Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 131
Filtrar
Mais filtros

Bases de dados
País/Região como assunto
Tipo de documento
Intervalo de ano de publicação
1.
Ultrasound Obstet Gynecol ; 64(1): 112-119, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38285441

RESUMO

OBJECTIVES: To assess the evolution of levator ani muscle (LAM) avulsion from 1 year to 8 years after first delivery in women with and those without subsequent vaginal delivery. In addition, to assess whether women with full or partial avulsion 8 years after first delivery have larger LAM hiatal area and more symptoms of pelvic organ prolapse compared to women with normal LAM insertion. METHODS: In this single-center longitudinal study, 195 women who were primiparous at the start of the study were included and underwent transperineal ultrasound examination 1 year and 8 years after first delivery. Muscle insertion was assessed by tomographic ultrasound imaging in the axial plane. Full LAM avulsion was defined as abnormal muscle insertion in all three central slices. Partial LAM avulsion was defined as abnormal muscle insertion in one or two central slices. Eight years after the first delivery, LAM hiatal area was assessed at rest, during maximum pelvic floor muscle contraction and on maximum Valsalva maneuver. To assess symptoms of pelvic organ prolapse, the vaginal symptoms module of the International Consultation on Incontinence Questionnaire was used. RESULTS: At 1-year follow-up, 25 (12.8%) women showed signs of LAM avulsion, of whom 20 fulfilled the sonographic criteria of full avulsion and five of partial avulsion. Eight years after the first delivery, 35 (17.9%) women were diagnosed with avulsion, of whom 25 were diagnosed with full avulsion and 10 with partial avulsion. No woman with partial or full avulsion at 1 year had improved avulsion status at 8-year follow-up. Of the 150 women who had subsequent vaginal delivery, 21 (14.0%) women were diagnosed with partial or full LAM avulsion 1 year after first delivery, and 31 (20.7%) women were diagnosed with partial or full avulsion 8 years after first delivery. Of the 45 women without subsequent vaginal delivery, one woman with partial avulsion 1 year after first delivery was diagnosed with full avulsion at 8-year follow-up. All women with full avulsion at 1-year follow-up were diagnosed with full avulsion at 8-year follow-up regardless of whether they had subsequent vaginal delivery. At 8-year follow-up, women with full avulsion had statistically significantly larger LAM hiatal area compared to women with normal muscle insertion. Mean ± SD vaginal symptom scores ranged between 5.5 ± 5.7 and 6.0 ± 4.0 and vaginal symptom quality of life scores ranged between 0.9 ± 1.4 and 1.5 ± 2.2 and did not differ significantly between women with normal muscle insertion and women with partial or full avulsion at 8-year follow-up. CONCLUSIONS: More LAM avulsions were present 8 years compared with 1 year after first delivery in women with subsequent vaginal delivery. Except for one primipara, all women without subsequent vaginal delivery had unchanged LAM avulsion status between 1 year and 8 years after their first delivery. Larger LAM hiatal area was found in women with full avulsion compared to those with normal muscle insertion at 8-year follow-up. Vaginal symptoms scores were low and did not differ between women with normal muscle insertion and those with partial or full avulsion at 8-year follow-up. © 2024 The Authors. Ultrasound in Obstetrics & Gynecology published by John Wiley & Sons Ltd on behalf of International Society of Ultrasound in Obstetrics and Gynecology.


Assuntos
Parto Obstétrico , Diafragma da Pelve , Prolapso de Órgão Pélvico , Ultrassonografia , Humanos , Feminino , Diafragma da Pelve/diagnóstico por imagem , Diafragma da Pelve/lesões , Diafragma da Pelve/fisiopatologia , Adulto , Estudos Longitudinais , Parto Obstétrico/efeitos adversos , Parto Obstétrico/métodos , Seguimentos , Prolapso de Órgão Pélvico/diagnóstico por imagem , Prolapso de Órgão Pélvico/fisiopatologia , Prolapso de Órgão Pélvico/etiologia , Ultrassonografia/métodos , Gravidez , Contração Muscular/fisiologia
2.
BMC Neurol ; 21(1): 90, 2021 Feb 26.
Artigo em Inglês | MEDLINE | ID: mdl-33632158

