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1.
Neurology ; 69(10): 959-68, 2007 Sep 04.
Artigo em Inglês | MEDLINE | ID: mdl-17785664

RESUMO

BACKGROUND: A bidirectional relationship between migraine and depression suggests a neurobiological link. Adverse experiences, particularly childhood maltreatment, may alter neurobiological systems, and predispose to a multiplicity of adult chronic disorders. Our objective is to determine, within a headache clinic population of women, if depression moderates the abuse-migraine relationship. METHODS: At six headache specialty clinics, women with migraine were diagnosed using ICHD-II criteria, and frequency was recorded. A questionnaire regarding maltreatment history, headache characteristics, current depression, and somatic symptoms was completed. RESULTS: A total of 949 women with migraine completed the survey: 40% had chronic headache (> or =15 headache days/month) and 72% had "very severe" headache-related disability. Major depression was recorded in 18%. Physical or sexual abuse was reported in 38%, and 12% reported both physical and sexual abuse in the past. Migraineurs with current major depression reported physical (p < 0.001) and sexual (p < 0.001) abuse in higher frequencies compared to those without depression. Women with major depression were more likely to report sexual abuse occurring before age 12 years (OR = 2.30, 95% CI: 1.14 to 4.77), and the relationship was stronger when abuse occurred both before and after age 12 years (OR = 5.08, 95% CI: 2.15 to 11.99). Women with major depression were also twice as likely to report multiple types of maltreatment (OR = 2.07, 95% CI: 1.27 to 3.35) compared to those without depression. CONCLUSIONS: Childhood maltreatment was more common in women with migraine and concomitant major depression than in those with migraine alone. The association of childhood sexual abuse with migraine and depression is amplified if abuse also occurs at a later age.


Assuntos
Maus-Tratos Infantis/psicologia , Transtorno Depressivo/epidemiologia , Transtorno Depressivo/psicologia , Transtornos de Enxaqueca/epidemiologia , Transtornos de Enxaqueca/psicologia , Adolescente , Adulto , Criança , Comorbidade , Estudos Transversais , Transtorno Depressivo/etiologia , Feminino , Humanos , Pessoa de Meia-Idade , Transtornos de Enxaqueca/etiologia
2.
Neurology ; 68(2): 134-40, 2007 Jan 09.
Artigo em Inglês | MEDLINE | ID: mdl-17210894

RESUMO

OBJECTIVE: To better define, in women with headache, the relationship of depression and somatic symptoms to headache, characterized by diagnoses, frequency, and disability. METHODS: At six headache specialty clinics, women with headache were classified using ICHD-II criteria, and frequency was recorded. A questionnaire addressing demographics, age at onset of headache, headache-related disability, somatic symptom, and depression severity was completed. Logistic regression was performed to measure the associations of headache frequency and headache-related disability with somatic symptom and depression severity. RESULTS: A total of 1,032 women with headache completed the survey, 593 with episodic (96% with migraine) and 439 with chronic headache (87% with migraine). Low education and household income was more common in chronic headache sufferers and in persons with severe headache disability. Somatic symptom prevalence and severity was greater in persons with chronic headache and with severe headache-related disability. Significant correlation was observed between PHQ-9 and PHQ-15 scores (r = 0.62). Chronic headache, severe disability, and high somatic symptom severity were associated with major depressive disorder (OR = 25.1, 95% CI: 10.9 to 57.9), and this relationship was stronger in the subgroup with a diagnosis of migraine (OR = 31.8, 95% CI: 12.9 to 78.5). CONCLUSIONS: High somatic symptom severity is prevalent in women with chronic and severely disabling headaches. Synergistic relationship to major depression exists for high somatic symptom severity, chronic headache, and disabling headache, suggesting a psychobiological underpinning of these associations.


Assuntos
Atividades Cotidianas , Depressão/epidemiologia , Avaliação da Deficiência , Transtornos da Cefaleia/epidemiologia , Medição de Risco/métodos , Distúrbios Somatossensoriais/epidemiologia , Distribuição por Idade , Comorbidade , Escolaridade , Emprego , Feminino , Humanos , Prevalência , Fatores de Risco , Inquéritos e Questionários , Estados Unidos/epidemiologia
3.
Neurology ; 67(1): 146-9, 2006 Jul 11.
Artigo em Inglês | MEDLINE | ID: mdl-16832096

RESUMO

A 67-year-old man sequentially developed anti-Ma2-associated paraneoplastic encephalitis (PNE) and contralateral herpes simplex encephalitis (HSE). Brain biopsy 1 month before HSE revealed extensive infiltrates of T cells, B cells, and plasma cells. Most T cells expressed the cytotoxic granule-associated protein TIA-1 and the membranolytic protein granzyme-B. Although recovery was thought to be unlikely, treatment of the PNE with corticosteroids and resection of the associated lung cancer resulted in dramatic improvement for 21 months.


