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1.
Bol. malariol. salud ambient ; 62(2): 162-170, 2022. tab
Article in Spanish | LILACS, LIVECS | ID: biblio-1378955

ABSTRACT

La enfermedad COVID-19 se caracteriza principalmente por manifestaciones clínicas respiratorias, que pueden ser leves hasta muy severas, sin embargo, hay un grupo de pacientes que pueden cursar con eventos tromboembólicos en cualquier parte del cuerpo. Se realizó una búsqueda de información científica en tres bases de datos PubMed, Scopus y Web of Science, con el objetivo de describir y analizar las potenciales causas de la trombosis mesentérica asociada a la infección por SARS-CoV-2, así como los resultados clínicos, de los pacientes que presentaron y fueron tratados por trombosis mesentérica durante el curso de la enfermedad. Se han reportado diferentes mecanismos fisiopatológicos de eventos tromboembólicos asociados a la COVID-19, dentro de ellos se mencionan el estado de hipercoagulabilidad, una mayor producción de factor Von Willebrand, la expresión de la enzima convertidora de angiotensina 2 en los enterocitos del intestino delgado, que como respuesta a la infección pueden liberar mediadores inflamatorios y el estado de shock presente en las dos terceras partes de los pacientes críticos. Los pacientes con la COVID-19 y sobre todo aquellos que cursan con estadios graves pueden tener diferentes mecanismos que confluyen o exacerban un estado de hipercoagulación, que puede puede afectar cualquier parte del cuerpo como los vasos mesentéricos y llevar a una isquemia gastrointestinal que comprometa su viabilidad y termine en una resección intestinal por necrosis(AU)


COVID-19 disease is mainly characterized by respiratory clinical manifestations, which can be light to very severe; however, there is a group of patients who can present with thromboembolic events in any part of the body. A search of scientific information in three databases, PubMed, Scopus and Web of Science, was carried out with the aim of describing and analyzing the potential causes of mesenteric thrombosis associated with SARS-CoV-2 infection, as well as the clinical outcomes of patients who presented and were treated for mesenteric thrombosis during the course of the disease. Different pathophysiological mechanisms of thromboembolic events associated with COVID-19 have been reported, among them the hyper-coagulable state, an increased production of Von Willebrand factor, the expression of angiotensin-converting enzyme 2 in small intestinal enterocytes, which in response to infection can release inflammatory mediators, and the state of shock present in two thirds of critically ill patients. Patients with COVID-19 and especially those with severe stages may have different mechanisms that converge or exacerbate a state of hyper-coagulation, which can affect any part of the body such as the mesenteric vessels and lead to gastrointestinal ischemia that compromises its viability and ends in intestinal resection due to necrosis(AU)


Subject(s)
Thrombosis/physiopathology , COVID-19/physiopathology , Intestine, Small , Signs and Symptoms , Risk Factors , Ischemia
3.
Rev. pediatr. electrón ; 18(1): 45-49, abr. 2021.
Article in Spanish | LILACS | ID: biblio-1369741

ABSTRACT

La trombosis en recién nacidos (RN) es una patología infrecuente que se asocia principalmente a catéter venoso central. Su presentación clínica puede ser la de un RN asintomático o con sintomatología variable, según la ubicación y tamaño de la trombosis. El diagnóstico generalmente se realiza con ecografía doppler y exámenes específicos según sea la presentación clínica. Con respecto al manejo, actualmente no existe mucha evidencia en RN, pero se suele utilizar trombolíticos/fibrinolíticos extrapolando las investigaciones de adultos. En esta revisión se detalla sobre epidemiología, fisiopatología, factores de riesgo, presentaciones clínicas, diagnóstico y tratamiento. Existe falta de estudios sobre epidemiología nacional y tratamiento en RN, se plantea la necesidad de estos.