RESUMO

BACKGROUND: The primary symptoms of restless legs syndrome (RLS) are sleep onset insomnia and difficulty to maintain sleep. Previous studies have shown that regular physical activity can reduce the risk of developing RLS. However, the relationship between physical activity and sleep quality parameters in individuals suffering from RLS has not yet been investigated by applying accelerometry. Thus, the present study investigates the impact of physical activity (measuring both intensity levels and duration of physical activity) during the day (7-12 h, 12-18 h, 18-23 h) on sleep quality in patients suffering from idiopathic RLS by applying a real-time approach. METHODS: In a sample of 47 participants suffering from idiopathic RLS, physical activity and sleep quality were measured over one week using accelerometers. For data analysis, physical activity levels and step counts during three periods of the day (morning, afternoon, evening) were correlated with sleep quality parameters of the subsequent night. RESULTS: This observational study revealed that in most instances physical activity was not correlated with sleep parameters (two exceptions exist: steps taken in the morning were negatively correlated with periodic leg movements during sleep, and physical activity in the evening was negatively correlated with total sleep time). The physical activity levels of the participants in this study, however, were unexpectedly high compared to population-level data and variance in physical activity was low. The average activity was 13,817 (SD = 4086) steps and 347 (SD = 117) minutes of moderate physical activity per day in females, and 10,636 (SD = 3748) steps and 269 (SD = 69) minutes of moderate physical activity in males, respectively. Participants did not engage in any vigorous physical activity. CONCLUSIONS: Further interventional studies are needed to investigate the daily effects of different intensities of physical activity on RLS symptoms.


Assuntos
Exercício Físico , Síndrome das Pernas Inquietas , Distúrbios do Início e da Manutenção do Sono , Acelerometria , Adulto , Idoso , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Polissonografia , Síndrome das Pernas Inquietas/complicações , Distúrbios do Início e da Manutenção do Sono/etiologia
3.
BJOG ; 123(5): 821-9, 2016 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26113145

RESUMO

OBJECTIVE: To describe changes in pelvic organ support from mid pregnancy until 1 year postpartum among nulliparous pregnant women, and to examine whether delivery route affects changes in pelvic organ support. DESIGN: Prospective cohort study. SETTING: Akershus University Hospital in Norway. POPULATION: A cohort of 300 nulliparous pregnant women included at mid-pregnancy. METHODS: Pelvic organ support assessed at 21 and 37 weeks of gestation, and again at 6 weeks, 6 months, and 12 months postpartum, by the use of the Pelvic Organ Prolapse Quantification (POP-Q) system. Linear mixed model was used to assess longitudinal change in pelvic organ support. MAIN OUTCOME MEASURES: Prevalence of anatomic POP. Change in POP-Q variables over time and between delivery groups. RESULTS: The prevalence of anatomic POP ranged from 0 to 10%. Vaginal POP-Q points made a cranial shift from mid to late pregnancy, a caudal shift following delivery, and again a cranial shift after 6 weeks postpartum. Postpartum change was present following both vaginal and caesarean deliveries, but was more pronounced following vaginal delivery. The perineal body and genital hiatus became longer from mid to late pregnancy, and shortened after 6 weeks postpartum. At 12 months postpartum all POP-Q points, except cervix, had recovered to baseline in the vaginal delivery group. CONCLUSIONS: The prevalence of anatomic POP was low in this cohort. There was change in pelvic organ support both during pregnancy and following vaginal as well as caesarean delivery. The short-term ability to recover was good after the first pregnancy and delivery. TWEETABLE ABSTRACT: Pelvic organ support changes during pregnancy. A contribution to the risk of POP?


Assuntos
Diafragma da Pelve/fisiopatologia , Prolapso de Órgão Pélvico , Complicações na Gravidez , Adulto , Parto Obstétrico/efeitos adversos , Parto Obstétrico/métodos , Feminino , Humanos , Modelos Lineares , Estudos Longitudinais , Noruega , Prolapso de Órgão Pélvico/diagnóstico , Prolapso de Órgão Pélvico/epidemiologia , Prolapso de Órgão Pélvico/etiologia , Gravidez , Complicações na Gravidez/diagnóstico , Complicações na Gravidez/epidemiologia , Complicações na Gravidez/etiologia , Prevalência , Estudos Prospectivos , Transtornos Puerperais/diagnóstico , Transtornos Puerperais/epidemiologia , Transtornos Puerperais/etiologia , Fatores de Risco
4.
Fortschr Neurol Psychiatr ; 84(1): 28-33, 2016 Jan.
Artigo em Alemão | MEDLINE | ID: mdl-26878429

