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2.
Clin Appl Thromb Hemost ; 28: 10760296221132556, 2022.
Article in English | MEDLINE | ID: mdl-36474344

ABSTRACT

Direct oral anticoagulants (DOACs) for venous thromboembolism (VTE) prevention after major gynecological cancer surgery might be an alternative to parenteral low-molecular-weight heparin (LMWH). Patients undergoing major gynecological cancer surgery were randomized at hospital discharge to receive rivaroxaban 10 mg once daily or enoxaparin 40 mg once daily for 30 days. The primary efficacy outcome was a combination of symptomatic VTE and VTE-related death or asymptomatic VTE at day 30. The primary safety outcome was the incidence of major or clinically relevant nonmajor bleeding. Two hundred and twenty-eight patients were enrolled and randomly assigned to receive rivaroxaban (n = 114)or enoxaparin (n = 114). The trial was stopped due to a lower-than-expected event rate. The primary efficacy outcome occurred in 3.51% of patients assigned to rivaroxaban and in 4.39% of patients assigned to enoxaparin (relative risk 0.80, 95% CI 0.22 to 2.90; p = 0.7344). Patients assigned to rivaroxaban had no primary bleeding event, and 3 patients (2.63%) in the enoxaparin group had a major or CRNM bleeding event (hazard ratio, 0.14; 95% CI, 0.007 to 2.73; P = 0.1963). In patients undergoing major gynecological cancer surgery, thromboprophylaxis with rivaroxaban 10 mg daily for 30 days had similar rates of thrombotic and bleeding events compared to parenteral enoxaparin 40 mg daily. While the power is limited due to not reaching the intended sample size, our results support the hypothesis that DOACs might be an attractive alternative strategy to LMWH to prevent VTE in this high-risk population.


Subject(s)
Pelvic Neoplasms , Venous Thromboembolism , Humans , Enoxaparin/adverse effects , Rivaroxaban/therapeutic use , Venous Thromboembolism/etiology , Venous Thromboembolism/prevention & control , Anticoagulants/therapeutic use , Heparin, Low-Molecular-Weight
5.
J Vasc Bras ; 19: e20190148, 2020 Jul 06.
Article in English | MEDLINE | ID: mdl-34178071

ABSTRACT

In countries that have controlled classic causes of maternal death, such as eclampsia and hemorrhage, venous thromboembolism (VTE) has become the major concern. Prevention of VTE during pregnancy and postpartum by applying guidelines and implementing pharmacoprophylaxis is still the best strategy to reduce occurrence of this complication. Hormonal contraceptives and hormone replacement therapy also increase the risk of VTE, but women cannot be deprived of their benefits, which increase their freedom at childbearing age and reduce their symptoms at menopause. Both indiscriminate use and unmotivated prohibition are inappropriate. Contraceptive and hormone replacement methods should be chosen with care, evaluating the patients' contraindications, eligibility criteria, and autonomy. This article presents a nonsystematic review of recent literature with the aim of evaluating and summarizing the associations between VTE and clinical situations peculiar to women.

6.
J. vasc. bras ; 19: e20190148, 2020.
Article in Portuguese | LILACS | ID: biblio-1135107

ABSTRACT

Resumo Nos países que controlaram as causas clássicas de óbito materno, como eclâmpsia e hemorragia, o tromboembolismo venoso (TEV) passou a ser a principal preocupação. A prevenção do TEV na gestação e no puerpério, por meio de diretrizes e da instituição de farmacoprofilaxia, é ainda a melhor estratégia para reduzir essa complicação. Os contraceptivos hormonais e a terapia de reposição hormonal também aumentam o risco de TEV; porém, as mulheres não podem ser privadas dos benefícios dessas terapias, que as tornam mais livres na idade fértil e menos sintomáticas na menopausa. Tanto o uso indiscriminado quanto a proibição imotivada são inadequados. A escolha dos métodos contraceptivos e de reposição deve ser feita por criteriosa seleção, avaliando as contraindicações, os critérios de elegibilidade e a autonomia das pacientes. O presente artigo apresenta uma revisão não sistemática da literatura recente visando a avaliar e resumir a associação entre TEV e situações clínicas peculiares ao sexo feminino.