Assuntos
Antígenos de Neoplasias/imunologia , Encefalite/imunologia , Encefalite/patologia , Proteínas do Tecido Nervoso/imunologia , Idoso , Anticorpos/sangue , Antígenos CD/metabolismo , Encéfalo/metabolismo , Encéfalo/patologia , Encefalite por Herpes Simples/imunologia , Encefalite por Herpes Simples/patologia , Seguimentos , Humanos , Imageamento por Ressonância Magnética/métodos , Masculino , Proteínas de Ligação a Poli(A)/metabolismo , Antígeno-1 Intracelular de Células T
5.
J Neurosurg ; 95(4): 704-9, 2001 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-11596967

RESUMO

Compressive optic neuropathy with acute or chronic vision loss has been associated with various skull base tumors, aneurysms, Graves disease, trauma, and, less commonly, fibrous dysplasia and osteopetrosis. The authors present a case of acute visual deterioration in a 25-year-old woman who had massive calvarial hypertrophy with optic canal stenosis secondary to renal osteodystrophy (uremic leontiasis ossea [ULO]: bighead disease). Significant visual field restoration was achieved with high-dose corticosteroids followed by optic nerve decompression. This is the first case report of cranial neuropathy associated with ULO.


Assuntos
Distúrbio Mineral e Ósseo na Doença Renal Crônica/complicações , Doenças do Nervo Óptico/etiologia , Crânio/patologia , Adulto , Distúrbio Mineral e Ósseo na Doença Renal Crônica/diagnóstico , Distúrbio Mineral e Ósseo na Doença Renal Crônica/diagnóstico por imagem , Distúrbio Mineral e Ósseo na Doença Renal Crônica/tratamento farmacológico , Descompressão Cirúrgica , Feminino , Seguimentos , Glucocorticoides/uso terapêutico , Humanos , Imageamento por Ressonância Magnética , Metilprednisolona/uso terapêutico , Doenças do Nervo Óptico/fisiopatologia , Doenças do Nervo Óptico/cirurgia , Escotoma/etiologia , Escotoma/fisiopatologia , Crânio/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Campos Visuais
6.
Artigo em Inglês | MEDLINE | ID: mdl-11513104

RESUMO

OBJECTIVE: To review the clinical, psychometric, laboratory, and radiologic findings of 6 patients with Sneddon's syndrome (SS) who presented with cognitive dysfunction rather than stroke. DESIGN AND METHODS: Case series. All patients fulfilled were diagnosed as SS based on the co-occurrence of livedo racemosa and neurologic disease. Patients presenting with clinical stroke were excluded. RESULTS: Patients presented with cognitive complaints at an early age and all noted skin lesions from 6 months to 10 years before onset of cognitive symptoms. Associated systemic disorders included hypertension and seizures. Laboratory evidence of a hypercoagulable condition was identified in 4 of 6 cases. Brain MRI scans demonstrated atrophy, especially in parieto-occipital regions and cerebral blood flow on brain SPECT scan was reduced in a similar distribution. CONCLUSION: Patients with SS can develop dementia without antecedent clinical stroke. While the specific pathogenic mechanism of dementia in SS remains speculative, the disease predominantly injures brain tissue in vascular "watershed" territories.


