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Search Results: 1 - 10 of 155808 matches for " Luis Henrique Brand?o Ribeiro "
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Vernon Furtado da Silva,Luis Henrique Brando Ribeiro,Rodolfo de Alkmim Moreira Nunes,Juliana Cavalcante
Perspectivas Online : Biológicas e Saúde , 2012,
Abstract: Relaciona alguns comprovados efeitos do exercício sobre vários fatores do bem estar físico e mental do idoso,buscando-se evidenciar estes benefícios com mudan as cerebrais vistas a partir de uma série de processos emecanismos específicos. Estabelece-se uma inter-rela o destes efeitos com fun es bio-estruturais e biooperacionaisdo cérebro sobre as ineficiências comportamentais advindas do processo de envelhecimento eproblemas organicos a ele relacionados. Busca-se mostrar todo e qualquer comportamento como resultado deprocessos neurotransmissores integrando-se em ordem funcional. Analisa-se a neurogêse como o principalfen meno da plasticidade cerebral, visualizando-a como uma referência para a formula o de métodos e técnicasde reabilita o de várias doen as e desordens do comportamento motor e cognitivo, principalmente algumasrelacionadas ao processo de envelhecimento. Evidências que d o suporte a discuss o e andamento do trabalhoadvêm de pesquisas realizadas com humanos e n o humanos. Estas últimas est o mostradas em um maiorpercentual.
Tratamento cirúrgico de cisto broncogênico paratraqueal por mediastinoscopia cervical
Brando, Daniel Sammartino;Boasquevisque, Carlos Henrique Ribeiro;Haddad, Rui;Ponzio, Eduardo de Souza;
Jornal Brasileiro de Pneumologia , 2005, DOI: 10.1590/S1806-37132005000400016
Abstract: bronchogenic cysts of the mediastinum are benign congenital lesions, usually found in adults. when surgery is indicated, the classical approach is resection of the lesion by thoracotomy or thoracoscopy. herein, we describe the complete resection of a paratracheal bronchogenic cyst by cervical mediastinoscopy. we also include a brief review and discussion of the literature.
Aspectos clínico-patológicos do carcinoma bronquioloalveolar e sobrevida em pacientes no estágio clínico I
Brando, Daniel Sammartino;Haddad, Rui;Marsico, Giovanni Antonio;Boasquevisque, Carlos Henrique Ribeiro;
Jornal Brasileiro de Pneumologia , 2010, DOI: 10.1590/S1806-37132010000200003
Abstract: objective: to analyze the clinicopathological aspects of bronchioloalveolar carcinoma (bac) and the survival in a sample of patients at clinical stage i. methods: a retrospective study involving 26 patients diagnosed with clinical stage i bac and undergoing surgery at the thoracic diseases institute of the federal university of rio de janeiro, in the city of rio de janeiro, brazil, between 1987 and 2007. we analyzed clinicopathological and radiological aspects, as well as mortality and survival. the data, which were collected from the medical charts of the patients, were statistically analyzed. results: females predominated (n = 16). the mean age at diagnosis was 68.5 years. most patients were active smokers (69.2%). the most common forms of presentation of bac were the asymptomatic form (84.6%) and the nodular form (88.5%). involvement of the upper lobes predominated (57.7%). stage ib was the most common pathological stage, followed by stages ia and iib (46.2%, 38.4% and 15.4%, respectively). there was no in-hospital mortality. four patients died during the postoperative follow-up, with a mean disease-free survival time of 21.3 months. the overall five-year survival rate was 83%. the probability of survival for the patients diagnosed after 1999 showed a trend toward an increase when compared with that for those diagnosed up through 1999 (three-year survival rate: 92% vs. 68%; p = 0.07). conclusions: the clinicopathological aspects of this study sample were similar to those of patients with bac evaluated in previous studies.