RESUMO

Physical inactivity is a major but modifiable risk factor for morbidity and mortality. Regular physical activity has preventive and therapeutic effects on numerous diseases including neurological disorders. Therefore, it is desirable that physicians motivate their patients to increase their physical and sports activities and that they help them to overcome barriers to exercising. The present study is a survey of neurologists who are members of the German Neurological Society with their own practices; they were asked whether they advised their patients on the benefits of physical activity. Details on physician counseling on physical activity were obtained, such as the frequency of counseling, the neurological disorders considered by the practitioners to be worth the effort of counseling, and the barriers to exercise on the part of patients. More than 80 % of the participants who responded to the survey stated that they frequently provide their patients with advice on the preventive and therapeutic aspects of physical activity. Almost all of them recommended endurance sports; this was followed by Far Eastern types of sport such as tai chi or yoga (70 % of all physicians who advice sports activities). The frequency of counseling about physical activity significantly correlated to the physician's own sports activity. Frequency of counseling was reduced if the physician assessed the patients to be incapable of adopting and maintaining a lifestyle of habitual physical activity. Lack of time as well as an insufficient reimbursement of the counseling, however, did not significantly influence the frequency of counseling. The physician's own sports activity matched that of individuals with similar social status. Thus, a selection bias does not seem to be of importance regarding the results of the survey. However, since only 169 of the 784 invited neurologists (21.6 %) responded to the questionnaire, the representativeness of the survey may be limited. Counseling about physical activity seems to be an essential part of consultations in neurological practices.


Assuntos
Aconselhamento/métodos , Exercício Físico , Esportes , Atitude do Pessoal de Saúde , Alemanha , Pesquisas sobre Atenção à Saúde , Humanos , Doenças do Sistema Nervoso/prevenção & controle , Neurologia , Comportamento Sedentário , Sociedades Médicas , Inquéritos e Questionários
5.
Nervenarzt ; 85(12): 1521-8, 2014 Dec.
Artigo em Alemão | MEDLINE | ID: mdl-25380564

RESUMO

BACKGROUND: Physical activity has beneficial effects on somatic and mental health factors; therefore, regular exercise has preventive and therapeutic capabilities to improve neurological and mental dysfunction. OBJECTIVES: In this overview of the current literature, the evidence of the effects of exercise on such disorders is summarized. Physical exercise interventions for stroke, Parkinson's disease, dementia, depression, psychoses, anxiety disorders, and chronic pain syndromes are considered in detail. RESULTS: Physical activity reduces the risk of suffering from stroke, dementia and Parkinson's disease. Furthermore, it is negatively correlated with dysthymia and other depressive symptoms and various anxiety and pain disorders as well as headache syndromes. A therapeutic effect of systematic physical exercise was revealed for depression, some symptoms of psychosis and multiple sclerosis, addiction, eating disorders, the fibromyalgia syndrome as well as short-term interventions for anxiety disorders. CONCLUSION: The concerted integration of physical exercise into prophylactic and therapeutic interventions can lower the burden of neurological and mental diseases; however, scientific evidence is still lacking concerning the optimal duration, type, and intensity as well as potential risks of physical exercise.


Assuntos
Terapia por Exercício/métodos , Transtornos Mentais/terapia , Doenças do Sistema Nervoso/terapia , Condicionamento Físico Humano/métodos , Comportamento de Redução do Risco , Medicina Baseada em Evidências , Humanos , Transtornos Mentais/diagnóstico , Doenças do Sistema Nervoso/diagnóstico , Resultado do Tratamento
8.
Diabetes ; 42(10): 1482-6, 1993 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-8375588

