MED 1A - Artigos publicados em revistas indexadas na Pubmed/Medline
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- Pure red cell aplasia due to persistent B19 parvovirus infection in patient infected with human immunodeficiency virus type 1. Recovery with alpha‐interferon therapyPublication . MARTINS, A.; COSTA, A.; OLIVEIRA, M.; RODRIGUES, M.; RIBEIRO, A.; SILVESTRE, F.; REIS, A.Sangre (Barc). 1998 Feb;43(1):67-9. Pure red cell aplasia due to persistent B19 parvovirus infection in patient infected with human immunodeficiency virus type 1. Recovery with alpha-interferon therapy. Martins A, Costa A, Oliveira MJ, Rodrigues M, Ribeiro AP, Silvestre F, Reis A. SourceMedicine (Medicina 1 and Haematology Services) Department, Hospital Geral de Santo Antonio, Porto, Portugal. Abstract B19 parvovirus (PV) infection is ordinarily resolved with the production of specific antibodies that neutralize virus infectivity for erythroid host cells. Nevertheless persistent infection with B19 PV and pure red blood cell aplasia have been documented. A 27 year-old male. i.v. drug abuser, HIV+ and HCV was diagnosed of pure red cell aplasia. Six months later we had serologic evidence of persistent parvovirus infection. Interferon therapy, started for HCV infection, showed a marked improvement of anaemia and anti parvovirus IgM became negative. It is discussed the possible role of interferon therapy in persistent parvovirus infection. PMID:9577184[PubMed - indexed for MEDLINE]
- Viridans streptococcus endocarditis associated with spondylodiscitis.Publication . Luz, A.; Castro, A.; Ribeiro, R.; Bernardo, L.; Cyrne-Carvalho, H.; Bernardo, A.; Gomes, L.Rev Port Cardiol. 2004 May;23(5):723-8. Viridans streptococcus endocarditis associated with spondylodiscitis. [Article in English, Portuguese] Luz A, Castro A, Ribeiro R, Bernardo L, Carvalho H, Bernardo A, Gomes L. SourceServiço de Cardiologia e Medicina 2 do Hospital Geral de Santo António, Porto, Portugal. andrecoimbraluz@hotmail.com Abstract The authors report a case of a 78-year-old male, admitted to the Hospital with fever, lumbar pain and a systolic murmur. Viridans streptococcus endocarditis associated with spondylodiscitis was diagnosed. Images and results of the exams are presented. This case is compared with similar studies in the literature. PMID: 15279456 [PubMed - indexed for MEDLINE]
- Non-invasive ventilation in cardiogenic pulmonary edema in the emergency department.Publication . Carvalho, L.; Carneiro, R.; Freire, E.; Pinheiro, P.; Aragão, I.; Martins, A.Abstract Bilevel positive pressure (BiPAP) non-invasive ventilation (NIV) is frequently used in our emergency department (ED), as an adjuvant in the treatment of acute cardiogenic pulmonary edema (ACPE) to reduce the need for tracheal intubation (TI) in these patients. The purpose of our study was to evaluate the safety of NIV in patients with ACPE in our ED, used by a group of physicians outside the intensive care unit (ICU), by comparing our results with previously published results. We also wanted to identify possible additional advantages of NIV in the treatment of acpe. We recorded clinical and physiological data before and after NIV of all patients with diagnosis and treatment of ACPE in our ED and for whom NIV was ordered as adjuvant treatment, between July 2004 and February 28 2005. During this period, NIV was ordered in 17 patients with ACPE. The mean ventilation pressures used were p(INSP) 16.5 +/- 5 cm H2O and p(exp) 8.8 +/- 4 cm H2O. none of the patients refused NIV. In six patients NIV was not initiated immediately together with medical therapeutics. one patient required Ti and the other 16 (94%) improved after NIV. After the acpe episode had resolved, fourteen patients (82%) were eventually discharged from hospital whereas 3 (18%) died during hospitalization. We observed a statistically significant improvement after one hour of NIV in respiratory and pulse rate, arterial pH, PaCO2 and peripheral blood O2 saturation. Despite the small sample size, these results suggest that it is possible to use NIV in the treatment of ACPE outside the ICU, without increasing the risks of TI or decreasing efficacy. In these cases NIV probably accelerates clinical resolution and relieves symptoms.