Community-Acquired Severe Sepsis: A Prospective Cohort Study  [PDF]
Cristiana Sousa, Mariana Brando, Orquídea Ribeiro, Teresa Cardoso
Open Journal of Internal Medicine (OJIM) , 2015, DOI: 10.4236/ojim.2015.53008
Abstract: Severe sepsis (SS) is one of the principal causes of admission in intensive care units (ICU), with an associated high morbidity and mortality. This study intends to characterize epidemiology of community-acquired SS (CASS) with special emphasis in the prevalence of multidrug resistant organisms and independent prognostic factors associated with ICU mortality. Methods: A prospective cohort study was conducted over 3.5 years, including all consecutive adult patients with CASS admitted to a mixed ICU, in a 600-bed university-affiliated hospital. Results: 1221 patients were admitted into the ICU, 25% with CASS. The mean age was 59 years and the mean SAPS (simplified acute physiological score) was II 48. Most had septic shock (67%). Respiratory (57%), intra-abdominal (22%) and urinary tract (8%) infections were the main sources of infection. The overall isolation rate was 56%. The most common identified microorganisms were Streptococcus pneumoniae (27%), Escherichia coli (22%), Staphylococcus aureus methicillin sensitive (8%) and Haemophilus influenzae (7%). The median ICU and hospital length of stay were 8 and 16 days, respectively. The ICU mortality rate was 33. Independent risk factors associated with higher mortality were older age, higher SAPS II, septic shock and chronic hepatic disease. Female gender was independently associated with lower mortality. The type of microorganism was not significantly associated with prognosis. Conclusion: CASS was highly prevalent among ICU admissions. Independent risk factors associated with ICU mortality included older age and previous comorbidities, but mainly severity of acute illness reinforcing the need for early recognition and treatment. Multidrug resistant organisms were implicated in considerable proportion of community-acquired sepsis.
Resultados do tratamento artroscópico das rupturas do manguito rotador
Ramos, Carlos Henrique;Sallum, Jo?o Said;Sobania, Roberto Luis;Borges, Luis Gustavo;Sola Junior, Wilson Carlos;Ribeiro, Leandro Yuji Pereira;
Acta Ortopédica Brasileira , 2010, DOI: 10.1590/S1413-78522010000100002
Abstract: objective: to evaluate the results of arthroscopic treatment for rotator cuff tears. methods: a retrospective study was carried out demonstrating the results of this technique in 42 patients operated between 2002 and 2006. the mean follow-up was 31 months and average age was 57 years. the dominant limb was operated in 73.8% of cases. function and pain were evaluated using criteria of ucla score system and visual analogic scale respectively. results: the results were satisfactory in 85.7% (59.5% excellent and 26.2% good), with 14.3% unsatisfactory. the most frequent associated lesion was the long head of the biceps tendon (57.1%). nevertheless, the presence of other lesions did not alter the end results. the same occurred in relation to age and follow-up period. when comparing large and massive tears with small and mid-sized ones, the first group had significantly inferior functional results. the function was worse in cases of massive tear. conclusion: arthroscopic rotator cuff repair provides lower surgical morbidity and intrarticular diagnosis of associated lesions in comparison to open surgery. the benefit of the procedure was confirmed mainly by pain relief, even in cases of more extensive lesions.
Therapeutic failure of praziquantel in the treatment of Schistosoma haematobium infection in Brazilians returning from Africa
Silva, Iran Mendon?a da;Thiengo, Roberto;Concei??o, Maria José;Rey, Luis;Lenzi, Henrique Leonel;Pereira Filho, Edson;Ribeiro, Paulo César;
Memórias do Instituto Oswaldo Cruz , 2005, DOI: 10.1590/S0074-02762005000400018
Abstract: several cases of therapeutic failure of praziquantel used for the treatment of urinary schistosomiasis have been reported. alternative drugs, like niridazol and metrifonate, have shown a lower therapeutic effect and more side effects than praziquantel. twenty-six brazilian military men (median age of 29 years) with a positive urine parasitological exam who were part of a united nation peace mission in mozambique in 1994 were treated with 40 mg/kg body weight praziquantel, single dose. they swimmed in licungo river (mocuba city, mozambique) during the weekends. after this, they presented haematuria, dysuria, polakiuria, and lumbar pain. control cystoscopy examinations carried out between 6 and 24 months after each treatment (including two additional treatments at a minimum interval of 6 months) revealed the presence of viable eggs. granulomas in the vesical submucosa were observed in 46.2% (12/26) of the individuals. a vesical biopsy confirmed the presence of granulomas in all of these patients and the presence of viable eggs in 34.3% (9/26) of individuals who no longer excreted eggs in urine. the eggs filled with miracidia showed characteristics of viability. histopathological examination using different strains demonstrated therapeutic failure and the need for repeated treatment. in this study, we demonstrated a low efficacy of praziquantel in the treatment of schistosomiasis haematobia, and the necessity of the urinary bladder biopsy as criterion of cure.