RESUMO

Twenty-seven patients with successful transplantation and a control group of 14 patients with early rejection of the pancreas graft but functioning kidney graft were examined in a prospective study for 3 yr. Before transplantation, all patients had long-standing type I diabetes with advanced secondary complications, including end-stage diabetic nephropathy. After transplantation in the patients of both groups, kidney function was almost normal. Mean HbA1 levels were normal in the group with pancreas graft survival. In the control group, HbA1 levels were, on average, 1.5% higher compared with the group with pancreas survival (P = 0.00005). After 3 yr, the patients with functioning pancreas graft showed fewer symptoms (mean difference 1.0 in a symptom score ranging from 0 to 16, P = 0.004) compared with the control group. No statistically significant difference between both groups concerning clinical signs of polyneuropathy could be observed. In the pancreas and kidney transplantation group, peroneal and median nerve conduction velocities increased 7.2 m/s (P < 0.01) and 3.5 m/s (P < 0.05), respectively, whereas no increase was registered in the control group. The change of median and sural sensory nerve conduction velocities, peroneal and median compound muscle action potentials, and sural and median sensory action potentials was insignificant. In conclusion, although the improvement of clinical symptoms and neurophysiological signs of polyneuropathy was modest in the pancreas and kidney transplantation group, our data suggest that successful pancreas transplantation is able not only to halt the progression of diabetic polyneuropathy but also to improve it to some extent even at a far advanced stage.


Assuntos
Neuropatias Diabéticas/epidemiologia , Transplante de Rim , Transplante de Pâncreas , Potenciais de Ação , Adulto , Diabetes Mellitus Tipo 1/sangue , Diabetes Mellitus Tipo 1/complicações , Diabetes Mellitus Tipo 1/cirurgia , Neuropatias Diabéticas/sangue , Neuropatias Diabéticas/fisiopatologia , Feminino , Hemoglobinas Glicadas/análise , Humanos , Incidência , Masculino , Condução Nervosa , Neurônios Aferentes/patologia , Neurônios Aferentes/fisiologia , Estudos Prospectivos , Fatores de Tempo
9.
Neurology ; 49(5): 1292-8, 1997 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-9371911

RESUMO

We investigated 14 patients with amyotrophic lateral sclerosis (ALS) by paired conditioning-test transcranial magnetic stimulation to test the hypothesis that the motor cortex is hyperexcitable in ALS. Intracortical (corticocortical) inhibition was significantly less in the ALS group than in an age-matched healthy control group (85.3 +/- 27.0% versus 45.2 +/- 15.5%, respectively; p < 0.0001). In contrast, intracortical facilitation, motor threshold, and cortical silent period duration in the ALS patients were not different from the control group. We suggest that the selective abnormality of intracortical inhibition is best compatible with an impaired function of inhibitory interneuronal circuits in the motor cortex that in turn renders the corticomotoneuron hyperexcitable.


Assuntos
Esclerose Lateral Amiotrófica/fisiopatologia , Potencial Evocado Motor , Córtex Motor/fisiopatologia , Inibição Neural , Idoso , Estimulação Elétrica , Eletromiografia , Potenciais Pós-Sinápticos Excitadores/fisiologia , Feminino , Humanos , Interneurônios/fisiologia , Masculino , Pessoa de Meia-Idade , Córtex Motor/citologia , Neurônios Motores/fisiologia , Estimulação Magnética Transcraniana
10.
Neurology ; 41(11): 1836-8, 1991 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-1944918

RESUMO

Anti-acetylcholine receptor (AChR) antibodies in myasthenia gravis (MG) can be quantitated using AChR extracted from the human rhabdomyosarcoma cell line TE671 (AChRTE671) as a practical alternative to AChR from human amputated limbs (AChRAMP). We compared the two antigen preparations using serum samples from different clinical groups of MG patients (n = 112) and various controls (n = 189). With two exceptions, both tests were positive or negative in the same patients. However, in the generalized MG group, the TE671 assay yielded significantly lower titers than the AChRAMP assay.