Abstract In countries that have controlled classic causes of maternal death, such as eclampsia and hemorrhage, venous thromboembolism (VTE) has become the major concern. Prevention of VTE during pregnancy and postpartum by applying guidelines and implementing pharmacoprophylaxis is still the best strategy to reduce occurrence of this complication. Hormonal contraceptives and hormone replacement therapy also increase the risk of VTE, but women cannot be deprived of their benefits, which increase their freedom at childbearing age and reduce their symptoms at menopause. Both indiscriminate use and unmotivated prohibition are inappropriate. Contraceptive and hormone replacement methods should be chosen with care, evaluating the patients' contraindications, eligibility criteria, and autonomy. This article presents a nonsystematic review of recent literature with the aim of evaluating and summarizing the associations between VTE and clinical situations peculiar to women.


Subject(s)
Humans , Female , Pregnancy , Estrogen Replacement Therapy/adverse effects , Contraceptive Agents, Female/adverse effects , Venous Thromboembolism/etiology , Pulmonary Embolism/etiology , Pulmonary Embolism/prevention & control , Thrombosis/etiology , Thrombosis/prevention & control , Venous Thromboembolism/prevention & control
7.
J Thromb Thrombolysis ; 41(4): 636-43, 2016 May.
Article in English | MEDLINE | ID: mdl-26377359

ABSTRACT

Heparin is a glycosaminoglycan with anticoagulant properties and antiinflammatory effects. The discovery of heparin approaches its 100th year and its antiinflammatory properties still draws much attention and anticipation to new possibilities of use and the likelihood of developing heparin-like drugs that lacked the anticoagulation effects. It is known that heparins limit the embolization and the extension of the thrombus, although they do not promote its complete lysis in most cases. The complexity and pleiotropic characteristics of these glycosaminoglycans still challenge science, to the point in which approaches hitherto unusual appear repeatedly in the literature. New indications, accompanied by longtime consecrated others, dismantle the idea of an outdated medication and create high expectations for the near future. The objective of this review is to analyze the pleiotropic effects of heparin and its use in several diseases, highlighting its safety and effectiveness.


Subject(s)
Anti-Inflammatory Agents/history , Anti-Inflammatory Agents/therapeutic use , Anticoagulants/history , Anticoagulants/therapeutic use , Heparin/history , Heparin/therapeutic use , Animals , Female , History, 20th Century , History, 21st Century , Humans , Male
8.
J. vasc. bras ; 14(1): 10-15, Jan-Mar/2015. graf
Article in English | LILACS | ID: lil-744455

ABSTRACT

There is a growing demand for invasive procedures involving the inferior vena cava, in particular for placement of vena cava filters. It is not always easy to identify the more distal renal vein with cavography, for safe release of filters. OBJECTIVES: To determine parameters for the relationships between the renal veins and the infrarenal vena cava and their corresponding vertebral bodies, their relationships with biotype and the occurrence of anatomic variations, the relationships between vertebral bodies and the bifurcation of the common iliac veins and the distance from this bifurcation to the outflow of the more distal renal vein, with reference to placement of vena cava filters. METHODS: A total of 150 abdominal computed tomography scans conducted from October to November 2011 were analyzed and classified according to the biotype exhibited (using Charpy's angle). Scans were performed at MEDIMAGEM and analyzed at the Integrated Vascular Surgery Service, both part of Hospital da Beneficência Portuguesa in São Paulo, Brazil. RESULTS: In 127 of the 150 scans analyzed (84.66%), the more distal renal vein emerged between the first lumbar intervertebral space (L1-L2) and the body of L2, irrespective of patient biotype. Just 23 patients (15.33%) exhibited a more distal renal vein with outflow below the body of L2, i.e. in the projection of the space between L2 and L3. CONCLUSIONS: The radiological correlation between the confluence of the more distal renal vein and vertebral bodies exhibits little variation, irrespective of the biotype of the patient...


Há uma demanda crescente por procedimentos invasivos que abordam a veia cava inferior, especialmente o implante de filtros de veia cava. A identificação da veia renal mais caudal para a liberação segura do filtro nem sempre é fácil durante a cavografia. OBJETIVOS: Estabelecer parâmetros da relação das veias renais e da cava infrarrenal com o corpo vertebral correspondente, sua relação com a biotipologia, presença de variações anatômicas, relação dos corpos vertebrais com a bifurcação das veias ilíacas comuns para a veia cava e distância desta bifurcação até a desembocadura da veia renal mais caudal, visando à implantação de filtro de veia cava. MÉTODOS: Foram analisadas 150 tomografias computadorizadas de abdome no período entre outubro e novembro de 2011, tendo sido agrupadas de acordo com o biotipo apresentado (ângulo de Charpy). As tomografias forem realizadas na MEDIMAGEM e analisadas no Serviço de Cirurgia Vascular Integrada, ambas da Beneficência Portuguesa de São Paulo. RESULTADOS: Dos 150 exames analisados, 127 (84,66%) apresentaram a emergência da veia renal mais caudal desde a projeção do primeiro espaço intervertebral lombar (L1-L2) até o corpo de L2, independentemente do biotipo do paciente. Somente 23 pacientes (15,33%) apresentaram a desembocadura da veia renal mais caudal abaixo do corpo de L2, ou seja, na projeção do espaço entre L2 e L3. CONCLUSÕES: A correlação radiológica da confluência da veia renal mais distal em relação aos corpos vertebrais apresenta pouca variação, independentemente do biotipo do paciente...


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged, 80 and over , Vena Cava Filters/adverse effects , Vena Cava, Superior , Renal Veins , Lumbar Vertebrae/anatomy & histology , Tomography, X-Ray Computed/methods
9.
J. vasc. bras ; 4(4): 383-386, 2005.
Article in Portuguese | LILACS | ID: lil-426548

ABSTRACT

Os autores relatam dois casos de escleroterapia de telangiectasias, as quais complicaram com trombose venosa profunda. O primeiro caso foi confirmado por flebografia, e o segundo, por duplex scan. Um paciente, 8 anos após, apresentou uma tromboflebite espontânea de veia safena parva, que resultou em pesquisa de trombofilia positiva para o Fator V Leiden. A outra paciente teve pesquisa de trombofilia negativa. Os relatos de tromboembolismo relacionado à escleroterapia são escassos na literatura. O objetivo do trabalho é alertar para essa possibilidade, valorizando as queixas de dor e edema após a escleroterapia. Havendo suspeita clínica, o duplex scan deve ser realizado.


Subject(s)
Male , Female , Humans , Sclerotherapy/adverse effects , Sclerotherapy/history , Venous Thrombosis/complications , Venous Thrombosis/diagnosis , Lower Extremity/injuries , Thrombophlebitis/complications , Thrombophlebitis/diagnosis
10.
Cir. vasc. angiol ; 17(7): 226-228, dez. 2001. ilus
Article in Portuguese | LILACS | ID: lil-341943

ABSTRACT

O seroma periprotético é uma das raras complicações dos enxertos vasculares sintáticos. Tem incidência entre 2 a 10 por mil reparos vasculares. E caracterizada como uma coleção líquida que circunda a prótese limitada por uma pseudocápsula.Relatamos o caso de uma paciente que tres meses depois de implante de uma prótese de Dacron em situação fêmoro-femoral cruzada desenvolveu abaulamento supra-púbico volumoso. Foi acompanhada ao longo de quatro anos, sendo finalmente operada, quando ocorreu a correção definitiva do problema...


Subject(s)
Female , Middle Aged , Vascular Diseases/surgery , Blood , Time Factors
11.
Arq. gastroenterol ; 25(n.esp): 17-20, 1988. ilus
Article in English | LILACS | ID: lil-54402

ABSTRACT

O modelo de imobilizaçäo tem sido utilizado para promover a ulceraçäo da mucosa gástrica de ratos. Procedeu-se à determinaçäo da atividade de prostaciclina-simile em fragmentos de estômago de ratos submetidos à estresse de confinamento e em controles. Nossos achados apoiam a idéia de que fatores psicológicos sejam responsáveis pela inflamaçäo da mucosa gástrica mediada por alteraçöes no fluxo sangüíneo da mucosa gástrica, que estäo relacionados com a atividade da prostaciclina


Subject(s)
Rats , Animals , Male , Epoprostenol/metabolism , Gastric Mucosa/physiopathology , Restraint, Physical , Stress, Physiological/physiopathology , Gastric Mucosa/pathology , Platelet Aggregation
12.
Arq. gastroenterol ; 18(2): 54-9, 1981.
Article in Portuguese | LILACS | ID: lil-2918

ABSTRACT

Os autores estudaram em caes, a efetividade da associacao do derivado da nitrofurazona com o polietileno-glicol (NPG), na prevencao de aderencias peritoneais traumaticas (poscirurgicas). A partir dos resultados obtidos, concluem que, a despeito da constituicao do animal, como fator influenciador na capacidade de formacao de aderencias e bridas, a droga, de modo geral, mostrou-se capaz de prevenir o estabelecimento de aderencias fibrosas, bloqueando este processo evolutivo em um estagio fibrinoso, que nao acarreta maiores preocupacoes no que concerne a possibilidade de obstrucao intestinal


Subject(s)
Nitrofurazone , Peritoneum , Polyethylene Glycols
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