- STAPHYLOCOCCUS AUREUS RESISTENTE À METICILINA E ABCESSO HEPÁTICO Análise Retrospectiva de 117 CasosPublication . Ferreira, J.; Abreu, M.; Rodrigues, P.; Carvalho, L.; Correia, J.Introdução: Os abcessos hepáticos constituem uma entidade clínica que coloca desafios no diagnóstico e tratamento, sendo em muito casos necessário um elevado índice de suspeição. A maioria dos abcessos hepáticos piogénicos são polimicrobianos. Os agentes entéricos facultativos e anaeróbios são os mais comuns. Na literatura revista, os abcessos hepáticos a Staphylococcus aureus constituem cerca de 7% dos abcessos hepáticos piogénicos. Esta infecção habitualmente resulta de disseminação hematogénea de microrganismos isolados em infecções à distância. Não existem séries publicadas sobre esta matéria, sendo que a informação disponível se restringe a case-reports. Objectivo e Métodos: Com o objectivo de aprofundar a fisiopatologia, diagnóstico e história natural dos abcessos hepáticos, nomeadamente por Staphylococcus Aureus resistente à meticilina (MRSA), realizou-se um estudo retrospectivo, fazendo a revisão do processo clínico dos doentes com o diagnóstico de abcesso hepático/piemia portal entre Janeiro de 2004 e Dezembro de 2009, num total de 117 doentes. Resultados: Clinicamente, a maior parte dos doentes tinha febre e dor abdominal. A esmagadora maioria dos doentes não dispensou TC abdominal no diagnóstico. Apenas 81,2% dos doentes realizaram algum tipo de colheita para microbiologia. O agente mais frequentemente isolado foi a Escherichia coli. O MRSA estava presente em 7,6% dos abcessos cujo pús foi processado. A terapêutica mais frequentemente seleccionada foi a drenagem percutânea associada a antibioterapia. Todos os MRSA isolados eram sensíveis ao trimetoprim-sulfametoxazol e vancomicina. O grupo de patologia subjacente mais frequentemente encontrada foi o das doenças das vias biliares, seguido dos pós-operatórios recentes. Na esmagadora maioria das infecções a MRSA, o grupo de patologia subjacente mais frequentemente encontrada foi o pós-operatório abdominal. A taxa de mortalidade global foi de 17,9%. No que respeita a abcessos a MRSA, faleceu 1 doente devido a complicações da doença de base. Conclusões: Estes dados confirmam que o MRSA é um patogénio importante em infecções hospitalares, incluindo as intra-abdominais. É de salientar a importância do pós-operatório abdominal como factor de risco para infecção por este agente, um dado pouco descrito na literatura revista. Estes achados acarretam implicações assinaláveis a nível terapêutico, investigacional e prognóstico.
- Human Immunodeficiency Virus - Associated Neurocognitive Disorders (HANDs)Publication . Ferreira, J.; Almeida, F.; Coya, P.; Leuschner, P.; Correia, J.As alterações neurocognitivas são prevalentes nos doentes com infecção pelo vírus da imunodeficiência humana (VIH). As manifestações clínicas são muitas vezes subtis, passando facilmente despercebidas na interacção casual. Esta revisão tem como objectivo clarificar e organizar o tema, fornecendo classificações actuais, métodos de diagnóstico e opções terapêuticas. A metodologia utilizada no processo de revisão, centrou-se na análise pormenorizada de um conjunto de artigos, ensaios clínicos e revisões, obtidos por pesquisa na Medline, UpToDate, Medscape e Google, abrangendo os últimos 10 anos de investigação na área. São abordadas as repercussões neuropsiquiátricas do HIV, desde a sua génese, fisiopatologia, diagnóstico e classificação, até ao tratamento e perspectivas futuras. As alterações neurocognitivas associadas ao VIH (HANDs) são patologias de atingimento predominantemente subcortical, condicionando grande variabilidade na sua apresentação e multiplicidade de diagnósticos diferenciais. O índice de suspeição é essencial para a rápida identificação desta patologia em que a intervenção precoce melhora o prognóstico. Embora tenha havido enorme progresso no conhecimento, compreensão e tratamento das HANDs, há um vasto território a explorar, nomeadamente no que respeita à etiologia, prevenção e terapêutica.
- Non-Small Cell Lung Cancer: Screening, Diagnosis, and StagingPublication . Ferreira, J.; Magalhães, M.; Rocha, E.; Marques, F.Lung cancer is the leading cause of cancer deaths worldwide. Tobacco consumption is the primary cause of lung cancer, accounting for more than 85% 90% of all lung cancer deaths. Non-small cell lung cancer accounts for about 85% of all lung cancers. Several studies have shown that low-dose helical CT of the lung detects more nodules and lung cancers, including early-stage cancers, than does chest radiography. The National Lung Cancer Screening Trial results show that three annual rounds of low-dose CT screening reduce mortality from lung cancer. Despite the great debate around lung cancer screening, recently the National Comprehensive Cancer Network has come out in favor of lung cancer screening in an updated set of guidelines. All patients who present with suspect lung cancer should have a complete and meticulous history and physical examination performed to identify symptoms or physical findings suggestive of locally extensive or metastatic disease, assess pulmonary health status, identify significant comorbidities, and assess overall health status. Tissue sampling is required to confirm a diagnosis in all patients with suspected lung cancer. Non-surgical approaches, surgical approaches, or both may be used to obtain a tissue sample. Evaluation of the mediastinal lymph nodes is a key step in the further staging of the patient. The best way of evaluating mediastinal lymph nodes is still a matter of debate. The tumor node metastasis (TNM) International Staging System provides useful prognostic information and is used to stage all patients with non-small cell lung cancer. Recent trials added new data on screening and diagnostic approach. Those data will be reviewed in this paper.
- Doença de Behçet e linfoma. Associação fortuita?Publication . Ferreira, J.; Gonçalves, F.; Correia, J.; Xavier, L.; Farrajota, P.A doença de Behçet (DB) caracteriza-se, classicamente, por uma tríade sintomática de úlceras orais recorrentes, úlceras genitais e uveíte. A DB é sistémica, com desenvolvimento de lesões vasculíticas ou vasculopáticas nas áreas afectadas. Estas áreas podem apresentar evidência microscópica de infiltração tecidual com células T e neutrófilos. A associação com Linfoma não-Hodgkin tem sido reportada em raros casos, não permitido afirmar relação causal. Reportamos um caso de Linfoma não-Hodgkin em doente com doença de Behçet, com revisão de literatura neste contexto.
- Pulmonary Hypertension in Portugal: First Data from a Nationwide RegistryPublication . Baptista, R.; Meireles, J.; Agapito, A.; Castro, G.; Marinho-Silva, A:; Shiang, T.; Gonçalves, F.; Rubalo-Martins, S.; Nunes-Diogo, A.; Reis, A.Introduction. Pulmonary arterial hypertension (PAH) is a rare disease that must be managed in specialized centers; therefore, the availability of epidemiological national data is critical. Methods. We conducted a prospective, observational, and multicenter registry with a joint collaboration from five centers from Portugal and included adult incident patients with PAH or chronic thromboembolic pulmonary hypertension (CTEPH). Results. Of the 79 patients enrolled in this study, 46 (58.2%) were classified as PAH and 33 patients (41.8%) as CTEPH. PAH patients had a mean age of 43.4 ± 16.4 years. Idiopathic PAH was the most common etiology (37%). At presentation, PAH patients had elevated right atrial pressure (RAP) (7.7 ± 5.9 mmHg) and mean pulmonary vascular resistance (11.4 ± 6.5 Wood units), with a low cardiac index (2.7 ± 1.1 L·min−1·m−2); no patient was under selective pulmonary vasodilators; however, at follow-up, most patients were on single (50%), double (28%), or triple (9%) combination vasodilator therapy. One-year survival was 93.5%, similar to CTEPH patients (93.9%), that were older (60.0 ± 12.5 years) and had higher RAP (11.0 ± 5.2 mmHg, ). Conclusions. We describe for the first time nationwide data on the diagnosis, management, and prognosis of PAH and CTEPH patients in Portugal. Clinical presentation and outcomes are comparable with those reported on other national registries.
- Mineralocorticoid receptor antagonism in acutely decompensated chronic heart failurePublication . Ferreira, J.; Santos, M.; Almeida, S.; Marques, I.; Bettencourt, P.; Cyrne-Carvalho, H.Spironolactone was likely to provide faster congestion relief. -------------------------------------------------------------------------------- Abstract Background/objectives Mineralocorticoid receptor antagonist (MRA) use in acutely decompensated chronic heart failure (ADCHF) may improve congestion through diuretic effect and prevent neurohormonal activation. We aimed to evaluate the clinical effect and safety of spironolactone in ADCHF. Methods Prospective, experimental, single-center, and single-blinded trial. Patients were treated with: standard ADCHF therapy or oral spironolactone 50–100 mg/d plus standard ADCHF therapy. Results During a 1 year period, 100 patients were enrolled, 50 included in the treatment group. Mean (SD) spironolactone dose (mg) at day 1 was 94.5 ± 23.3 and at day 3 was 62.7 ± 24.3. Worsening renal function (increase in pCr ≥ 0.3 mg/dL from day 1 to day 3) was more likely to occur in control group (20% vs. 4%; p = 0.038), serum potassium did not differ between groups, and plasma NTproBNP had a significant decrease in spironolactone group at day 3 (median [IQR], 2488 [4579] vs. 1555 [1832]; p = 0.05). Furthermore, a greater proportion of patients in the treatment group were free of congestion at day 3: less edema, rales, jugular venous pressure (JVP) and orthopnea (all, p < 0.05). In addition, a significantly higher proportion of patients were on oral furosemide at day 3 (44% vs. 82%; p < 0.001). Conclusions Our study supports the safety of high dose spironolactone in ADCHF and suggests a positive impact in the resolution of congestion. The important findings of our pilot study need to be confirmed in larger trials.
- Left-sided infective endocarditis: analysis of in-hospital and medium-term outcome and predictors of mortalityPublication . Ferreira, J.; Gomes, F.; Rodrigues, P.; Araújo Abreu, M.; Maia, J.; Bettencourt, P.; Luz, A.; Torres, S.; Araújo Correia, J.Abstract Introduction: Despite diagnostic and therapeutic advances, infective endocarditis (IE) remains a challenging and potentially lethal disease. The prognosis of IE remains poor; in the last 30 years, its incidence and mortality have only been marginally reduced. Early identification of high-risk patients can change the course of the disease and improve outcomes. Objectives and methods: To describe and investigate predictors of mortality during hospital stay and in the six months after discharge in a cohort of left-sided IE patients in two tertiary centers. All patients diagnosed with IE (ICD9 code 133) were registered in a uniform database. Results: One hundred and forty-seven consecutive case patients with left-sided IE were included in this study. Thirty-five patients (23.8%) died during hospital stay. The variables significantly associated with increased mortality in univariate analysis were Charlson index ≥5, use of immunosuppressants, sepsis (severe sepsis and/or septic shock), cardiogenic shock and inappropriate use of antibiotic therapy. Conversely, surgical therapy and hospital length of stay ≥30 days were significantly associated with lower mortality. In multivariate analysis the most important predictors of in-hospital mortality were sepsis (severe and/or shock), use of immunosuppressants and inappropriate use of antibiotic therapy. There was a significant relation between the use of immunosuppressants and the occurrence of sepsis. The presence of significant valve disease after IE significantly increased the risk of heart failure. Conclusions: Our results may help to identify IE patients at increased risk for in-hospital mortality and medium-term disability. These findings can help to identify candidates for earlier and more aggressive management.