Assuntos
Autoanticorpos/análise , Miastenia Gravis/imunologia , Receptores Colinérgicos/imunologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Linhagem Celular , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
11.
Neurology ; 55(3): 383-8, 2000 Aug 08.
Artigo em Inglês | MEDLINE | ID: mdl-10932272

RESUMO

OBJECTIVE: To investigate anticipation in proximal myotonic myopathy (PROMM). BACKGROUND: PROMM is a recently described autosomal dominantly inherited disorder similar to but distinct from myotonic dystrophy (DM). DM belongs to the group of inherited disorders with anticipation caused by an unstable trinucleotide repeat expansion. In PROMM, no mutation has been identified, although PROMM has recently been mapped to a gene locus on chromosome 3q. METHODS: We investigated 10 German families with the PROMM phenotype and linkage to chromosome 3q. We based our analysis of anticipation on the age of disease onset. Anticipation was assumed if the offspring had first symptoms earlier in life than his or her affected parent. For statistical analysis Independence Estimating Equations (IEE) and a Monte-Carlo bootstrap were used. RESULTS: In 27 affected living parent-offspring pairs from these 10 families, the mean difference of disease onset was 18.8 years with either statistical analysis (p < 10-14 and p < 10-15). The mean disease onset interval in years was greater in father-offspring as compared to the mother-offspring pairs (p < 0.05; IEE). CONCLUSION: Our findings suggest the occurrence of anticipation in parent-offspring pairs from families with the PROMM phenotype and linkage to chromosome 3q. The different disease onset intervals in mother-offspring and father-offspring pairs could indicate a mild parent-of-origin effect. These observations are compatible with the suggestion that PROMM, like DM, may be a trinucleotide repeat associated disorder. In contrast to DM, anticipation in PROMM is milder, a congenital form does not seem to occur, and fertility does not appear to be affected.


Assuntos
Cromossomos Humanos Par 3 , Ligação Genética , Transtornos Miotônicos/genética , Adolescente , Adulto , Idade de Início , Saúde da Família , Feminino , Testes Genéticos , Alemanha/epidemiologia , Haplótipos , Humanos , Masculino , Método de Monte Carlo , Transtornos Miotônicos/diagnóstico , Transtornos Miotônicos/epidemiologia , Linhagem , Fenótipo , Valor Preditivo dos Testes , Prognóstico , Fatores de Risco
12.
Neurology ; 52(1): 170-1, 1999 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-9921867

RESUMO

We performed genetic linkage analysis in nine German proximal myotonic myopathy (PROMM) families using DNA-markers D3S1541 and D3S1589 from the region of the recently discovered gene locus of myotonic dystrophy type 2 (DM2) on chromosome 3q. Two-point analysis supplied an lod score of 5.9. We conclude that a gene causing PROMM is located on chromosome 3q. PROMM and DM2 may be allelic disorders or may be caused by closely linked genes.


Assuntos
Cromossomos Humanos Par 3 , Ligação Genética , Miotonia/genética , Mapeamento Cromossômico , Marcadores Genéticos , Humanos
13.
J Nucl Med ; 38(1): 39-43, 1997 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-8998147

RESUMO

UNLABELLED: This study evaluated the ability of dipyridamole PET myocardial perfusion imaging to detect coronary collaterals. A previous study showed an association between dipyridamole-induced coronary steal on PET imaging and the presence of coronary collaterals on angiography. METHODS: Dipyridamole PET myocardial perfusion imaging using 82Rb was performed in 45 patients who had recent coronary angiography. The stress/rest count ratio (rubidium activity with stress divided by activity at rest)-was used to express the change in regional tracer uptake with dipyridamole and was calculated manually and automatically. The accuracy of the stress/rest count ratio for detecting coronary collaterals was determined. RESULTS: A manual stress/rest count ratio < or = 0.80 identified coronary collaterals with 81% sensitivity, 92% specificity and 90% accuracy (p < 0.0001). An automated ratio < or = 0.80 had 90% sensitivity, 88% specificity and 90% accuracy (p < 0.0001). Vascular beds incorrectly identified by PET as having collaterals had an increased frequency of severe stenoses and abnormal wall motion. CONCLUSION: PET perfusion imaging using the stress/rest count ratio can serve as a unique imaging method to identify coronary collaterals noninvasively.