Assuntos
Transtornos Cognitivos/etiologia , Síndrome de Sneddon/diagnóstico , Adulto , Atrofia/complicações , Atrofia/patologia , Encéfalo/irrigação sanguínea , Encéfalo/patologia , Circulação Cerebrovascular/fisiologia , Transtornos Cognitivos/diagnóstico , Feminino , Humanos , Imageamento por Ressonância Magnética , Masculino , Testes Neuropsicológicos , Transtornos da Pigmentação/diagnóstico , Transtornos da Pigmentação/epidemiologia , Índice de Gravidade de Doença , Dermatopatias/diagnóstico , Dermatopatias/epidemiologia , Tomografia Computadorizada de Emissão de Fóton Único
7.
Am J Ophthalmol ; 130(3): 361-2, 2000 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-11020421

RESUMO

PURPOSE: To report the onset and progression of retinal nerve fiber layer myelination in an adolescent patient. METHODS: Case report. RESULTS: A 7-year-old male was found to have myelination of the retinal nerve fiber layer in the left eye. When he was reexamined at age 14 years, he was found to have new myelination in the right eye, progression of the myelination in the left eye, and bilateral optic nerve drusen. CONCLUSION: Retinal nerve fiber layer myelination can occur spontaneously in adolescence, progress in adolescence, and be associated with optic nerve drusen.


Assuntos
Bainha de Mielina/patologia , Fibras Nervosas/patologia , Drusas do Disco Óptico/diagnóstico , Nervo Óptico/patologia , Doenças Retinianas/diagnóstico , Criança , Progressão da Doença , Humanos , Masculino
8.
J Neuroophthalmol ; 20(2): 116-8, 2000 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10870926

RESUMO

Creutzfeldt-Jakob disease (CJD) is a neurodegenerative disease characterized by movement abnormalities and dementia that inevitably progress to death. Familial, infectious, and sporadic forms of the disease are recognized. The worldwide incidence of CJD is estimated at 1:1,000,000 per year, and it affects middle-aged men and women in roughly equal proportions. The disease is caused by a unique infectious vector, the prion, which is a mutant form of a normally occurring cell surface protein found predominantly in the central nervous system. A significant proportion of patients with CJD will have visual disturbances at some point in their illness and may therefore consult a neuro-ophthalmologist. The case of a woman in whom the diagnosis of CJD was not known until autopsy is reported. Early in the course of her disease, she sought ophthalmic consultation because of vision problems.


Assuntos
Síndrome de Creutzfeldt-Jakob/diagnóstico , Eletrorretinografia , Doenças Retinianas/diagnóstico , Transtornos da Visão/diagnóstico , Adulto , Encéfalo/patologia , Química Encefálica , Síndrome de Creutzfeldt-Jakob/fisiopatologia , Feminino , Humanos , Imageamento por Ressonância Magnética , Príons/análise , Retina/fisiopatologia , Doenças Retinianas/fisiopatologia , Transtornos da Visão/fisiopatologia
9.
Neurology ; 54(2): 319-24, 2000 Jan 25.
Artigo em Inglês | MEDLINE | ID: mdl-10668690

RESUMO

OBJECTIVE: To explore the incidence of depression and anxiety and to measure quality of life in women with idiopathic intracranial hypertension (IIH), a matched group cross-sectional study was conducted. Women with IIH (n = 28) were compared with control groups of weight- and age-matched women not diagnosed with IIH (n = 30) and with age-matched women of normal weight (n = 30). METHODS: Eighty-eight women completed a questionnaire soliciting health information and standardized questionnaires measuring depression, anxiety, and quality of life. The groups were compared using analysis of variance and chi2 tests. Where appropriate, post hoc comparisons were made using Fisher's test. RESULTS: Patients with IIH reported a greater number of adverse health problems than either of the control groups. Non-health-related psychosocial concerns were equally prevalent among the three groups, but IIH patients were significantly more affected by hardships associated with health problems than the other two groups. The patient group also had higher levels of depression and anxiety than the control groups. These adverse health conditions were reflected in decreased quality of life measures for the IIH patients. CONCLUSIONS: This study supports previous reports that link obesity and psychosocial difficulties, but obesity alone is not the explanation for the higher levels of depression and lower levels of quality of life.


Assuntos
Ansiedade/psicologia , Depressão/psicologia , Hipertensão Intracraniana/psicologia , Qualidade de Vida , Adaptação Psicológica , Adulto , Ansiedade/epidemiologia , Índice de Massa Corporal , Depressão/epidemiologia , Feminino , Cefaleia/fisiopatologia , Cefaleia/psicologia , Comportamentos Relacionados com a Saúde , Inquéritos Epidemiológicos , Humanos , Incidência , Hipertensão Intracraniana/epidemiologia , Hipertensão Intracraniana/etiologia , Obesidade/fisiopatologia , Obesidade/psicologia , Papiledema/fisiopatologia , Papiledema/psicologia , Pseudotumor Cerebral/fisiopatologia , Pseudotumor Cerebral/psicologia , Baixa Visão/fisiopatologia , Baixa Visão/psicologia
10.
Ophthalmic Plast Reconstr Surg ; 15(6): 384-9, 1999 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-10588244