Thrombosis in newborns is an infrequent pathology which is mainly associated with a central venous catheter. Its clinical presentation may be that of an asymptomatic newborn or with variable symptoms, depending on the location and size of the thrombosis. The diagnosis is generally made with Doppler ultrasound and specific examinations depending on the clinical presentation. Regarding management, currently there is not much evidence in newborns, but thrombolytics / fibrinolytics are usually used extrapolating from adult investigations. This review details epidemiology, pathophysiology, risk factors, clinical presentations, diagnosis and treatment. There is a lack of studies on national epidemiology and treatment in newborns, the need for these arises.


Subject(s)
Humans , Infant, Newborn , Thrombosis/diagnosis , Thrombosis/drug therapy , Thrombosis/physiopathology , Thrombosis/epidemiology , Risk Factors , Anticoagulants/therapeutic use
4.
Rev. bras. cir. cardiovasc ; 35(5): 757-763, Sept.-Oct. 2020. tab, graf
Article in English | LILACS, SES-SP | ID: biblio-1137320

ABSTRACT

Abstract It has been reported that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection induces endothelial inflammation, therefore facilitating the progression of endothelial and vascular dysfunction in coronavirus disease 2019 (COVID-19) patients. Coronary artery bypass grafting (CABG) involves mainly the use of the saphenous vein (SV) and internal mammary artery as graft material in the stenosed coronary arteries. Unfortunately, graft patency of the SV is low due to endothelial dysfunction and inflammation. We propose that SARS-CoV-2 might cause vascular inflammation, endothelial dysfunction, and thrombosis in coronary artery bypass graft vessels by binding angiotensin-converting enzyme 2 receptor. Therefore, in this Special Article, we consider the potential influence of COVID-19 on the patency rates of coronary artery bypass graft vessels, mainly with reference to the SV. Moreover, we discuss the technique of SV graft harvesting and the therapeutic potential of focusing on endothelial dysfunction, vascular inflammation, and thrombosis for protecting coronary artery bypass grafts in COVID-19 infected CABG patients.


Subject(s)
Humans , Vascular Patency , Coronary Artery Bypass , Coronavirus Infections/complications , Graft Occlusion, Vascular/virology , Saphenous Vein/surgery , Thrombosis/physiopathology , Endothelium, Vascular/physiopathology , Treatment Outcome , Betacoronavirus , Inflammation/physiopathology
5.
Bol. méd. Hosp. Infant. Méx ; 77(4): 178-185, Jul.-Aug. 2020. tab, graf
Article in Spanish | LILACS | ID: biblio-1131974

ABSTRACT

Resumen Introducción: Se ha demostrado la utilidad del estudio ecocardiográfico en las enfermedades que afectan a los neonatos en estado crítico, por lo que se debe capacitar al neonatólogo para la toma y la interpretación de variables hemodinámicas que apoyen la toma de decisiones. El objetivo de este estudio fue describir los resultados del programa de ecocardiografía funcional neonatal y comparar las variables clínicas y hemodinámicas entre sobrevivientes y no sobrevivientes. Métodos: Durante un periodo de 2 años se realizó un estudio observacional, transversal y comparativo en neonatos que fueron evaluados con ecocardiografía funcional neonatal por alteraciones hemodinámicas del conducto arterioso persistente, hipertensión pulmonar aguda y crónica, estado de choque y búsqueda de trombos y vegetaciones. Se evaluaron parámetros de funcionalidad de los ventrículos derecho e izquierdo, presión pulmonar y subrogados de sobrecarga pulmonar. Se realizó un análisis comparativo (U de Mann Whitney y Χ2). De acuerdo con los resultados, se emitieron recomendaciones para el inicio, el ajuste o el retiro de fármacos vasoactivos. Resultados: Se realizaron 269 estudios en 119 neonatos (64.7% prematuros, mortalidad del 15%) atendidos por hipertensión pulmonar aguda (38%), conducto arterioso persistente (27%), choque (19%), hipertensión pulmonar crónica (14%) o búsqueda de trombos (2%). Se recomendó cambiar el manejo en el 45% de los estudios. El grupo de no sobrevivientes presentó diferencias significativas en los parámetros de función sistólica del ventrículo derecho y aumento de su poscarga. Conclusiones: La causa principal de la evaluación con ecocardiografía funcional neonatal fue la hipertensión pulmonar. De forma global, se recomendó un ajuste farmacológico en el 45% de los casos.