Assuntos
Circulação Colateral , Circulação Coronária , Vasos Coronários/diagnóstico por imagem , Dipiridamol , Radioisótopos de Rubídio , Tomografia Computadorizada de Emissão , Vasodilatadores , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Sensibilidade e Especificidade
14.
Chest ; 104(3): 946-7, 1993 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-8365316

RESUMO

Radionuclide ventriculography is an accepted method for diagnosing left ventricular aneurysms, but false-negative studies have been associated with a mural thrombus filling the left ventricular cavity. We describe a patient with a left ventricular aneurysm due to myocardial infarction whose aneurysm scintigraphically "disappeared" from serial radionuclide ventriculograms. This was documented echocardiographically and pathologically to be due to the formation of a large mural thrombus. Review of the literature suggests that radionuclide ventriculography and echocardiography may be complementary techniques in the diagnosis of left ventricular aneurysm. Echocardiography may remain diagnostic when a mural thrombus has caused the loss of the characteristic scintigraphic findings on radionuclide ventriculography.


Assuntos
Aneurisma Cardíaco/diagnóstico por imagem , Cardiopatias/diagnóstico por imagem , Ventriculografia com Radionuclídeos , Trombose/diagnóstico por imagem , Adulto , Ecocardiografia , Reações Falso-Negativas , Aneurisma Cardíaco/etiologia , Ventrículos do Coração , Humanos , Masculino , Infarto do Miocárdio/complicações , Trombose/etiologia
15.
J Neurol ; 231(5): 250-2, 1984.
Artigo em Inglês | MEDLINE | ID: mdl-6520616

RESUMO

Neurological complications resulting from pronounced cerebrovascular changes were observed in a 59-year-old female suffering from Grönblad-Strandberg syndrome. In addition to typical skin changes of the pseudoxanthoma elasticum and ocular alterations (exudative macular degeneration and angioid streaks) there were an unusual number of disturbed endocrinological functions. The ophthalmological findings revealed characteristic breaks in Bruch's membrane, proliferation of chorioidal vessels into the subretinal space, hyperplasia of retinal pigment epithelium and disciform macular degeneration. Postmortem examination of the brain showed multiple cerebral infarcts due to recurrent disturbances in cerebral blood supply and particularly pronounced changes in the elastica interna of many cerebral arteries. Although the observed neurological signs in our patient were not characteristic of Grönblad-Strandberg syndrome, the histopathological findings led to the assumption that the same basic mechanisms result in alterations of elastic fibres and collagen, mainly in the ocular-cerebral system.


Assuntos
Doenças do Sistema Nervoso/etiologia , Pseudoxantoma Elástico/complicações , Infarto Cerebral/etiologia , Doenças do Sistema Endócrino/etiologia , Oftalmopatias/etiologia , Feminino , Humanos , Pessoa de Meia-Idade , Pseudoxantoma Elástico/patologia
16.
J Neurol ; 243(8): 579-84, 1996 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-8865024

RESUMO

Widespread fasciculations are an important clinical sign in, for example, degenerative lower motor neuron diseases (LMND). Usually they are detected by clinical inspection and electromyography. Recently myosonography has been proposed for the detection of fasciculations. This prospective study compares the value of these three modes of examination in patients with degenerative LMND. Seventy healthy control persons and 34 patients (11 women, 23 men; aged 43-78 years; median age 60.5) with LMND were included in the study. All participants were subjected to thorough visual screening for the presence of fasciculations. Fourteen muscles were examined bilaterally by myosonography and a median of 8 muscles were screened electromyographically (only in the patients); the investigators were blinded to the other findings. Clinical inspection and ultrasonography exhibited fasciculations in up to 5 and 8 muscles, respectively, in 8 healthy persons. Ultrasonography demonstrated fasciculations in all patients, clinical inspection in all but 2, and electromyography in 26 of 33 patients (1 patient was not examined electromyographically). Comparing the three methods, clinical observation revealed fasciculations in 42%, electromyography in 39%, and ultrasonography in 67% of all muscles. Thus, ultrasonography was significantly more sensitive than the other techniques (P < 0.001). The interrater agreement (correlation coefficient) r in respect of the presence or absence of fasciculation was 0.71 for the clinical, 0.85 for the electromyographic and 0.84 for the myosonographic examinations. Ultrasonography and electromyography were more reliable than the clinical examination (P < 0.001 and P < 0.01, respectively). Our study indicates that ultrasonography is more sensitive than clinical and electromyographic examination in visualizing fasciculations in patients with LMND. Additionally, it is more reliable than clinical examination.