RESUMO

PURPOSE: The purpose of this study is to test the hypothesis that the photophobia of benign essential blepharospasm (BEB) is caused by sympathetically maintained pain. METHODS: Nineteen patients with photophobia and BEB were enrolled in an unblinded prospective treatment trial. The intervention was blockade of the superior sympathetic ganglion with local anesthetic. Outcome measures included the patient's subjective report of ocular surface dryness, foreign body sensation, and eyelid spasm. We also obtained video recordings of eyelid movements. RESULTS: Of the 19 patients, 13 reported subjective improvement in BEB symptoms after cervical sympathetic blockade (CSB). Thirteen of 19 patients also had objective evidence of decreased light-induced eyelid spasm after CSB. Ocular surface disease was present in 18 of 19 patients. CONCLUSION: These data support the hypothesis that in many patients with BEB there is a sympathetically maintained pain syndrome associated with external ocular disease. We speculate on a neurologic circuit that may explain these findings.


Assuntos
Doenças do Sistema Nervoso Autônomo/complicações , Blefarospasmo/etiologia , Pálpebras/inervação , Anestésicos Locais/administração & dosagem , Bloqueio Nervoso Autônomo , Doenças do Sistema Nervoso Autônomo/fisiopatologia , Blefarospasmo/fisiopatologia , Pálpebras/fisiopatologia , Humanos , Injeções , Lidocaína/administração & dosagem , Dor/complicações , Dor/fisiopatologia , Fotofobia/etiologia , Fotofobia/fisiopatologia , Estudos Prospectivos , Gânglio Cervical Superior/efeitos dos fármacos
11.
Neurosurg Clin N Am ; 10(4): 587-608, 1999 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-10529972

RESUMO

1. Ophthalmic signs are important for the diagnosis and management of elevated intracranial pressure. 2. Visual loss, visual field loss, dorsal midbrain syndrome, and acute papilledema may occur well in advance of ventricular dilation. 3. For younger patients with hydrocephalus, amblyopia should be checked for, and the absence of papilledema does not ensure normal intracranial pressure. 4. Treatment should be delivered to control intracranial pressure and preserve vision in a timely fashion.


Assuntos
Derivações do Líquido Cefalorraquidiano/efeitos adversos , Hidrocefalia/complicações , Pressão Intracraniana , Transtornos da Visão/etiologia , Humanos , Hidrocefalia/fisiopatologia , Falha de Tratamento , Transtornos da Visão/fisiopatologia , Vias Visuais/fisiopatologia
12.
Neurology ; 53(5): 1114-8, 1999 Sep 22.
Artigo em Inglês | MEDLINE | ID: mdl-10496276

RESUMO

OBJECTIVE: The primary purpose was to investigate whether serum vitamin A concentration is associated with idiopathic intracranial hypertension (IIH). The secondary aim was to obtain pilot data regarding the amount of vitamin A ingested by patients and controls. BACKGROUND: Vitamin A is an attractive candidate mediator of IIH as many of the symptoms and signs of hypervitaminosis A mimic those of IIH. METHODS: We prospectively determined serum retinol and retinyl ester concentration in 16 women with IIH and 70 healthy young women. Using a survey instrument, we also determined the average daily vitamin A ingestion in a convenience sample of patients and controls. RESULTS: Serum retinol concentration was significantly higher in the patient group (median 752 ug/L) compared with the control group (median 530 ug/L), even after adjusting for age and body mass index (p < 0.001). Retinyl ester concentration, however, was similar in the patient (median 48 ug/L) and control (median 41 ug/L) groups (p = 0.32). There was no significant correlation between serum retinol concentration and body mass index in the patients (r = 0.16) or controls (r = -0.02). Finally, there was no significant difference in the amounts of vitamin A ingested by the patients or controls, although the small number of subjects in both groups reduced the power of this conclusion. CONCLUSIONS: Elevated serum retinol concentration is associated with IIH. Obesity, by itself, does not explain these higher levels. Patients may ingest an abnormally large amount of vitamin A, metabolize it abnormally, or be unusually sensitive to its effects. Alternatively, elevated level of serum retinol may reflect an epiphenomenon of another variable we did not measure or a nonspecific effect of elevated retinol binding capacity.