Abstract Background: Echocardiography is useful in the group of comorbidities of critically ill newborns. The targeted neonatal echocardiography program trains neonatologists for acquiring and interpreting hemodynamic variables to support decision making. This study aimed to describe the results of the functional echocardiography program (fNE) and compare clinical and hemodynamic variables between survivors and non-survivors. Methods: Observational, cross-sectional, and comparative study of neonates that received a fNE evaluation for hemodynamic disturbances related to patent ductus arteriosus (PDA), acute and chronic pulmonary hypertension (aPH, cPH), state of shock and thrombus/vegetations surveillance for two years. Functional parameters of the right and left ventricle, pulmonary pressure, and surrogates of pulmonary over circulation were assessed. Comparative analysis with U Mann Whitney test and Χ2 was performed. Based on the results, recommendations to start, adjust, or withdraw vasoactive medications were issued. Results: Of 269 studies on 119 neonates (65% premature, 15% mortality), the reasons for consultation were aPH (38%), PDA (27%), shock (19%), cPH (14%), and thrombus surveillance (2%). A change in management was recommended on 45% of studies. Non-survivors presented significant differences in the right ventricular (RV) systolic performance and an increased right ventricular afterload. Conclusions: The main indication for fNE was pulmonary hypertension. A pharmacological adjustment was recommended on 45% of the cases.


Subject(s)
Female , Humans , Infant , Infant, Newborn , Male , Shock/diagnostic imaging , Thrombosis/diagnostic imaging , Echocardiography , Ductus Arteriosus, Patent/diagnostic imaging , Heart Diseases/diagnostic imaging , Hypertension, Pulmonary/diagnostic imaging , Shock/physiopathology , Thrombosis/physiopathology , Infant, Premature , Echocardiography/statistics & numerical data , Program Evaluation , Intensive Care Units, Neonatal , Infant Mortality , Cross-Sectional Studies , Ventricular Function, Right , Statistics, Nonparametric , Incidental Findings , Ductus Arteriosus, Patent/physiopathology , Tertiary Care Centers , Heart Diseases/physiopathology , Hospitals, Pediatric , Hypertension, Pulmonary/physiopathology
8.
Rev. chil. reumatol ; 36(4): 120-124, 2020. tab
Article in Spanish | LILACS | ID: biblio-1282555

ABSTRACT

La vida del mundo cambió como la conocíamos, desde diciembre de 2019, por una nueva pandemia viral, el "Coronavirus 2". Virus de alta contagiosidad y gravedad por el Síndrome Respiratorio Agudo Severo (SARS CoV-2) provocando alta morbimortalidad, desbordado las Unidades de Cuidados Intensivos del mundo, para atender a estos pacientes cuyo cuadro es primariamente respiratorio. Actualmente, además se enfrenta a una segunda amenaza, el aumento sustancial en comparación a otros pacientes hospitalizados (no COVID-19) de las complicaciones tromboembólicas.Esta publicación pretende realizar una revisión de la información actualizada disponible respecto a la epidemiología, fisiopatología y manejo de la enfermedad tromboembólica en pacientes con COVID-19 hospitalizados.


The life of the world changed as we knew it, since december 2019, due to a new viral pandemic, the "Coronavirus 2". Virus of high contagiousness and severity due to Severe Acute Respiratory Syndrome (SARS CoV-2) causing high morbidity and mortality, overwhelmed the Intensive Care Units of the world, to care for these patients whose primarily respiratory symptoms. Currently, it also faces a second threat, the substantial increase compared to other hospitalized patients (not COVID-19) of thromboembolic complications.This publication aims to review the updated information available regarding the epidemiology, pathophysiology, and management of thromboembolic disease in hospitalized COVID-19 patients.


