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1.
Cancer Chemother Pharmacol ; 72(1): 65-73, 2013 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-23636449

RESUMO

PURPOSE: Whether an anticoagulant prophylaxis is needed for patients with cancer with a central venous catheter is a highly controversial subject. We designed a study to compare different prophylactic strategies over 3 months of treatment. METHODS: We performed a phase III prospective, open-label randomized trial. After the insertion of a central venous access device, consecutive patients with planned chemotherapy for cancer were randomized to no anticoagulant prophylaxis, low molecular weight heparin [low molecular weight heparin (LMWH); with isocoagulation doses], or warfarin 1 mg/day. Treatments were given over the first 3 months. Doppler ultrasound and venographies were performed on days 1 and 90, respectively, or sooner in case of clinical presumption of thrombosis. RESULTS: A total of 420 patients were randomized, and 407 were evaluable. Forty-two catheter-related deep vein thrombosis (DVT) occurred (10.3 %), 20 in those with no anticoagulation, 8 in those receiving warfarin, and 14 in those receiving LMWH. Nine additional non-related catheter deep vein thrombosis (CDVT) occurred. Anticoagulation significantly reduced the incidence of catheter-related DVT (p = 0.035) and catheter non-related DVT (p = 0.007), with no difference between warfarin and LMWH. Safety was good (3.4 % of attributable events) but compliance with randomized prophylaxis was lower than expected. CONCLUSIONS: Prophylaxis showed a benefit regarding catheter-related and non-catheter-related DVT with no increase in serious side effects.


Assuntos
Anticoagulantes/uso terapêutico , Antineoplásicos/administração & dosagem , Cateteres Venosos Centrais/efeitos adversos , Heparina de Baixo Peso Molecular/uso terapêutico , Neoplasias/tratamento farmacológico , Trombose Venosa Profunda de Membros Superiores/prevenção & controle , Varfarina/uso terapêutico , Adulto , Idoso , Idoso de 80 Anos ou mais , Anticoagulantes/administração & dosagem , Anticoagulantes/efeitos adversos , Antineoplásicos/efeitos adversos , Antineoplásicos/uso terapêutico , Feminino , França/epidemiologia , Heparina de Baixo Peso Molecular/efeitos adversos , Humanos , Incidência , Análise de Intenção de Tratamento , Perda de Seguimento , Masculino , Adesão à Medicação , Pessoa de Meia-Idade , Neoplasias/complicações , Índice de Gravidade de Doença , Trombose Venosa Profunda de Membros Superiores/epidemiologia , Trombose Venosa Profunda de Membros Superiores/etiologia , Trombose Venosa Profunda de Membros Superiores/fisiopatologia , Trombose Venosa/complicações , Trombose Venosa/epidemiologia , Trombose Venosa/fisiopatologia , Trombose Venosa/prevenção & controle , Varfarina/administração & dosagem , Varfarina/efeitos adversos , Adulto Jovem
2.
Eur J Vasc Endovasc Surg ; 44(2): 164-9, 2012 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-22705162

RESUMO

OBJECTIVES: Peripheral artery disease (PAD) is a common condition in Western countries, mostly in the elderly. Little is known about the epidemiology of PAD in Africa. We sought to determine the prevalence of this condition in the elderly in two community-dwelling cohorts in Central Africa. DESIGN: Prospective cross-sectional survey in general population over the age of 65 years in Bangui (Central African Republic) and Brazzaville (Congo). METHODS: We conducted a systematic door-to-door survey in two representative districts of each city. Demographic, clinical and biological data were collected. The ankle-brachial index (ABI) was used to detect PAD (ABI ≤ 0.90). RESULTS: Among the 976 participants, the prevalence of PAD was 15.0% in Bangui and 32.4% in Brazzaville, increasing with age. Adjusted to age, regular alcohol consumption was protective for women in Bangui (OR = 0.50, CI95%:0.25-0.98) and men in Brazzaville (OR = 0.43, CI95%:0.21-0.88). Hypertension was associated with PAD in women (OR = 4.14, CI95%:1.65-10.42 in Bangui and OR = 2.17, CI95%:1.16-4.06 in Brazzaville). Diabetes and smoking showed different associations according to gender and city. CONCLUSIONS: This first population study in Central Africa highlights the high prevalence of PAD in the older population, and emphasizes specificities regarding the risk factors, being different from data published in Western countries.