Assuntos
Hipertensão Intracraniana/sangue , Vitamina A/sangue , Adolescente , Adulto , Cromatografia Líquida de Alta Pressão , Feminino , Humanos , Pessoa de Meia-Idade , Estudos Prospectivos
13.
J Neuroophthalmol ; 19(1): 34-8, 1999 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-10098546

RESUMO

Nystagmus seen only with convergence is unusual. We describe four cases of acquired convergence-evoked pendular nystagmus in patients with multiple sclerosis. The nystagmus was horizontal and asymmetric in all patients. Eye movement recordings in one subject showed a conjugate rather than a convergent-divergent relationship of the phase of movement between the two eyes. All patients had evidence of optic neuropathy and cerebellar dysfunction. Occlusion of either eye during fixation of near targets led to divergent drift of the covered eye and a decrease in nystagmus. Intravenous scopolamine reduced nystagmus in one patient. Base-in prisms alleviated symptoms of oscillopsia at near and improving reading visual acuity. Convergence-evoked pendular nystagmus may be more common than currently appreciated, particularly among patients with multiple sclerosis.


Assuntos
Convergência Ocular , Esclerose Múltipla/complicações , Nistagmo Patológico/etiologia , Adulto , Encéfalo/patologia , Doenças Cerebelares/complicações , Doenças Cerebelares/diagnóstico , Eletroculografia , Feminino , Humanos , Infusões Intravenosas , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Nistagmo Patológico/tratamento farmacológico , Nistagmo Patológico/fisiopatologia , Doenças do Nervo Óptico/complicações , Doenças do Nervo Óptico/diagnóstico , Escopolamina/uso terapêutico , Acuidade Visual
14.
Am J Ophthalmol ; 126(1): 116-21, 1998 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-9683157

RESUMO

PURPOSE: To demonstrate the association between minocycline treatment and development of the pseudotumor cerebri syndrome. METHODS: A retrospective study was conducted of 12 patients from five neuro-ophthalmic referral centers who developed pseudotumor cerebri syndrome after being treated with standard doses of minocycline for refractory acne vulgaris. The main outcome measures included resolution of headaches, transient visual obscurations, diplopia, papilledema, and visual fields static thresholds after withdrawal of minocycline and treatment for increased intracranial pressure. RESULTS: Nine (75%) of the 12 patients developed symptoms of the pseudotumor cerebri syndrome syndrome within 8 weeks of starting minocycline therapy; six were not obese. Two patients developed symptoms only after a year had elapsed because of commencement of treatment with minocycline. One patient was asymptomatic, and pseudotumor cerebri syndrome was diagnosed by finding papilledema on routine examination 1 year after minocycline was started. None of the patients developed recurrences for at least 1 year after the discontinuation of minocycline and treatment for increased intracranial pressure, but three (25%) of the 12 patients had substantial residual visual field loss. CONCLUSION: Minocycline is a cause or precipitating factor in pseudotumor cerebri syndrome. Although most patients have prominent symptoms and are diagnosed promptly, others are asymptomatic and may have optic disk edema for a long period of time before diagnosis. Withdrawal of minocycline and treatment for increased intracranial pressure lead to resolution of the pseudotumor cerebri syndrome, but visual field loss may persist.


Assuntos
Antibacterianos/efeitos adversos , Minociclina/efeitos adversos , Pseudotumor Cerebral/induzido quimicamente , Acne Vulgar/tratamento farmacológico , Adolescente , Adulto , Diplopia/induzido quimicamente , Feminino , Seguimentos , Cefaleia/induzido quimicamente , Humanos , Pressão Intracraniana , Papiledema/induzido quimicamente , Estudos Retrospectivos , Síndrome , Transtornos da Visão/induzido quimicamente , Acuidade Visual
16.
AJNR Am J Neuroradiol ; 19(4): 743-7, 1998 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-9576666

RESUMO

PURPOSE: Terson syndrome may be overlooked in the acute setting and often requires ophthalmologic intervention to prevent long-term visual loss. In this syndrome, vitreous or retinal hemorrhage results from an abrupt rise in intracranial pressure, leading to retinal venous hypertension and intraocular hemorrhage. Our objective was to determine whether imaging findings could be discovered that might facilitate an earlier diagnosis. METHODS: Our inpatient medical record data base for 1991-1996 listed 11 patients with Terson syndrome. The medical records of these 11 patients were reviewed retrospectively and compared with their noncontrast head CT scans and with scans of 10 control subjects. One additional case was discovered prospectively, for a total of 12 patients. Three radiologists unaware of the patients' history evaluated CT scans of the orbits for evidence of intraocular hemorrhage. RESULTS: CT findings in eight patients were suggestive of retinal hemorrhage manifested by a retinal crescent or nodule that was slightly hyperdense relative to the vitreous humor. There was a high degree of concordance between the retrospective and independent reviews. CONCLUSION: Retinal nodularity and crescentic hyperdensities are evident on CT scans in the majority of patients with Terson syndrome. Although findings are subtle and not present in all cases, in the setting of subarachnoid hemorrhage they suggest retinal hemorrhage and warrant detailed fundoscopic evaluation.


Assuntos
Hemorragia Retiniana/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Hemorragia Vítrea/diagnóstico por imagem , Adolescente , Adulto , Idoso , Reações Falso-Positivas , Humanos , Pessoa de Meia-Idade , Período Pós-Operatório , Hemorragia Retiniana/fisiopatologia , Hemorragia Retiniana/cirurgia , Estudos Retrospectivos , Resultado do Tratamento , Acuidade Visual/fisiologia , Vitrectomia , Hemorragia Vítrea/fisiopatologia , Hemorragia Vítrea/cirurgia
17.
Hum Mol Genet ; 7(3): 525-32, 1998 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-9467013

RESUMO

The gene for spinocerebellar ataxia 7 (SCA7) includes a transcribed, translated CAG tract that is expanded in SCA7 patients. We have determined expansions in 73 individuals from 17 SCA7 kindreds and compared them with repeat lengths of 180 unaffected individuals. Subjects with abnormal expansions comprise 59 clinically affected individuals and 14 at-risk currently unaffected individuals predicted to carry the mutation by haplotype analysis. For expanded alleles, CAG repeat length correlates with disease progression and severity and correlates inversely with age of onset. Increased repeat lengths are seen in generational transmission of the disease allele, consistent with the pattern of clinical anticipation seen in these kindreds. Repeat lengths in expanded alleles show somatic mosaicism in leukocyte DNA, suggesting that these alleles are unstable within individuals as well as between generations. Although dynamic repeat expansions from paternal transmissions are greater than those from maternal transmissions, maternal transmission of disease is more common, suggesting germline or embryonic effects of the repeat expansion.


Assuntos
Impressão Genômica , Proteínas do Tecido Nervoso/genética , Degenerações Espinocerebelares/genética , Repetições de Trinucleotídeos , Adolescente , Adulto , Idade de Início , Alelos , Análise de Variância , Ataxina-7 , Sequência de Bases , Criança , Pré-Escolar , Primers do DNA , Progressão da Doença , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Proteínas do Tecido Nervoso/biossíntese , Linhagem , Reação em Cadeia da Polimerase , Biossíntese de Proteínas , Valores de Referência , Análise de Regressão , Degenerações Espinocerebelares/fisiopatologia , Transcrição Gênica
18.
Am J Ophthalmol ; 124(6): 843-4, 1997 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-9402834

RESUMO

PURPOSE: To report a case of retinopathy associated with chronic occupational exposure to ethyl-m-aminobenzoic acid methanesulfonate (MS-222), a retinotoxic fish anesthetic. METHOD: Case report with electroretinograms to document changes in visual electrophysiology. RESULTS: An ichthyologist with a long history of skin exposure to MS-222 was initially examined for decreased vision, photophobia, and photopsia. His electroretinogram abnormalities were similar to those seen in animal models of acute MS-222 toxicity. After terminating MS-222 contact for 7 months, his vision returned to normal, and his electroretinogram improved. CONCLUSION: Individuals with occupational exposure to MS-222 should exercise caution to avoid systemic absorption of this retinotoxic compound.


Assuntos
Aminobenzoatos/efeitos adversos , Anestésicos/efeitos adversos , Doenças Profissionais/induzido quimicamente , Exposição Ocupacional/efeitos adversos , Retina/efeitos dos fármacos , Doenças Retinianas/induzido quimicamente , Animais , Diagnóstico Diferencial , Eletrorretinografia , Peixes , Seguimentos , Humanos , Masculino , Pessoa de Meia-Idade , Doenças Profissionais/diagnóstico , Doenças Profissionais/fisiopatologia , Retina/patologia , Retina/fisiopatologia , Doenças Retinianas/diagnóstico , Doenças Retinianas/fisiopatologia , Acuidade Visual
19.
Arch Neurol ; 52(11): 1101-8, 1995 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-7487562

RESUMO

OBJECTIVES: To characterize the clinical, radiographic, and pathologic findings in thrombosis of the deep venous drainage of the brain. To highlight clinical and radiographic findings that may lead to the diagnosis of disease and distinguish it from dural sinus thrombosis. To review the published literature on this disorder. DESIGN: Retrospective review of the medical and radiographic records of seven patients from three institutions over the past 10 years. Review of the English language literature from 1971 to the present. RESULTS: All seven patients had risk factors for cerebral venous thrombosis. Five patients presented with a short, rapidly progressing course characterized by headache, nausea and vomiting, and decline in level of consciousness. All five patients died or were rendered severely disabled. Computed tomographic scans, magnetic resonance imaging, and magnetic resonance angiography showed findings associated with deep cerebral vein thrombosis in three of four, in five of five, and in three of three patients, respectively. Transfemoral catheter angiography was diagnostic in two of two patients. Twenty-one reported cases of deep cerebral venous thrombosis were identified in the literature. CONCLUSIONS: When the two populations are combined and compared with large series of patients with dural sinus thrombosis, patients with deep venous system thrombosis are more commonly women, tend to present with a more rapidly declining time course, altered consciousness, and long tract signs. Death or long-term sequelae are far more likely to occur in internal cerebral vein thrombosis than with dural sinus thrombosis. Unenhanced computed tomography can demonstrate findings that are strongly suggestive of the diagnosis. Magnetic resonance imaging and magnetic resonance angiography are confirmatory. Angiography may still be necessary when the diagnosis is not clear.


Assuntos
Veias Cerebrais/patologia , Trombose/patologia , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Dura-Máter/patologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade
20.
J Neuroophthalmol ; 15(2): 90-4, 1995 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-7550935

RESUMO

INTRODUCTION: The mechanism(s) underlying the eye pain syndrome characterized by photo-oculodynia and decreased tears (herein referred to as PODS) is unknown. Postulating a sympathetically maintained pain mechanism, cervical sympathetic ganglion blocks (CSB) were performed in an open-label trial in two patients as a pilot test of our hypothesis. Because these patients experienced clinically dramatic reductions in signs and symptoms, a double-masked controlled trial was initiated. METHODS: With Institutional Review Board approval and written informed consent, four other subjects with PODS who had experienced temporary reduction (> 50%) of symptoms with a single lidocaine CSB were enrolled. A randomized, double-masked series of three CSBs (saline, bupivacaine, lidocaine) was scheduled for each subject 2-7 days apart. RESULTS: CSB with lidocaine and bupivicaine, but not saline, reduced spontaneous pain and light sensitivity and increased production of tears. Symptom reduction lasted for hours to days, extending beyond clinical signs of local anesthetic-induced sympatholysis. It was also observed that sympatholysis extinguished associated blepharospasm in those subjects with this dystonic condition (one subject in the open-label pilot trial and two of three in the controlled trial). CONCLUSIONS: Results of these preliminary data suggest that the sympathetic nervous system is involved in mediating symptoms associated with PODS in certain individuals.


Assuntos
Blefarospasmo/terapia , Síndromes do Olho Seco/terapia , Luz/efeitos adversos , Manejo da Dor , Simpatectomia Química , Transtornos da Visão/terapia , Adulto , Idoso , Anestésicos Locais , Blefarospasmo/etiologia , Blefarospasmo/fisiopatologia , Bupivacaína , Método Duplo-Cego , Síndromes do Olho Seco/etiologia , Síndromes do Olho Seco/fisiopatologia , Feminino , Gânglios Simpáticos/fisiologia , Humanos , Pressão Intraocular , Lidocaína , Masculino , Pessoa de Meia-Idade , Dor/etiologia , Dor/fisiopatologia , Medição da Dor , Projetos Piloto , Sistema Nervoso Simpático/fisiologia , Síndrome , Transtornos da Visão/etiologia , Transtornos da Visão/fisiopatologia
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