) 2003; 110:1437-43. [PMID: 14666414 DOI: 10.1007/s00702-003-0087-6] [Citation(s) in RCA: 131] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2003] [Revised: 01/01/2003] [Accepted: 10/17/2003] [Indexed: 11/26/2022]
Abstract
Recently, the vagus nerve has gained particular interest in neuropsychiatry, as neurodegenerative diseases like Alzheimer's and Parkinson's disease are supposed to affect the brainstem nuclei of the vagus nerve early in their course. In addition, electric stimulation of the vagus nerve has therapeutic effects in otherwise therapy-refractory epilepsies and depressions. So far, no method is available to assess vagus nerve function in this context. On this background and based on the established techniques of early acoustic evoked potentials we investigated if a transcutaneous electric stimulation of the sensory auricular branch of the vagus nerve innervating parts of the outer ear is feasible in healthy subjects using this hypothesis-generated approach. We were able to record a clear, reproducible Vagus Sensory Evoked Potential (VSEP) measured as far field potential probably originating in vagus nuclei in the brainstem. Further studies are needed to test the interindividual stability and test-retest reliability of this new method before potential diagnostic and therapeutic applications might be evaluated.
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Abstract
The authors report three patients with chronic sciatic pain without focal neurologic deficit. Sitting or lying on the affected side provoked pain, and standing and walking relieved it. MRI revealed varicotic gluteal vessels compressing the sciatic nerve. Decompression of the nerve resulted in complete and permanent pain relief. Sciatic or buttock pain in patients with varicosities and pain provocation in the sitting or lying position suggests this neurovascular compression syndrome.
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Abstract
The authors studied standard autonomic function tests and measures of heart rate variability in 60 patients with multiple sclerosis (MS) and correlated results with the Fatigue Severity Scale and the Modified Fatigue Impact Scale. The authors found that autonomic responses correlated with fatigue resembling a hypoadrenergic orthostatic response, possibly due to a sympathetic vasomotor lesion with intact vagal heart control. Treatments to control sympathetic dysfunction for MS-associated fatigue deserve further study.
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Die Wirksamkeit sensibler Trickmanöver bei zervikalen Dystonien ist winkelabhängig. KLIN NEUROPHYSIOL 2003. [DOI: 10.1055/s-2003-816536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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46
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Fehlende Interferenz einer repetitiven transkraniellen Magnetstimulation über dem posterioren Parietalkortex mit dem sensorischen Trickmanöver bei Tortikollis-Patienten. KLIN NEUROPHYSIOL 2003. [DOI: 10.1055/s-2003-816535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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47
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Differentiation of parkinsonian syndromes according to differences in executive functions. J Neural Transm (Vienna) 2003; 110:983-95. [PMID: 12938023 DOI: 10.1007/s00702-003-0011-0] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Groups of patients with Parkinson's disease (PD), striatonigral degeneration-type multiple system atrophy (MSA) or progressive supranuclear palsy (PSP) with motor disability stages II and III according to Hoehn and Yahr, and a healthy control group were compared using neuropsychological tests of executive functions. The results indicate that all three patient groups were impaired in the tests of executive functions. In comparison with healthy subjects, the three patient groups showed impaired performance regarding verbal fluency, problem solving and verbal and figural working memory. Patients with PD differed significantly from healthy subjects in a test of verbal recency, while patients with MSA or PSP were unimpaired. The comparison of patient groups revealed no differences between PD and MSA patients. However, patients with PSP showed greater impairment in both phonemic and semantic fluency than patients with PD or MSA. Using discriminant function analysis, it was found that variables derived from four verbal fluency tasks (simple and alternate semantic and phonemic fluency) discriminated among the three patient groups at a level significantly exceeding chance. Over 90% of patients with PSP were correctly classified. Patients with PD and MSA were correctly classified in over 70% of cases. These results suggest that verbal fluency tasks may be sensitive measures in the differential diagnosis of PD, MSA and PSP.
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48
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Letter to the Editor. Mult Scler 2003. [DOI: 10.1191/1352458503ms882xx] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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49
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Creatine monohydrate in DM2/PROMM: a double-blind placebo-controlled clinical study. Proximal myotonic myopathy. Neurology 2003; 60:500-2. [PMID: 12578937 DOI: 10.1212/01.wnl.0000044405.29988.e1] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
The efficacy and safety of creatine monohydrate (Cr) in patients with myotonic dystrophy type 2/proximal myotonic myopathy were studied in a small placebo-controlled double-blind trial. Twenty patients received either Cr or placebo for 3 months. After 3 months, there were no significant differences of muscle strength as assessed by hand-held dynamometry, testing of maximum grip strength, Medical Research Council scoring, and the Neuromuscular Symptom Score between the two groups. Some measures indicated trends toward mild improvement with Cr. Myalgia improved in two patients.
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50
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Abstract
Autonomic dysregulation is part of the complex degenerative process in amyotrophic lateral sclerosis (ALS). To investigate this, sweating was examined at rest in 39 patients with ALS in comparison with a control group. Sweat was collected over a 30 second period over the thenar and hypothenar eminences and on the sole of the foot, using a commercial device based on vapour pressure gradient. The measurements were repeated after three and six months in 10 patients for longitudinal analysis. In early ALS, patients had significantly higher skin water loss than control subjects over the thenar and the hypothenar eminences. In advanced disease stages, sweating was decreased at all sites compared with controls. A significant decline in sweat secretion of about 40% was found over a six month period. The findings suggest an abnormal sympathetic activity with hyperhidrosis in early ALS and a reduction in sweat production as the disease progresses.
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