Assuntos
Doença Arterial Periférica/epidemiologia , Saúde da População Urbana/estatística & dados numéricos , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , Índice Tornozelo-Braço , População Negra/estatística & dados numéricos , República Centro-Africana/epidemiologia , Congo/epidemiologia , Estudos Transversais , Feminino , Humanos , Modelos Logísticos , Masculino , Análise Multivariada , Razão de Chances , Doença Arterial Periférica/diagnóstico , Doença Arterial Periférica/etnologia , Prevalência , Estudos Prospectivos , Medição de Risco , Fatores de Risco
3.
Mult Scler ; 16(8): 899-908, 2010 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-20463038

RESUMO

Few studies report a protective role of childhood solar exposure to multiple sclerosis. Our objective was to confirm the protective role of childhood solar exposure in multiple sclerosis in Cuba, Martinique and Sicily. This was a matched case- control study, and cases met Poser criteria for clinically, laboratory (definite, probable) multiple sclerosis. Controls were resident population, without neurological disorder, living close to cases (within 100 km), matched for sex, age (+/-5 years), residence before age 15. We recruited 551 subjects during a 1-year period (193 cases, Cuba n = 95, Sicily n = 50, Martinique n = 48; 358 controls). Some (89%) met definite clinical multiple sclerosis criteria (relapsing remitting form (with and without sequel) (74%), secondary progressive (21%), primary progressive (5%)). Odds ratios in a uni-variate analysis were: family history of multiple sclerosis (5.1) and autoimmune disorder (4.0); wearing shirt (3.5), hat (2.7), pants (2.4); sun exposure causing sunburn (1.8); sun exposure duration (1 h more/day; weekends 0.91, weekdays 0.86); bare-chested (0.6); water sports (0.2). Independent factors in the multivariate analysis were family history of multiple sclerosis (4.8 (1.50-15.10)), wearing pants under sunlight (1.9 (1.10-3.20)), sun exposure duration (1 h more/ day, weekdays 0.90 (0.85-0.98), weekends 0.93 (0.87-0.99)), water sports (0.23 (0.13-0.40)). We conclude that outdoor leisure activities in addition to sun exposure reports are associated with a reduced multiple sclerosis risk, with evidence of dose response.


Assuntos
Esclerose Múltipla/epidemiologia , Esclerose Múltipla/prevenção & controle , Luz Solar , Adolescente , Adulto , Idoso , Estudos de Casos e Controles , Cuba/epidemiologia , Feminino , Humanos , Masculino , Martinica/epidemiologia , Pessoa de Meia-Idade , Sicília/epidemiologia , Raios Ultravioleta , Adulto Jovem
4.
Med Trop (Mars) ; 69(5): 525-6, 2009 Oct.
Artigo em Francês | MEDLINE | ID: mdl-20025191

RESUMO

Africa is in the midst of an epidemiological transition characterized by an increase in degenerative illnesses, in particular cardiovascular disease, and a decrease in infectious illnesses. In this context it is of critical importance to develop simple and effective low-cost tools to identify subjects at high risk for cardiovascular events. Screening for subclavian artery stenosis (SAS) could provide a useful risk indicator. The prevalence of SAS in the general population over the age of 40 years in Gabon is 5.1 %, which is close to prevalence values observed in industrialized countries. Presence of SAS has been associated with hypertension (OR: 5.79, 95% CI: 2.21-15.2; p < 0.05) and male gender (OR 2.34, 95% CI: 1.13-4.83; p < 0.05). These data confirm the epidemiological shift towards cardiovascular diseases and suggest that screening for SAS could be useful to identify subjects at high risk for cardiovascular events who could benefit from preventive strategies.


Assuntos
Doenças Cardiovasculares/epidemiologia , Doenças Cardiovasculares/diagnóstico , Feminino , Gabão/epidemiologia , Humanos , Masculino , Programas de Rastreamento , Pessoa de Meia-Idade , Prevalência , Fatores de Risco
5.
Trop Med Int Health ; 12(7): 895-901, 2007 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-17596257

RESUMO

OBJECTIVE: To evaluate the benefits of the detection of both circulating antibodies (Ab) and antigens (Ag) for the diagnosis of cysticercosis in people with epilepsy. Neurocysticercosis is a cause of neurological diseases world-wide, especially epilepsy. The clinical symptoms of neurocysticercosis are non-specific and diagnosis is often difficult. METHODS: Serum samples were collected from subjects in a matched case-control study for epilepsy in the Kiremba area, Burundi, between March and April 2001 (epileptic cases=303; controls without epilepsy=606). The enzyme-linked immunosorbent assay (ELISA) was used for the detection of antibodies (Ab-ELISA) and circulating Ag (Ag-ELISA). RESULTS: The Ab-ELISA revealed 58.7% positivity in epilepsy cases and 31.4% in healthy controls; and Ag-ELISA revealed 38.3% positivity in epilepsy cases and 20.0% in controls. The matched odds ratios were 3.6 (95% CI: 2.5-4.9) for Ab-ELISA, and 2.9 (95% CI: 2.1-4.3) for Ag-ELISA. CONCLUSION: Both Ag- and Ab-ELISA detected a significantly higher number of seropositives among people with epilepsy than among controls. The risk of epilepsy was high in cases with a positive Ag-ELISA, although less important than in cases with positivity for Ab-ELISA. Dead or degenerating cysticerci appear to be more frequently associated with epilepsy than living cysts. The high number of people with circulating Ag of Taenia solium suggests that the study area is a focus of active transmission of the parasite.


Assuntos
Anticorpos Anti-Helmínticos/análise , Antígenos de Helmintos/análise , Ensaio de Imunoadsorção Enzimática/métodos , Epilepsia/complicações , Neurocisticercose/complicações , Adulto , Burundi/epidemiologia , Estudos de Casos e Controles , Epilepsia/epidemiologia , Feminino , Humanos , Masculino , Neurocisticercose/epidemiologia , Neurocisticercose/imunologia , Fatores de Risco , Distribuição por Sexo
7.
Neurophysiol Clin ; 35(1): 1-10, 2005 Feb.
Artigo em Francês | MEDLINE | ID: mdl-15808962

RESUMO

OBJECTIVES: This work aimed at describing EEG abnormalities in epileptic patients living in areas endemic for cysticercosis, underlining the electroclinical correlations and discussing the interest of EEG examination in this context. METHODS: During a case-control study, 250 EEGs from patients with epilepsy were recorded with a portable system. Types of seizures were assessed clinically and from information obtained through a standardised questionnaire, and along with EEG were related to the results of cysticercosis serological tests. RESULTS: Among the 249 EEGs, 48% were normal, 5.2% had epileptic abnormalities, 6.8% showed an association between epileptic abnormalities and slow alterations. Slow theta and delta abnormalities were found in 21.8% of cases, and isolated deterioration of basic rhythms was observed in 17.3% of cases. Most seizures were generalized, and 61% of the patients had positive serology. One EEG was uninterpretable and another showed isolated spikes. Electroclinical agreement was considered to be satisfactory in 33 patients, and was better with the epileptic than with slow abnormalities. The existence of epileptiform EEG abnormalities confirmed clinically diagnosed epilepsy, but did not allow etiological diagnosis. Electroserological agreement was good in 24 patients. A significant association (Chi2, p = 0.03) existed between slow focal abnormalities and positive cysticercosis serology. Conversely, no significant association was detected between epileptic patterns and serology results. CONCLUSION: While the EEG alone clearly does not allow aetiological diagnosis, its joint use with clinical and biological results was a key element of the etiological and therapeutic discussion. When it shows focal abnormalities in a patient with epilepsy living in a high prevalence cysticercosis area, it confirms the clinical suspicion of neurocysticercosis. Morphological imagery alone can provide etiological information on the seizures by showing the nature and localization of the parenchymal lesions.


Assuntos
Eletroencefalografia , Epilepsia/fisiopatologia , Neurocisticercose/fisiopatologia , Adulto , Burundi/epidemiologia , Estudos de Casos e Controles , Doenças Endêmicas , Epilepsia/complicações , Humanos , Neurocisticercose/sangue , Neurocisticercose/complicações , Neurocisticercose/epidemiologia , Testes Sorológicos , Inquéritos e Questionários
8.
Lung Cancer ; 47(3): 395-404, 2005 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-15713523

RESUMO

CONTEXT: The most satisfactory treatment for patients with locally advanced non-small-cell lung cancer (NSCLC) is combination chemotherapy-radiotherapy (CT-RT). The optimal treatment modalities remain to be determined. OBJECTIVE: We conducted a multicenter phase II trial of the docetaxel-radiotherapy combination after induction chemotherapy with cisplatin-vinorelbine. The main endpoint was the objective response rate. PATIENTS AND METHODS: Patient with inoperable stage locally advanced NSCLC received induction chemotherapy consisting of two cycles of cisplatin 100 mg/m2 on D1 and vinorelbine 25 mg/m2 on D1, D8, D15 and D22. Patients with responses or stable disease then received concurrent RT-CT consisting of 25 mg/m2/week docetaxel and single-fraction radiotherapy (66 grays (Gy) in 33 fractions) over 6.5 weeks. RESULTS: Fifty-six patients were enrolled from 1 July 2000 to 31 December 2001. Sixteen patients left the trial after induction chemotherapy, eight for progression, five for toxicity, and two for intercurrent events. One patient underwent surgery after induction chemotherapy. In total, 40 of the 56 patients received RT-CT. Twelve (30%) of these 40 patients experienced grade III or IV pulmonary or esophageal toxicity. In the intention-to-treat analysis, the objective response rate was 46.4% (95% CI 33.0-60.2). The median time to progression was 6.2 months [1.1-26.0]. The median survival time was 13 months [0.3-44.9 months]. Nine patients progressed during RT-CT, six with brain metastases. CONCLUSION: Weekly docetaxel with concurrent radiotherapy, following chemotherapy is acceptable. The tumor response rate is moderate. Further trials are required to determine the risk-benefit relationship of this treatment schedule, and the possible benefit of adding other cytotoxic drugs.


Assuntos
Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Carcinoma Pulmonar de Células não Pequenas/tratamento farmacológico , Carcinoma Pulmonar de Células não Pequenas/radioterapia , Neoplasias Pulmonares/tratamento farmacológico , Neoplasias Pulmonares/radioterapia , Vimblastina/análogos & derivados , Adulto , Idoso , Cisplatino/administração & dosagem , Terapia Combinada , Docetaxel , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Análise de Sobrevida , Taxoides/administração & dosagem , Resultado do Tratamento , Vimblastina/administração & dosagem , Vinorelbina
9.
Med Trop (Mars) ; 65(4): 343-5, 2005 Sep.
Artigo em Francês | MEDLINE | ID: mdl-16548486

RESUMO

Mini mental state tests (MMS) were administered to 227 adults over the age of 40 years living in an Ecuadorian urban Andean community known to be an endemic zone for Taenia solium taeniasis and cysticercosis. The overall prevalence of cognitive impairment was 8.4% (19/227). The prevalence of cognitive impairment was 23.5% (8 cases) in adults over 75 years (n=34). The Hachinski ischemic score for vascular dementia was abnormal in 4 of the 19 adults (21%) exhibiting cognitive impairment. This survey highlighted a high prevalence of dementia in comparison with industrialised countries. Parasitic encephalopathy that was present in one out of five persons in this Andean community could play a part in early damage of cognitive function.


Assuntos
Transtornos Cognitivos/epidemiologia , Transtornos Cognitivos/parasitologia , Doenças Endêmicas , Neurocisticercose/complicações , Neurocisticercose/epidemiologia , Idoso , Idoso de 80 Anos ou mais , Equador/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , População Urbana
10.
Int Angiol ; 22(2): 172-6, 2003 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-12865883

RESUMO

AIM: A cross sectional study of the prevalence and risk factors of chronic venous insufficiency (CVI) in a South European occupational population was performed. METHODS: Over a 7-month period a questionnaire (CVI symptoms, general data and life style habits) was administrated to 1604 consecutive females (73.3%) and 586 consecutive males (26.7%). An oriented clinical examination was then performed. Subjects were classified into 4 groups: asymptomatic, light, moderate and severe CVI. Univariate and multivariate analysis were used. RESULTS: Mean age 38.8+/-11.6 years (range 15-65). The prevalence of CVI all classes confounded was 51.4% (62.3% in women and 21.8% in men); the prevalence of moderate and severe CVI was 10.4% (12.1% in female and 6.3% in male). Age (Odds Ratio (OR): 1.93, 95% confidence interval (CI): 1.55-3.53), female sex (OR: 2.34, 95% CI: 1.62-2.30), obesity (kg/m(2)) (OR:1.11, 95% CI: 1.07-1.15) and familial history of CVI (OR: 2.80, 95% CI: 2.02-3.89) were risks factors of moderate and severe CVI. The comparison extended to the whole group of CVI added other risk factors: history of leg injury, pregnancy; a sitting posture at work. Unexpectedly smoking had a protective effect but only in the female group for the last one. CONCLUSION: CVI is an important medical problem concern in this population. Some of the risk factors like obesity and standing position at work may benefit from preventive measures.


Assuntos
Pessoal de Saúde , Perna (Membro)/irrigação sanguínea , Insuficiência Venosa/epidemiologia , Adolescente , Adulto , Idoso , Bandagens , Doença Crônica , Estudos Transversais , Europa (Continente)/epidemiologia , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Postura , Prevalência , Fatores de Risco , Índice de Gravidade de Doença , Fatores Sexuais , Insuficiência Venosa/terapia
11.
Neuroepidemiology ; 22(2): 139-45, 2003.
Artigo em Inglês | MEDLINE | ID: mdl-12629280

RESUMO

Human neurocysticercosis (NC) is a parasitic disease caused by TAENIA SOLIUM when its larvae lodge in the central nervous system. NC prevalence estimates are obscured by the variable and often asymptomatic clinical picture. While infection depends on exposure, severity is possibly related with various host factors (immunity, genes and gender). This epidemiological study of cranial CT scans in an endemic rural community found that 9.1% of apparently healthy subjects had calcified lesions and were completely asymptomatic. Silent NC cases did not correlate with the exposure factors tested but showed family aggregation and higher rates of positive serology. Thus, NC prevalence may be higher than currently considered and host-related factors appear to be involved in infection and pathogenesis.


Assuntos
Calcinose/epidemiologia , Calcinose/etiologia , Neurocisticercose/complicações , Neurocisticercose/epidemiologia , População Rural/estatística & dados numéricos , Adolescente , Adulto , Distribuição por Idade , Idoso , Animais , Calcinose/diagnóstico por imagem , Criança , Feminino , Humanos , Masculino , México/epidemiologia , Pessoa de Meia-Idade , Neurocisticercose/diagnóstico por imagem , Prevalência , Suínos , Taenia solium/isolamento & purificação , Tomografia Computadorizada por Raios X
12.
Eur Respir J ; 20(4): 806-12, 2002 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-12412668

RESUMO

The aims of this survey were to determine the prevalence of symptoms indicative of chronic bronchitis (CB) in the French adult population, to identify the role of risk factors for CB, and to assess rates of CB diagnosis and pulmonary function testing (PFT) in the presence of CB. A representative sample of 14,076 individuals aged > or = 25 yrs completed a self-administered questionnaire on symptoms, comorbidities, smoking history, sociodemographical data, and diagnosis and care by physicians. The prevalence of CB was 4.1% and the prevalence of chronic cough and/or expectoration was 11.7%. In individuals with comorbidity, these figures were 10.4% and 24.4%, respectively. Smoking was associated with an increased frequency of CB. In subjects with CB, 44.6% had PFT (spirometry or peak expiratory flow measurement), 24% were diagnosed as having CB, and 7.2% received care. Rates of diagnosis, PFT, and follow-up were lower in young individuals and in those without comorbidity. PFT and follow-up were less common in current smokers. Prevalence of chronic bronchitis in French adults is high and similar in magnitude to that of other industrialised countries. Comorbidities and tobacco smoking increase the frequency of chronic bronchitis symptoms. Chronic bronchitis is too infrequently diagnosed, investigated and cared for.


Assuntos
Bronquite Crônica/diagnóstico , Bronquite Crônica/epidemiologia , Fumar/efeitos adversos , Adulto , Distribuição por Idade , Idoso , Intervalos de Confiança , Feminino , França/epidemiologia , Inquéritos Epidemiológicos , Humanos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Prevalência , Probabilidade , Testes de Função Respiratória , Fatores de Risco , Índice de Gravidade de Doença , Distribuição por Sexo , Inquéritos e Questionários , Taxa de Sobrevida
13.
Trop Med Int Health ; 6(9): 688-93, 2001 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-11555435

RESUMO

Cysticercosis is an infestation of Cysticercus cellulosae. When it occurs in the brain, chronic neurological complications can ensue, most commonly seizures. Neurocysticercosis is usually diagnosed by neuroimaging, a technique not available in most endemic countries. Hence immunological tests are valuable for diagnosis and epidemiological surveys. We evaluated the suitability of paper for storing blood and cerebrospinal fluid (CSF) until subsequent testing by enzyme-linked immunosorbent assay (ELISA), by testing whole blood samples on filter paper from 305 patients and CSF samples from 117 patients stored on ordinary white typing paper and on filter paper. Optimal preservation of biological samples is achieved when whole blood is stored on filter paper, CSF on white paper, and when samples are frozen within 1 week after collection. Our results could improve diagnostic capabilities and facilitate epidemiological surveys in endemic countries where immunodiagnostic tests cannot be rapidly performed because of inadequate laboratory infrastructure.


Assuntos
Ensaio de Imunoadsorção Enzimática , Neurocisticercose/diagnóstico , Manejo de Espécimes , Sangue/parasitologia , Estudos de Casos e Controles , Líquido Cefalorraquidiano/parasitologia , Humanos , México , Neurocisticercose/sangue , Neurocisticercose/líquido cefalorraquidiano , Papel , Reprodutibilidade dos Testes , Sensibilidade e Especificidade
14.
Am J Clin Nutr ; 74(3): 328-34, 2001 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-11522556

RESUMO

BACKGROUND: Amyotrophic lateral sclerosis (ALS) is a severe disease characterized by neurogenic amyotrophy and degeneration of upper and lower motor neurons. Although ALS patients usually experience reductions in fat-free mass (FFM), hypermetabolism via an undetermined source has also been reported. OBJECTIVE: The objective was to clarify the metabolic level of ALS patients. DESIGN: We measured the resting energy expenditure (REE) of 62 patients (32 men and 30 women) with ALS and investigated the factors correlated with metabolic level. Nutritional evaluation included bioelectrical impedance analysis, indirect calorimetry, and calculation of the body mass index. Neurologic assessment included an evaluation of peripheral and central neurologic deficit. Forced vital capacity was measured and smoking status was noted. A complete blood cell count was made and thyroid hormone and C-reactive protein concentrations were measured. RESULTS: Patients were hypermetabolic, by an average of approximately 10% more than in a reference healthy population. FFM, age, and the neutrophil count were significantly associated with REE. The only variable that contributed to the prediction of REE, REE/Z100 kHz (bioimpedance at 100 kHz), REE adjusted for FFM, or the ratio of measured REE to calculated REE was the neutrophil count, which explained only a small percentage of variance in the multiple regression analysis. Hypermetabolism was not associated with a reduction in respiratory function, tobacco use, hyperthyroidism, spasticity and fasciculation intensities, or infection. CONCLUSIONS: Our study corroborates the surprising finding that ALS patients are hypermetabolic. FFM, age, sex, manual muscular testing, the modified Norris limb score, weight, and an increase in circulating neutrophil counts correlated with the hypermetabolic state. Other factors may play a role in pathophysiologic processes that involve mitochondrial energy production or even sympathoadrenergic activation.


Assuntos
Esclerose Lateral Amiotrófica/metabolismo , Metabolismo Energético/fisiologia , Músculo Esquelético/metabolismo , Adulto , Idoso , Esclerose Lateral Amiotrófica/mortalidade , Esclerose Lateral Amiotrófica/fisiopatologia , Metabolismo Basal/fisiologia , Índice de Massa Corporal , Calorimetria Indireta , Impedância Elétrica , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Exame Neurológico , Neutrófilos , Prognóstico , Estudos Prospectivos , Análise de Regressão , Respiração , Fumar , Fatores de Tempo , Capacidade Vital/fisiologia
15.
Chest ; 119(6): 1778-90, 2001 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-11399705

RESUMO

BACKGROUND: The relatively low specificity of transesophageal echocardiography (TEE) for the diagnosis of aortic dissection (AD) or traumatic disruption of the aorta (TDA) has been attributed to linear artifacts. We sought to determine the incidence of intra-aortic linear artifacts in a cohort of patients with suspected AD or TDA, to establish the differential TEE diagnostic criteria between these artifacts and true aortic flaps, and to evaluate their impact on TEE diagnostic accuracy. METHODS AND RESULTS: During an 8-year period, patients at high risk of AD (n = 261) or TDA (n = 90) who underwent a TEE study and had confirmed final diagnoses were studied. In an initial retrospective series, linear artifacts were observed within the ascending and descending aorta in 59 of 230 patients (26%) and 17 of 230 patients (7%), respectively. TEE findings associated with linear artifacts in the ascending aorta were as follows: displacement parallel to aortic walls; similar blood flow velocities on both sides; angle with the aortic wall > 85 degrees; and thickness > 2.5 mm. Diagnostic criteria of reverberant images in the descending aorta were as follows: displacement parallel to aortic walls, overimposition of blood flow, and similar blood flow velocities on both sides of the image. In a subsequent prospective series (n = 121), systematic use of these diagnostic criteria resulted in improved TEE specificity for the identification of true intra-aortic flaps. CONCLUSIONS: Misleading intra-aortic linear artifacts are frequently observed in patients undergoing a TEE study for suspected AD or TDA. Routine use of the herein-proposed diagnostic criteria promises to further improve TEE diagnostic accuracy in the setting of severely ill patients with potential need for prompt surgery.


Assuntos
Aorta Torácica/lesões , Aneurisma da Aorta Torácica/diagnóstico por imagem , Dissecção Aórtica/diagnóstico por imagem , Ecocardiografia Transesofagiana , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Aorta Torácica/diagnóstico por imagem , Artefatos , Diagnóstico Diferencial , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Sensibilidade e Especificidade
16.
Arch Mal Coeur Vaiss ; 93(10): 1189-93, 2000 Oct.
Artigo em Francês | MEDLINE | ID: mdl-11107477

RESUMO

The object of this study was to assess the 10 year outcome of patients over 70 years of age who underwent amputation for vascular diseases. The secondary objective was to determine the prognostic risk factors. One hundred and four consecutive patients having undergone a leg (16 cases) or through-thigh amputation (88 cases) were reviewed. The average age at the time of surgery was 80.7 years (+/- 6.5 years, range 70-98 years). At the time of the enquiry, there were 4 survivors (operated on average 107.7 months previously +/- 14.6 months). The survival rates at one, six, twelve months and two years were 74.1%, 48.1%, 38.5% and 27% respectively. The mean survival time was 19.2 months with a median of 6 months. Univariate analysis showed the following criteria to be statistically correlated with a poor prognosis: female gender (p = 0.008), previous psychiatric disease (p = 0.007), cachexia (p = 0.004), age of 80 or over (p = 0.025), absence of diabetes (p = 0.025). Multivariate analysis showed that men had a lower risk of death (RR: 0.591--95% CI: 0.394-0.888--p = 0.011). The comparison of subjects who died during the first year with the survivors, showed a deleterious effect of proximal amputations (p = 0.032) and absence of diabetes (p = 0.021). These results confirm the very mediocre prognosis of elderly amputated vascular patients during the first postoperative year. Thereafter, the outlook is not as bad. Female gender would seem to be a poor prognostic factor whereas the presence of diabetes could identify a subgroup with a better outlook.


Assuntos
Amputação Cirúrgica , Sobreviventes/estatística & dados numéricos , Doenças Vasculares/cirurgia , Idoso , Idoso de 80 Anos ou mais , Análise de Variância , Comorbidade , Feminino , Humanos , Perna (Membro) , Masculino , Prognóstico , Estudos Retrospectivos , Fatores de Risco , Taxa de Sobrevida , Fatores de Tempo , Resultado do Tratamento
17.
Neuroepidemiology ; 19(6): 333-7, 2000.
Artigo em Inglês | MEDLINE | ID: mdl-11060508

RESUMO

The study included 140 patients with Parkinson's disease (PD) and 280 non-Parkinson age-matched controls to evaluate environmental risk factors associated with PD. The effect of exposure to environmental and dietary factors was determined using conditional logistic regression. This multivariate analysis showed that PD in first-degree relatives and tea drinking were the main risk factors for PD. Smoking appeared to be a protective factor. Exposure to toxic compounds was not a significant risk factor. Further research is needed to validate that tea consumption increases the risk of PD.


Assuntos
Exposição Ambiental/efeitos adversos , Doença de Parkinson/etiologia , Idoso , Poluentes Ambientais/efeitos adversos , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Estudos Retrospectivos , Fatores de Risco , População Rural/estatística & dados numéricos , Fumar , População Urbana/estatística & dados numéricos
18.
Ann Neurol ; 47(6): 808-11, 2000 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-10852548

RESUMO

A few studies have reported a variety of nonspecific histological lesions in patients with IgA monoclonal gammopathies and polyneuropathy. In our case, using electron microscopy, we observed widenings of the myelin lamellae identical to those commonly described in IgM neuropathies with anti-myelin-associated glycoprotein activity. Using immunoelectron microscopy, we demonstrated a direct involvement of IgA in myelin lesions. The search for a direct link between monoclonal dysglobulinemia, regardless of type, and polyneuropathy is important and may influence treatment.


Assuntos
Deficiência de IgA/patologia , Deficiência de IgA/fisiopatologia , Bainha de Mielina/patologia , Paraproteinemias/patologia , Paraproteinemias/fisiopatologia , Nervo Radial/patologia , Idoso , Complemento C3d/análise , Humanos , Deficiência de IgA/imunologia , Imunoglobulina A/análise , Imunoglobulina G/análise , Imunoglobulina M/análise , Masculino , Nervo Mediano/fisiopatologia , Microscopia Imunoeletrônica/métodos , Bainha de Mielina/imunologia , Bainha de Mielina/ultraestrutura , Glicoproteína Associada a Mielina/análise , Paraproteinemias/imunologia , Nervo Fibular/fisiopatologia , Nervo Radial/imunologia , Nervo Radial/ultraestrutura , Nervo Tibial/fisiopatologia , Nervo Ulnar/fisiopatologia
19.
J Cardiothorac Vasc Anesth ; 14(2): 156-60, 2000 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-10794334

RESUMO

OBJECTIVES: To determine whether plasma interleukin (IL)-4, IL-10, and IL-13 concentrations are associated with complications after coronary artery bypass graft (CABG) surgery with cardiopulmonary bypass (CPB). STUDY DESIGN: Prospective descriptive study. SETTING: University teaching hospital. PARTICIPANTS: Thirty-two patients during and 24 hours after CABG surgery. MEASUREMENTS AND MAIN RESULTS: Hemodynamic measurements and blood samples were obtained from 32 patients during and after surgery. Coagulation, pulmonary, and cardiovascular functions were specifically assessed during the first 24 hours postoperatively. Plasma IL-4 and IL-13 levels remained unchanged during CABG surgery. In contrast, plasma IL-10 concentrations increased by 117-fold in the immediate postoperative period and returned to pre-CPB values by 24 hours postoperatively. Plasma IL-10 levels were not different in patients with or without cardiovascular impairment, coagulation disorders, and lung injury. Plasma IL-10 levels did not correlate with the leukocyte count, the amount of catecholamines infused, or the duration of CPB. CONCLUSION: The present results suggest that the development of post-CABG surgery complications might be linked to an insufficient production of anti-inflammatory cytokines, such as IL-4, IL-10, or IL-13, which are unable to counteract the overproduction of inflammatory cytokines.


Assuntos
Ponte de Artéria Coronária , Interleucina-10/sangue , Interleucina-13/sangue , Interleucina-4/sangue , Idoso , Cardiotônicos/uso terapêutico , Dobutamina/uso terapêutico , Ensaio de Imunoadsorção Enzimática , Feminino , Hemodinâmica/fisiologia , Humanos , Período Intraoperatório , Masculino , Medicação Pré-Anestésica , Estudos Prospectivos , Circulação Pulmonar/fisiologia , Fatores de Tempo
20.
Int J Epidemiol ; 28(4): 799-803, 1999 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-10480714

RESUMO

BACKGROUND: Taenia solium neurocysticercosis (NCC) has been documented as one of the major causes of epilepsy in developing countries. However, methodological limitations have hindered the evaluation of the epidemiological relationship between cysticercosis and epilepsy at the community level. METHODS: We used the WHO protocol for epidemiological evaluation of neurological disorders to conduct a door-to-door survey among 2723 residents of San Pablo del Lago, an Ecuadorean rural community in which T. solium taeniasis/cysticercosis was known to be endemic. The WHO protocol was complemented by neuroimaging and immunological tests to confirm the diagnosis of this infection. RESULTS: In all 31 people suffering from active epilepsy were detected (prevalence 11.4 per 1000, 95% CI:7.7-15.4); 26 agreed to undergo a computer tomography (CT) examination, and 28 agreed to have blood drawn for serodiagnosis. Fourteen of the 26 (53.8%) had CT changes compatible with NCC and six of the 28 (21.4%) tested positive in the enzyme-linked immunoelectro-transfer blot (EITB) assay. In a seizure-free random sample of this population, 17 of 118 (144 per 1000) subjects examined by CT and 10 out of 96 (104 per 1000) examined by EITB had evidence of this infection. The differences between the epilepsy group and the random sample of the population were statistically significant (OR = 6.93, 95% CI: 2.7-17.5, P < 0.001) for CT diagnosis, but not for EITB results (OR = 2.75, 95% CI: 0.8-7.1, P > 0.12, NS). CONCLUSIONS: These findings confirm that T. solium NCC is a significant cause of epilepsy at the community level in Andean villages of Ecuador. It is important to initiate effective public health interventions to eliminate this infection, which may be responsible for at least half of the cases of reported epilepsy in Ecuador.


Assuntos
Epilepsia/epidemiologia , Neurocisticercose/epidemiologia , Adolescente , Adulto , Animais , Anticorpos Anti-Helmínticos/análise , Criança , Pré-Escolar , Cysticercus/imunologia , Cysticercus/isolamento & purificação , Equador/epidemiologia , Ensaio de Imunoadsorção Enzimática , Epilepsia/diagnóstico por imagem , Epilepsia/etiologia , Feminino , Humanos , Lactente , Recém-Nascido , Masculino , Pessoa de Meia-Idade , Neurocisticercose/complicações , Neurocisticercose/diagnóstico por imagem , Vigilância da População , Prevalência , População Rural , Tomografia Computadorizada por Raios X
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