Assuntos
Eletromiografia , Fasciculação/diagnóstico , Fasciculação/fisiopatologia , Ultrassonografia , Adulto , Idoso , Fasciculação/etiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Doença dos Neurônios Motores/complicações , Músculos/diagnóstico por imagem , Músculos/fisiopatologia , Variações Dependentes do Observador , Sensibilidade e Especificidade
17.
J Neurol ; 246 Suppl 3: III22-6, 1999 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-10631657

RESUMO

Intracortical excitability in amyotrophic lateral sclerosis (ALS) is impaired. The effectiveness of the glutamate antagonist riluzole (Rilutek, Rhône-Poulenc Rorer) in ALS has been shown in clinical studies. In healthy subjects it modifies intracortical excitability in a frequently used double-stimulus paradigm of transcranial magnetic stimulation (TMS). Under riluzole intracortical inhibition is enhanced in healthy individuals, although not always significantly, whereas intracortical facilitation has been described as reduced [10, 11]. We wanted to find out whether riluzole affects and potentially rebalances impaired intracortical excitability in ALS. We, therefore, enrolled 13 patients with clinically and electromyographically confirmed ALS into this study. Five patients had to be excluded because motor thresholds were too high to get reliable motor evoked potentials (MEPs). In the remaining 8 patients, mean age was 59.9 +/- 11.9 years (+/- standard deviation) and mean symptom duration 9.6 +/- 2.5 months. Intracortical excitability was assessed before and 1.5 hours after the first intake of a loading dose of 100 mg of riluzole using a conventional paired-pulse TMS paradigm with interstimulus intervals (ISI) ranging from 1-30 ms and intensities adjusted to yield MEPs of 1.0 mV for test pulses and of 90% active motor threshold for conditioning pulses. Patients' baseline results were compared to those of 9 age-matched, healthy control subjects. Before drug intake, motor thresholds did not differ between groups, but there was significantly less intracortical inhibition in the ALS patient group. Riluzole intake did not significantly alter motor thresholds or intracortical excitability in the ALS patients. We conclude that riluzole does not immediately influence intracortical excitability in ALS. Our results are in contrast to the findings of Stefan et al (1998) [14] where a partial normalization of intracortical inhibition in ALS was observed after at least 5 days of drug intake. The difference between that study and our result may indicate a delayed onset of riluzole's influence on intracortical excitability.


Assuntos
Esclerose Lateral Amiotrófica/tratamento farmacológico , Esclerose Lateral Amiotrófica/fisiopatologia , Antagonistas de Aminoácidos Excitatórios/uso terapêutico , Córtex Motor/fisiopatologia , Movimento/efeitos dos fármacos , Riluzol/uso terapêutico , Idoso , Limiar Diferencial/efeitos dos fármacos , Antagonistas de Aminoácidos Excitatórios/efeitos adversos , Feminino , Humanos , Magnetismo , Masculino , Pessoa de Meia-Idade , Córtex Motor/efeitos dos fármacos , Inibição Neural/efeitos dos fármacos , Estimulação Física , Riluzol/efeitos adversos
18.
J Neurol ; 241(5): 306-14, 1994 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-8006684

RESUMO

The purpose of the study was to describe typical MRI findings in various types of idiopathic inflammatory myopathies in adulthood and to correlate the MRI with histopathological and electromyographic findings, and the serum creatine kinase (CK) activity. A third goal was to assess the diagnostic value of the use of gadolinium-DTPA (Gd-DTPA). Fifty-eight patients (35 women, 23 men), aged 21-83 years (median age 59 years), suffering from idiopathic myositides (13 with acute and 45 chronic diseases; 25 with polymyositis, 14 with dermatomyositis, 8 with granulomatous and 11 with inclusion body myositides) were examined with MRI. Seventeen of them received an intravenous infusion of Gd-DTPA. Histopathological and MRI findings of 21 muscles of 18 patients were compared. MRI of skeletal muscles showed abnormal signal intensities in 56 (96.6%) of the 58 patients. MRI abnormalities were found more often than elevated CK activity (P < 0.001). The hyperintensity of T2-weighted images was more conspicuous than on T1-weighted images in 26 (44.8%) patients, indicating oedema-like abnormalities. MRI of 50 (86.2%) patients showed fat replacement. In acute myositides, oedema-like abnormalities were more often visible and in muscle lipomatosis less often visible than in chronic diseases (P < 0.05 each). In dermatomyositis oedema-like abnormalities were more and lipomatosis less frequent than in the other types of myositis (P < 0.005) and correlated with the acuteness of the disease.(ABSTRACT TRUNCATED AT 250 WORDS)