Subject(s)
Humans , Thrombosis/drug therapy , COVID-19/drug therapy , Anticoagulants/therapeutic use , Thrombosis/physiopathology , Thrombosis/blood , Blood Coagulation/drug effects , Disseminated Intravascular Coagulation , COVID-19/complications , COVID-19/blood
9.
J. vasc. bras ; 17(3)jul.-set. 2018. tab
Article in Portuguese | LILACS | ID: biblio-915855

ABSTRACT

Background: Adequate flow through a newly created arteriovenous fistula depends on multiple characteristics of the vessels and patient comorbidities. Several studies have related preoperative findings to failure, but few have analyzed the influence of intraoperative findings. Objectives: To evaluate the predictive value of intraoperative findings on the immediate outcome of radial-cephalic arteriovenous wrist fistulas (RCAVF) by collecting data that are easily measured intraoperatively. Methods: We designed a cross-sectional study, in which a single surgeon performed 101 RCAVF in 100 patients at a single center. We analyzed the immediate postoperative flow, assessed by thrill intensity immediately after fistula creation, against patient demographics and intraoperative data. The following variables were analyzed: age, sex, comorbidities, length of vein visible at preoperative examination, macroscopic arterial calcification, maximum vein diameter, and length of stenosis-free vein, measured by cannulation with a urethral catheter during the procedure. The chi-square test was used both to eliminate possible bias introduced by side of venous access (left or right), and to determine predictive values of immediate thrill. Results: Side of access was not associated with any significant differences in variables. Absence of macroscopic arterial calcification, successful venous catheterization using a 6 French catheter or larger, and ability to advance it more than 10 centimeters along the lumen of the proximal vein were correlated with adequate immediate postoperative thrill (p = 0.004, p < 0.001, and p = 0.005, respectively). Conclusions: In this series of 101 RCAVF, both the diameter of the catheter and its progress through the proximal vein and also absence of arterial calcification had positive predictive value for achieving adequate immediate thrill after vascular access construction


O fluxo adequado de uma fístula arteriovenosa recém-confeccionada depende de múltiplas características dos vasos, bem como de comorbidades do paciente. Diversos estudos associam achados pré-operatórios e suas relações à falha do acesso, mas poucos analisam a influência dos achados encontrados no intraoperatório. Objetivos: Avaliar o valor preditivo desses achados no fluxo imediato de fístulas arteriovenosas radiocefálicas de punho (FAVRCPs) para hemodiálise através de coleta de dados facilmente mensuráveis do intraoperatório. Métodos: Um único cirurgião realizou 101 FAVRCPs em 100 pacientes, em um único centro. Analisou-se o fluxo do pós-operatório imediato através da intensidade do frêmito imediatamente após a confecção do acesso, e os resultados foram comparados com dados demográficos e achados intraoperatórios. As variáveis analisadas foram sexo, idade, comorbidades, extensão da veia visível ao exame físico, presença de calcificação arterial macroscópica, diâmetro venoso máximo e extensão de veia livre de estenose, avaliadas através da cateterização venosa com sonda uretral durante o procedimento. O teste de qui-quadrado foi utilizado tanto para excluir um possível viés de confusão pelo lado do acesso como para avaliar o valor preditivo das variáveis na intensidade do frêmito. Resultados: Não foi identificada diferença significativa nas variáveis segundo o lado do acesso. A ausência de calcificação arterial, a possibilidade de cateterização venosa com sonda de 6 French ou maior, e a sua progressão por mais de 10 cm através do lúmen da veia proximal tiveram correlação com frêmito imediato adequado ao fim do procedimento (p = 0,004, p < 0,001 e p = 0,005, respectivamente). Conclusões: Nesta série de 101 FAVRCPs, o diâmetro e a progressão de cateter 6 French ou maior através da veia proximal e a ausência de calcificação arterial apresentaram valor preditivo positivo na obtenção de frêmito imediato adequado de FAVRCP para hemodiálise


Subject(s)
Humans , Male , Female , Arteriovenous Fistula , Intraoperative Care/adverse effects , Intraoperative Care/methods , Predictive Value of Tests , Renal Dialysis , Wrist , Arteriovenous Shunt, Surgical , Catheters, Indwelling , Cohort Studies , Risk Factors , Data Interpretation, Statistical , Thrombosis/etiology , Thrombosis/physiopathology , Upper Extremity
11.
Anest. analg. reanim ; 27(2): 3-3, dic. 2014. ilus, tab
Article in Spanish | LILACS | ID: lil-754114

ABSTRACT

En los últimos años se ha producido un incremento de la práctica de la anestesia regional en pacientes que reciben fármacos que afectan el sistema fisiológico de la coagulación. La posibilidad de producirse un hematoma espinal, luego de una punción neuroaxial, en este tipo de pacientes, intranquiliza al médico anestesista. Por lo tanto, es indispensable que el médico anestesista conozca los mecanismos de acción de los diferentes anticoagulantes, sus propiedades farmacológicas y farmacocinéticas para poder así definir el intervalo entre la administración de los fármacos anticoagulantes y el bloqueo neuroaxial, la retirada del catéter y el reinicio de la anticoagulación permitiendo asociar la anestesia regional y la anticoagulación de forma segura para el paciente¹. Este trabajo tiene como objetivo principal realizar una revisión de los nuevos fármacos anticoagulantes y analizar las recomendaciones existentes como para poder hacer un uso racional y seguro en nuestra práctica diaria.


New anticoagulants and regional anesthesia In recent years there has been an increase in the practice of regional anesthesia in patients receiving drugs affecting the physiological coagulation system. The possibility of a spinal hematoma occurs after neuraxial puncture in these patients, uneasy the anesthesiologist. Therefore, it is essential that the anesthesiologist know the mechanism of action of different anticoagulants, their pharmacological and pharmacokinetic properties to well define the interval between administration of anticoagulants and neuraxial blockade, catheter removal and resetting anticoagulation allowing associate regional anesthesia and anticoagulation safely for patient1. This work has as main objective to carry out a review of the new anticoagulant drugs and analyze existing recommendations as to make rational and safe use in our daily practice.


Subject(s)
Humans , Antithrombins/pharmacology , Factor Xa Inhibitors/pharmacology , Rivaroxaban/pharmacology , Anesthesia, Conduction , Anticoagulants/therapeutic use , Anticoagulants/pharmacokinetics , Thrombosis/physiopathology , Hemostasis/physiology
12.
Rev. bras. cardiol. (Impr.) ; 27(5): 349-355, set.-out. 2014. tab
Article in Portuguese | LILACS | ID: lil-742406

ABSTRACT

As doenças cardiovasculares representam a principal causa de mortalidade e incapacidade no Brasil e no mundo. O infarto agudo do miocárdio (IAM) é uma das afecções coronarianas mais comuns, e reflete a morte dos cardiomiócitos causada por um desequilíbrio entre a oferta e demanda de nutrientes ao tecido, consequente à obstrução do fluxo coronariano,podendo ser transitório ou permanente. Com base nessas informações, foi realizada revisão da literatura em bancos de bases bibliográficas e acervos de livros, objetivando um estudo das alterações morfológicas do IAM e as variações morfológicas que favorecem o acometimento dessa doença. Observa-se que há vários trabalhos relacionados ao assunto, porém poucos estão relacionados às alterações morfofuncionais do sistema cardiovascular. São encontrados estudos que relatam a melhora da função cardíaca, remodelamento cardíaco e redução das placas de ateroma.


Cardiovascular diseases are the leading cause of mortality and disability in Brazil and worldwide, with acute myocardial infarction (AMI) being one of the most common coronary diseases. This reflects cardiac myocyte death caused by an imbalance between the supply and demand of nutrients to the tissue caused by obstruction of the coronary flow, which may be atransient or permanent condition. Based on this information, a review of the literature was conducted in bibliographical databases and book collections,providing input for a study of morphological changes in AMI and morphological variations that may lead to the appearance of this pathology. There a reseveral works on this subject, although few explore morpho-functional alterations to the cardiovascular system. Some studies reported improved cardiac function and remodeling, together with a decrease in atherosclerotic plaque, among patients undergoing cardiac rehabilitation.


Subject(s)
Humans , Exercise , Myocardial Infarction/physiopathology , Myocardial Infarction/mortality , Rehabilitation/methods , Heart Ventricles/anatomy & histology , Anatomy , Coronary Artery Disease/physiopathology , Coronary Artery Disease/mortality , Risk Factors , Ischemia/complications , Plaque, Atherosclerotic/complications , Thrombosis/complications , Thrombosis/physiopathology , Coronary Vessels/pathology , Heart Atria/physiopathology
13.
Rev. bras. cardiol. invasiva ; 22(2): 131-136, Apr-Jun/2014. tab
Article in Portuguese | LILACS | ID: lil-722247

ABSTRACT

Introdução: No contexto do infarto agudo do miocárdio, o diabetes mellitus está associado à maior mortalidade. O objetivo deste estudo foi avaliar se existem, entre os diabéticos, peculiaridades no processo de aterotrombose que poderiam estar implicadas em maior risco para tal desfecho. Métodos: Estudo piloto, proveniente de coorte de pacientes com diagnóstico de infarto agudo do miocárdio com elevação do segmento ST submetidos à intervenção coronária percutânea primária e à tromboaspiração. Foram estudadas variáveis clínico-laboratoriais de cada caso. Os trombos foram analisados quanto às características histopatológicas e às expressões imuno-histoquímicas de CD34, CD61 e fator VIII. Resultados: Foram incluídos os primeiros dez pacientes portadores de diabetes mellitus com material disponível para análise, pareados por idade, sexo e tempo de evolução do infarto com dez pacientes sem diabetes mellitus. Não houve associação significativa entre as expressões imuno-histoquímicas de CD34, CD61 e fator VIII com relação às variáveis histopatológicas, laboratoriais e clínicas estudadas, inclusive com relação à presença de diabetes mellitus. Conclusões: Em análise preliminar, não foi possível demonstrar diferença significativa quanto à expressão da atividade de células endoteliais, da função plaquetária e da ativação da cascata de coagulação entre trombos de pacientes com e sem o diagnóstico de diabetes mellitus submetidos à intervenção coronariana primária...


Background: Diabetes mellitus is associated with increased mortality rates in the setting of acute myocardial infarction. The aim of this study was to evaluate whether there are peculiarities in the atherothrombotic process that might be implicated in increased risk for this outcome in patients with diabetes. Methods: Pilot study in a cohort of patients with ST-elevation acute myocardial infarction undergoing primary percutaneous coronary intervention and aspiration thrombectomy. Clinical and laboratory variables were evaluated in all of the cases. Thrombi were analyzed for histopathological features as well as immunohistochemical expression of CD34, CD61 and factor VIII. Results: Our sample included the first ten diabetic patients with material available for analysis, who were matched according to age, gender and time elapsed since myocardial infarction with ten patients without diabetes. There was no significant association between the immunohistochemical expression of CD34, CD61 and factor VIII with other histopathological, clinical and laboratory variables, including the presence of diabetes mellitus. Conclusions: In this preliminary analysis, it was not possible to demonstrate any significant difference in the expression of endothelial cell activity, platelet function and activation of the coagulation cascade between thrombi of patients with and without diabetes undergoing primary coronary intervention...


Subject(s)
Humans , Male , Female , /metabolism , Diabetes Mellitus , Immunohistochemistry , Myocardial Infarction/diagnosis , Myocardial Infarction/mortality , /metabolism , Thrombosis/physiopathology , Platelet Aggregation/immunology , Coronary Artery Disease/physiopathology , Endothelium/abnormalities , Heparin/administration & dosage , Percutaneous Coronary Intervention/methods , Data Interpretation, Statistical
15.
Rev. Hosp. Clin. Univ. Chile ; 21(2): 124-127, 2010. ilus
Article in Spanish | LILACS | ID: lil-620976

ABSTRACT

Phlegmasia Caerulea Dolens is a rare complication of deep vein thrombosis. It presents with a sudden onset of pain, swelling, discoloration and arterial compromise of the affected limb. There’s usually history of prothrombotic events such as malignancy, femoral vein catheterism, antiphospholipid syndrome, recent surgery, pregnancy, etc. Left without treatment, it can evolvein to gangrene, septic shock and death. Diagnosis usually only requires clinical appreciation.Confirmation can be done with ultrasonographic studies with doppler. Treatment can be both medical and surgically based. Medical therapy can be done with heparin and elevation of the affected limb or the use of thrombolytic, whilst surgical therapy can be either venous thrombectomy or amputation. We present the case of a 57-year old smoker, diabetic, and with systemic lupus erythematosus history female patient, that goes to the emergency room with sudden left leg pain, with cyanosis and absence of distal pulses. Besides she presented with lower respiratory symptoms. Diagnosis was confirmed with ultrasound and CT pulmonary angiography was performed showing pulmonary embolism. Medical treatment was initiated with good response.


Subject(s)
Humans , Male , Adult , Female , Thrombosis/classification , Thrombosis/complications , Thrombosis/diagnosis , Thrombosis/physiopathology , Thrombosis/pathology
17.
Acta bioquím. clín. latinoam ; 40(4): 483-489, dic. 2006. tab, graf
Article in Spanish | LILACS | ID: lil-508479

ABSTRACT

El objetivo del presente estudio fue determinar los niveles de factor tisular (FT) y procoagulante del cáncer (PC) en pacientes con enfermedades neoplásicas para intentar establecer: 1) si existe asociación entre la presencia de estos marcadores y el origen del tumor; 2) si los niveles de estas proteínas procoagulantes se correlacionan con los estadíos I/II o III/IV de la enfermedad; 3) si los tratamientos con quimioterapia modifican los niveles séricos del FT y PC y, finalmente 4) evaluar si estos procoagulantes podrían comportarse como marcadores predictivos en el desarrollo de trombosis. Se incluyeron 61 pacientes con diferentes tipos de cáncer: pulmón (n=14), mama (n=19), digestivo (n=13), y génitourinario (n=12) y controles normales (n=20). Los resultados demostraron una sensibilidad y especificidad del 87,9% y 85%, respectivamente, para el PC y del 72,4% y 100% para el FT. Los pacientes con cáncer génitourinario presentaron los valores más altos de ambos procoagulantes coicidiendo con la mayor prevalencia de trombosis objetiva clínica y radiológicamente. Ninguno de los procoagulantes evaluados permitió difenciar estadío I-II de III-IV de la enfermedad. Por otra parte, el tratamiento con quioterapia no modificó con significancia estadística, los niveles de ambos procoagulantes. Un seguimiento clínico y de laboratorio en función del tiempo y del tratamiento sería importante para establecer el valor pronóstico de los niveles de estos procoagulantes y su propensión a desarrollar trombosis en pacientes con cáncer.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Blood Coagulation Factors , Thrombosis , Biomarkers , Gastrointestinal Neoplasms/complications , Lung Neoplasms/complications , Urogenital Neoplasms/complications , Breast Neoplasms/complications , Thrombosis/complications , Thrombosis/physiopathology
18.
Rev. Assoc. Med. Bras. (1992) ; 51(4): 233-236, jul.-ago. 2005. tab
Article in Portuguese | LILACS | ID: lil-411212

ABSTRACT

OBJETIVO: Comparar os dados obtidos pela ultra-sonografia com doppler no pré-operatório de esquistossomóticos submetidos à desconexão ázigo-portal com esplenectomia (DAPE), calculando o índice de congestão portal, e sua correlacão com a trombose portal no pós-operatório. MÉTODOS: Foram estudados 65 pacientes submetidos à DAPE por hipertensão portal esquistossomótica com antecedente de hemorragia digestiva, divididos em dois grupos: Grupo A (28 pacientes que não desenvolveram trombose portal pós-operatória) e Grupo B (37 pacientes com trombose portal no pós-operatório). Analisaram-se através de ultra-sonografia com doppler no pré-operatório os seguintes parâmetros da veia porta: diâmetro, área, velocidade média de fluxo do sangue, fluxo de sangue, e estabeleceu-se o índice de congestão portal. RESULTADOS: O diâmetro, área e o fluxo da veia porta foram maiores no grupo B (média de 1,52 cm; 1,77 cmy e 2533,12 ml/min) em relacão ao grupo A (média de 1,33 cm; 1,44 cmy e 1609,03 ml/min) com p = 0,03; 0,03 e 0,04 respectivamente. O índice de congestão portal não foi estatisticamente significativo na comparacão dos dois grupos (p = 0,07). CONCLUSAO: O índice de congestão portal obtido no pré-operatório através da ultra-sonografia com doppler não se mostrou preditivo de trombose portal no pós-operatório dos doentes estudados.


Subject(s)
Adult , Humans , Male , Female , Azygos Vein/physiopathology , Hypertension, Portal/physiopathology , Portal Vein/physiopathology , Splenectomy/methods , Thrombosis/physiopathology , Analysis of Variance , Blood Flow Velocity , Hypertension, Portal/parasitology , Hypertension, Portal , Postoperative Period , Schistosomiasis mansoni/complications , Schistosomiasis mansoni/physiopathology , Schistosomiasis mansoni , Thrombosis/parasitology , Thrombosis , Ultrasonography, Doppler
19.
REBLAMPA Rev. bras. latinoam. marcapasso arritmia ; 18(1): 5-13, jan.-mar. 2005. ilus
Article in Portuguese | LILACS | ID: lil-406281

ABSTRACT

Como o tratamento farmacológico da insuficiência cardíaca não tem atingido o sucesso esperado em um grande número de pacientes, outras alternativas não farmacológicas foram desenvolvidas neste período, como forma de tratamento destes graves pacientes. Uma delas é relacionada a utilização de suporte circulatório por dispositivos implantáveis, que é o motivo de discussão neste artigo


Subject(s)
Humans , Heart Diseases/physiopathology , Heart, Artificial/history , Heart, Artificial , Heart Failure/complications , Heart Failure/physiopathology , Heart Failure/rehabilitation , Thrombosis/complications , Thrombosis/physiopathology
20.
Rev. bras. cir. cardiovasc ; 20(1): 88-90, Jan.-Mar. 2005.
Article in Portuguese | LILACS | ID: lil-413214

ABSTRACT

Um homem de 64 anos recebeu uma prótese mecânica CarboMedics de 31 mm para refluxo mitral grave. Após quatro dias, o paciente apresentou-se com fadiga e dispnéia em repouso. Estudo do Doppler ecocardiografia transtorácica e transesofágica confirmaram uma disfunção na mobilidade do folheto da válvula protética devido à trombose e uma operação de emergência foi feita. O pós operatório transcorreu sem intercorrências. Este é um caso incomum de disfunção grave devido à trombose de uma prótese mitral mecânica em um paciente tomando anticoagulantes orais e calciparina


Subject(s)
Humans , Male , Aged , Echocardiography/instrumentation , Thrombosis/surgery , Thrombosis/physiopathology , Thrombosis/rehabilitation , Mitral Valve/abnormalities , Mitral Valve/surgery , Mitral Valve Insufficiency/physiopathology
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