Garroteamento da artéria coronária na revasculariza??o do miocárdio: Rela??o entre o grau de aterosclerose e a les?o vascular: estudo experimental
Gerola, Luís Roberto;Moura, Luís Ant?nio Ribeiro de;Buffolo, ênio;Le?o, Luis Eduardo Villa?a;Soares, Henrique Caivano;Gallucci, Costabile;
Revista Brasileira de Cirurgia Cardiovascular , 1987, DOI: 10.1590/S0102-76381987000100008
Abstract: coronary artery surgery, specially when performed without cardiopulmonary bypass, needs an "atraumatic" method that allows temporary coronary occlusion with minimal injury to the vessel wall. an experimental study was performed using the right coronary artery of cadaver hearts in order to evaluate the methods of "atraumatic" clamping of arteries with variable degrees of atherosclerosis. the vessels were evaluated histologically both for intensity of the atherosclerotic disease and intensity of injury to the coronary artery wall. results suggest a relationship between severity of coronary artery disease and degree of injury to the artery wall.
Um modelo experimental de abla??o do Sistema Nervoso Intrínseco Cardíaco reduz a contratilidade do cora??o de ratos
Scorzoni Filho, Adilson;Nakamura, Ernani J.;Faria, Sandro Mendon?a;Marchetti, Alexandre Henrique;Brando, José Mário;Aranha, Alexandre Luiz;Mattar, Luis Augusto;Vicente, Walter Vilella Andrade;Garcia, Sérgio Britto;
Revista Brasileira de Cirurgia Cardiovascular , 2004, DOI: 10.1590/S0102-76382004000300010
Abstract: objective: the function of intrinsic cardiac nervous system is largely unknown, as is its role in heart disease. in the digestive system, a topic aplication of benzalkonium chloride (bc) leads to intrinsic denervation of the viscera. thus, our aim was to obtain an experimental model of cardiac intrinsic denervation by the application of bc. method: thirty male wistar rats received intrapericardic injection of cb 0.3% (cb animals) and thirty similar animals received saline (c animals). after 15 days the animals were divided in three groups, with 10 cb-treated and 10 saline-treated animals each. group i was submitted to radiological and morphologic studies. the cardiac shadow area (csa) and cardiothoracic index were calculated in roentgenograms with a semi-automatic image analysis system (mini-mop). the day after the animals were weighted and sacrificed with heart, liver and lung collected for histopathologic analysis. the animals of group ii were submitted to a hemodynamic study. measurements of blood pressure, heart rate and cardiac output were performed using the cardiomax ii termodilution system and a termistor sensor. with the animals of the group iii, the integrity of extrinsic parassympatic cardiac innervartion was examined by measuring heart rate response to electrical stimulation of the right vagus. electrical activity was assessed by ecg. results: cb animals presented increases in cardiothoracic index, csa, body and liver weight. in these animals the histopathologic analysis showed passive chronic congestion and reduction of the number of atrial neurons. in the hemodynamic study, total peripheral resistance and heart rate were similar in both groups, but blood pressure and cardiac index were reduced in the cb group. the vagal stimulation and ecg were similar in both groups. conclusion: the intrinsic cardiac nervous system denervation caused dilated cardiopathy in rats with left and right heart failure. the etiology of some dilated cardiopathies in human is l
Lack of Systematic Topographic Difference between Attention and Reasoning Beta Correlates
Luis F. H. Basile, Jo?o R. Sato, Milkes Y. Alvarenga, Nelson Henrique, Henrique A. Pasquini, William Alfenas, Sérgio Machado, Bruna Velasques, Pedro Ribeiro, Roberto Piedade, Renato Anghinah, Renato T. Ramos
PLOS ONE , 2013, DOI: 10.1371/journal.pone.0059595
Abstract: Based on previous evidence for individual-specific sets of cortical areas active during simple attention tasks, in this work we intended to perform within individual comparisons of task-induced beta oscillations between visual attention and a reasoning task. Since beta induced oscillations are not time-locked to task events and were first observed by Fourier transforms, in order to analyze the cortical topography of attention induced beta activity, we have previously computed corrected-latency averages based on spontaneous peaks of band-pass filtered epochs. We then used Independent Component Analysis (ICA) only to single out the significant portion of averaged data, above noise levels. In the present work ICA served as the main, exhaustive means for decomposing beta activity in both tasks, using 128-channel EEG data from 24 subjects. Given the previous observed similarity between tasks by visual inspection and by simple descriptive statistics, we now intended another approach: to quantify how much each ICA component obtained in one task could be explained by a linear combination of the topographic patterns from the other task in each individual. Our hypothesis was that the major psychological difference between tasks would not be reflected as important topographic differences within individuals. Results confirmed the high topographic similarity between attention and reasoning beta correlates in that few components in each individual were not satisfactorily explained by the complementary task, and if those could be considered “task-specific”, their scalp distribution and estimated cortical sources were not common across subjects. These findings, along with those from fMRI studies preserving individual data and conventional neuropsychological and neurosurgical observations, are discussed in support of a new functional localization hypothesis: individuals use largely different sets of cortical association areas to perform a given task, but those individual sets do not change importantly across tasks that differ in major psychological processes.
Heart Rate Recovery in Asymptomatic Patients with Chagas Disease
Maria Clara Noman de Alencar, Manoel Otávio da Costa Rocha, Márcia Maria de Oliveira Lima, Henrique Silveira Costa, Giovane Rodrigo Sousa, Renata de Carvalho Bicalho Carneiro, Guilherme Canabrava Rodrigues Silva, Fernando Vieira Brando, Lucas Jordan Kreuser, Antonio Luiz Pinho Ribeiro, Maria Carmo Pereira Nunes
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0100753
Abstract: Background Chagas disease patients with right bundle-branch block (RBBB) have diverse clinical presentation and prognosis, depending on left ventricular (LV) function. Autonomic disorder can be an early marker of heart involvement. The heart rate recovery (HRR) after exercise may identify autonomic dysfunction, with impact on therapeutic strategies. This study was designed to assess the HRR after symptom-limited exercise testing in asymptomatic Chagas disease patients with RBBB without ventricular dysfunction compared to patients with indeterminate form of Chagas disease and healthy controls. Methods One hundred and forty-nine subjects divided into 3 groups were included. A control group was comprised of healthy individuals; group 1 included patients in the indeterminate form of Chagas disease; and group 2 included patients with complete RBBB with or without left anterior hemiblock, and normal ventricular systolic function. A symptom-limited exercise test was performed and heart rate (HR) response to exercise was assessed. HRR was defined as the difference between HR at peak exercise and 1 min following test termination. Results There were no differences in heart-rate profile during exercise between healthy individuals and patients in indeterminate form, whereas patients with RBBB had more prevalence of chronotropic incompetence, lower exercise capacity and lower HRR compared with patients in indeterminate form and controls. A delayed decrease in the HR after exercise was found in 17 patients (15%), 9% in indeterminate form and 24% with RBBB, associated with older age, worse functional capacity, impaired chronotropic response, and ventricular arrhythmias during both exercise and recovery. By multivariable analysis, the independent predictors of a delayed decrease in the HRR were age (odds ratio [OR] 1.11; 95% confidence interval [CI] 1.03 to 1.21; p = 0.010) and presence of RBBB (OR 3.97; 95% CI 1.05 to 15.01; p = 0.042). Conclusions A small proportion (15%) of asymptomatic Chagas patients had attenuated HRR after exercise, being more prevalent in patients with RBBB compared with patients in indeterminate form and controls.
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