Assuntos
Imageamento por Ressonância Magnética , Músculos/patologia , Miosite/diagnóstico , Adulto , Idoso , Idoso de 80 Anos ou mais , Creatina Quinase/sangue , Dermatomiosite/diagnóstico , Edema/patologia , Eletromiografia , Feminino , Gadolínio DTPA , Granuloma/diagnóstico , Humanos , Corpos de Inclusão/ultraestrutura , Lipomatose/diagnóstico , Masculino , Pessoa de Meia-Idade , Compostos Organometálicos , Ácido Pentético/análogos & derivados , Sensibilidade e Especificidade
19.
J Neurol ; 240(5): 278-83, 1993 May.
Artigo em Inglês | MEDLINE | ID: mdl-8326331

RESUMO

Myositis is a rare manifestation of Lyme disease of unknown pathogenesis. This study describes the course of disease in eight patients with Lyme disease, aged 37-70 years, all of whom were suffering from histologically proven myositis. The clinical, electrophysiological, and myopathological findings are reported. One patient showed signs and symptoms of myositis of all limbs. In six patients myositis was localized in the vicinity of skin lesions, arthritis or neuropathy caused by Borrelia burgdorferi. In another patient suffering from pronounced muscle weakness of the legs and cardiac arrest, inflammation of the myocardium, the conducting system and skeletal muscles was revealed at autopsy. Muscle biopsy revealed lymphoplasmocellular infiltrates combined with few fibre degenerations in three patients. The lymphoplasmocellular infiltrates were found predominantly in the vicinity of small vessels. Several spirochetes were stained in six of seven muscle biopsy samples by means of the immunogold-silver technique. Culturing of B. Burgdorferi from the muscle biopsy samples was, however, unsuccessful. Antibiotic treatment succeeded in curing the myositis in four of six patients. In one patients signs and symptoms improved. One patient died from cardiac arrest caused by myocarditis and Guillain-Barré syndrome. The outcome is unknown in one patient. Clinical and myopathological findings indicate that Lyme myositis can be caused either by local spreading of B. burgdorferi or an unknown antigen or toxin from adjacent tissues or haematogenously.


Assuntos
Doença de Lyme/complicações , Miosite/etiologia , Adulto , Idoso , Grupo Borrelia Burgdorferi/isolamento & purificação , Cefotaxima/uso terapêutico , Ceftriaxona/uso terapêutico , Creatina Quinase/sangue , Doxiciclina/uso terapêutico , Quimioterapia Combinada/uso terapêutico , Feminino , Parada Cardíaca/etiologia , Humanos , Testes Imunológicos , Isoenzimas , Doença de Lyme/diagnóstico , Doença de Lyme/tratamento farmacológico , Doença de Lyme/patologia , Masculino , Pessoa de Meia-Idade , Músculos/química , Músculos/microbiologia , Músculos/patologia , Miosite/tratamento farmacológico , Miosite/patologia , Penicilina G/uso terapêutico , Resultado do Tratamento
20.
Heart ; 79(6): 619-21, 1998 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10078095

RESUMO

Proximal myotonic myopathy (PROMM) is a recently described autosomal dominantly inherited disorder resulting in proximal muscles weakness, myotonia, and cataracts. A few patients with cardiac involvement (sinus bradycardia, supraventricular bigeminy, conduction abnormalities) have been reported. The cases of three relatives with PROMM (weakness of neck flexors and proximal extremity muscles, calf hypertrophy, myotonia, cataracts) are reported: a 54 year old man, his 73 year old mother, and 66 year old aunt. All three presented with conduction abnormalities and one had repeated, life threatening, sustained monomorphic ventricular tachycardia. This illustrates that severe cardiac involvement may occur in PROMM.


Assuntos
Cardiomiopatias/genética , Catarata/genética , Miotonia/genética , Taquicardia Ventricular/genética , Idoso , Antiarrítmicos/efeitos adversos , Cardiomiopatias/patologia , Catarata/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Miocárdio/patologia , Miotonia/patologia , Síndrome , Taquicardia Ventricular/patologia
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA