Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 5 de 5
Filtrar
Mais filtros










Intervalo de ano de publicação
1.
Interact Cardiovasc Thorac Surg ; 18(5): 539-43, 2014 May.
Artigo em Inglês | MEDLINE | ID: mdl-24491683

RESUMO

OBJECTIVES: The European System for Cardiac Operative Risk Evaluation II (EuroSCORE II) is an updated version of the original EuroSCORE that must be extensively validated. The objective was to prospectively evaluate the efficacy of EuroSCORE II in predicting the immediate results of cardiac surgery in Argentinean centres. METHODS: A prospective consecutive series of 503 adults who underwent cardiac surgery between January 2012 and April 2013 was studied. EuroSCORE II discrimination and accuracy were assessed in the overall cohort and in two surgically defined subgroups: isolated coronary artery bypass graft (CABG) surgery and non-CABG surgery. Additionally, a risk-adjusted cumulative sum control chart analysis was performed. RESULTS: In-hospital overall mortality rate was 4.17%, while the mortality rate predicted by the EuroSCORE II was 3.18% (P = 0.402). Receiver operating characteristic curve analysis demonstrated a good overall (area 0.856) and non-CABG subgroup (area 0.857) discrimination (P = 0.0001), while discrimination in the CABG subgroup was poorer (area 0.794, P = 0.014). The model showed good calibration in predicting in-hospital mortality, both overall (Hosmer-Lemeshow, P = 0.082) and for each subgroup (non-CABG, P = 0.308, and CABG, P = 0.150). CONCLUSIONS: EuroSCORE II reflects a better current surgical performance and offers a new quality standard to evaluate local outcomes. EuroSCORE showed an overall good discriminative capacity and calibration in this local population; nevertheless, the model performed optimally in non-CABG surgery and in highest-risk patients, underestimating in-hospital mortality in lowest-risk cases. The latter finding may be interpreted as an inadequate behaviour of the model, as a poor performance of surgeons or both. Larger prospective studies will elucidate this hypothesis.


Assuntos
Procedimentos Cirúrgicos Cardíacos , Técnicas de Apoio para a Decisão , Adulto , Idoso , Idoso de 80 Anos ou mais , Área Sob a Curva , Argentina , Procedimentos Cirúrgicos Cardíacos/efeitos adversos , Procedimentos Cirúrgicos Cardíacos/mortalidade , Ponte de Artéria Coronária , Feminino , Mortalidade Hospitalar , Hospitais Universitários , Humanos , Masculino , Pessoa de Meia-Idade , Seleção de Pacientes , Complicações Pós-Operatórias/mortalidade , Valor Preditivo dos Testes , Estudos Prospectivos , Curva ROC , Reprodutibilidade dos Testes , Medição de Risco , Fatores de Risco , Resultado do Tratamento
2.
Rev. argent. cardiol ; 81(2): 144-150, abr. 2013. ilus, tab
Artigo em Espanhol | LILACS | ID: lil-694852

RESUMO

Introducción Los pacientes con fibrilación auricular representan un grupo de riesgo para el desarrollo de complicaciones tromboembólicas, con consecuencias devastadoras cuando afectan el sistema nervioso central. El rendimiento de los índices de riesgo para predecir eventos clínicos se ha evaluado en numerosas publicaciones, mientras que su relación con la presencia de trombo en la aurícula izquierda o su orejuela se ha explorado menos. Recientemente se ha propuesto la utilización del índice conocido con el acrónimo CHA2DS2-VASc para la estratificación de riesgo cardioembólico. Objetivo Evaluar la prevalencia de trombo en la aurícula izquierda y su relación con las variables del índice CHA2DS2-VASc y la función sistólica del ventrículo izquierdo en pacientes con fibrilación auricular que serán sometidos a cardioversión eléctrica. Material y métodos Se efectuó un registro prospectivo de los antecedentes clínicos de pacientes con fibrilación auricular de tiempo indeterminado o > 48 horas, a los que se les realizó un eco transesofágico previo a una cardioversión eléctrica. Se analizó la relación de las variables que conforman el índice CHA2DS2-VASc y del puntaje total para predecir trombo en el eco transesofágico. Se evaluó además un modelo que resultó de sumar al CHA2DS2-VASc un puntaje según la función sistólica del ventrículo izquierdo: normal = 0, deterioro leve = 1, moderado = 2, grave = 3. Resultados Se incluyeron 129 pacientes con edad media de 70 ± 12 años, de los cuales 21 (16%) presentaron trombo. Este hallazgo fue más prevalente en pacientes con factores de riesgo, pero alcanzó nivel de significación solo para insuficiencia cardíaca y diabetes. Se observó un incremento progresivo del riesgo de trombo en relación con el CHA2DS2-VASc (3,6 ± 1,6 con trombo vs. 2,7 ± 1 sin trombo; p = 0,024, área bajo la curva ROC = 0,65). La asociación se ve reforzada cuando se incluye la función sistólica del ventrículo izquierdo (p = 0,006, área bajo la curva ROC = 0,69). Un puntaje de CHA2DS2-VASc < 2 no garantizó la ausencia de trombos. Conclusiones El puntaje CHA2DS2-VASc desarrollado para predecir riesgo clínico de fenómenos embólicos también se asocia con la presencia de trombo en pacientes con fibrilación auricular de tiempo indeterminado. El agregado de la función sistólica del ventrículo izquierdo al puntaje total podría mejorar la capacidad predictiva.


Background Patients with atrial fibrillation represent a group of risk for thromboembolic complications, with catastrophic consequences when affecting the central nervous system. The performance of risks scores to predict clinical events has been evaluated by several publications; yet, its correlation with the presence of thrombi in the left atrium or left atrial appendage has been poorly investigated. The use of the CHA2DS2-VASc score has been recently proposed for stratification of throm-boembolic risk. Objective To evaluate the prevalence of left atrial thrombus and its correlation with the components of the CHA2DS2-VASc score and with left ventricular systolic function in patients scheduled for electrical cardioversion. Methods A prospective registry of the medical history of patients with atrial fibrillation of unknown duration or lasting >48 hours, undergoing transesophageal echocardiography before scheduled electrical cardioversion was conducted. The correlation of the components of the CHA2DS2-VASc scores and of the total score with the presence of thrombi in transesophageal echocardiography was analyzed. The result of the sum of the CHA2DS2-VASc score plus a score of left ventricular systolic function (normal = 0, mild dysfunction = 1, moderate dysfunction = 2, severe dysfunction = 3) was also evaluated. Results A total of 129 patients (mean age 70±12 years) were included; 21 (16%) had thrombus. This finding was more prevalent in patients with risk factors, but was only statistically significant for heart failure and diabetes. The risk of thrombus in the LA/LAA progressively increased at higher CHA2DS2-VASc (3.6±1.6 with thrombus vs. 2.7±1 without thrombus; p = 0.024, area under the ROC curve = 0.65). This association was greater when left ventricular systolic function was included (p = 0.006, area under the ROC curve = 0.69). A CHA2DS2-VASc < 2 did not warrant the absence of thrombi.

3.
Rev. argent. cardiol ; 81(2): 144-150, abr. 2013. ilus, tab
Artigo em Espanhol | BINACIS | ID: bin-130735

RESUMO

Introducción Los pacientes con fibrilación auricular representan un grupo de riesgo para el desarrollo de complicaciones tromboembólicas, con consecuencias devastadoras cuando afectan el sistema nervioso central. El rendimiento de los índices de riesgo para predecir eventos clínicos se ha evaluado en numerosas publicaciones, mientras que su relación con la presencia de trombo en la aurícula izquierda o su orejuela se ha explorado menos. Recientemente se ha propuesto la utilización del índice conocido con el acrónimo CHA2DS2-VASc para la estratificación de riesgo cardioembólico. Objetivo Evaluar la prevalencia de trombo en la aurícula izquierda y su relación con las variables del índice CHA2DS2-VASc y la función sistólica del ventrículo izquierdo en pacientes con fibrilación auricular que serán sometidos a cardioversión eléctrica. Material y métodos Se efectuó un registro prospectivo de los antecedentes clínicos de pacientes con fibrilación auricular de tiempo indeterminado o > 48 horas, a los que se les realizó un eco transesofágico previo a una cardioversión eléctrica. Se analizó la relación de las variables que conforman el índice CHA2DS2-VASc y del puntaje total para predecir trombo en el eco transesofágico. Se evaluó además un modelo que resultó de sumar al CHA2DS2-VASc un puntaje según la función sistólica del ventrículo izquierdo: normal = 0, deterioro leve = 1, moderado = 2, grave = 3. Resultados Se incluyeron 129 pacientes con edad media de 70 ± 12 años, de los cuales 21 (16%) presentaron trombo. Este hallazgo fue más prevalente en pacientes con factores de riesgo, pero alcanzó nivel de significación solo para insuficiencia cardíaca y diabetes. Se observó un incremento progresivo del riesgo de trombo en relación con el CHA2DS2-VASc (3,6 ± 1,6 con trombo vs. 2,7 ± 1 sin trombo; p = 0,024, área bajo la curva ROC = 0,65). La asociación se ve reforzada cuando se incluye la función sistólica del ventrículo izquierdo (p = 0,006, área bajo la curva ROC = 0,69). Un puntaje de CHA2DS2-VASc < 2 no garantizó la ausencia de trombos. Conclusiones El puntaje CHA2DS2-VASc desarrollado para predecir riesgo clínico de fenómenos embólicos también se asocia con la presencia de trombo en pacientes con fibrilación auricular de tiempo indeterminado. El agregado de la función sistólica del ventrículo izquierdo al puntaje total podría mejorar la capacidad predictiva.(AU)


Background Patients with atrial fibrillation represent a group of risk for thromboembolic complications, with catastrophic consequences when affecting the central nervous system. The performance of risks scores to predict clinical events has been evaluated by several publications; yet, its correlation with the presence of thrombi in the left atrium or left atrial appendage has been poorly investigated. The use of the CHA2DS2-VASc score has been recently proposed for stratification of throm-boembolic risk. Objective To evaluate the prevalence of left atrial thrombus and its correlation with the components of the CHA2DS2-VASc score and with left ventricular systolic function in patients scheduled for electrical cardioversion. Methods A prospective registry of the medical history of patients with atrial fibrillation of unknown duration or lasting >48 hours, undergoing transesophageal echocardiography before scheduled electrical cardioversion was conducted. The correlation of the components of the CHA2DS2-VASc scores and of the total score with the presence of thrombi in transesophageal echocardiography was analyzed. The result of the sum of the CHA2DS2-VASc score plus a score of left ventricular systolic function (normal = 0, mild dysfunction = 1, moderate dysfunction = 2, severe dysfunction = 3) was also evaluated. Results A total of 129 patients (mean age 70±12 years) were included; 21 (16%) had thrombus. This finding was more prevalent in patients with risk factors, but was only statistically significant for heart failure and diabetes. The risk of thrombus in the LA/LAA progressively increased at higher CHA2DS2-VASc (3.6±1.6 with thrombus vs. 2.7±1 without thrombus; p = 0.024, area under the ROC curve = 0.65). This association was greater when left ventricular systolic function was included (p = 0.006, area under the ROC curve = 0.69). A CHA2DS2-VASc < 2 did not warrant the absence of thrombi.(AU)

4.
Echocardiography ; 28(2): E31-3, 2011 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-21198822

RESUMO

A 74-year-old woman with a history of essential thrombocythemia was admitted to the Coronary Care Unit because of atypical chest pain. The transthoracic echocardiogram showed normal left ventricular (LV) diameter and preserved regional and global systolic function. A pedunculated mobile mass measuring 25 mm × 14 mm was visualized in the LV cavity, attached to the midanterior wall. Because of the typical echocardiographic appearance, a myxoma was suspected. The patient evolved with left hemiparesis and negative T-waves in the electrocardiogram. Left ventriculotomy with excision of the ventricular mass was performed. Histopathological examination revealed an organized thrombus.


Assuntos
Cardiopatias/diagnóstico por imagem , Ventrículos do Coração/diagnóstico por imagem , Trombose/diagnóstico por imagem , Idoso , Diagnóstico Diferencial , Feminino , Neoplasias Cardíacas/diagnóstico por imagem , Humanos , Mixoma/diagnóstico por imagem , Ultrassonografia
5.
Echocardiography ; 19(1): 63-5, 2002 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-11884257

RESUMO

We report an unusual case of blunt traumatic aortic injury in which a mobile thrombus located at the isthmus was the only abnormality detected by transesophageal echocardiography. The case illustrates the high sensitivity of this diagnostic tool in aortic trauma and underscores the possibility of finding infrequent evidence of injury in subtle aortic lesions.


Assuntos
Aorta Torácica/lesões , Ecocardiografia Transesofagiana/métodos , Trombose/diagnóstico por imagem , Ferimentos não Penetrantes/diagnóstico , Acidentes de Trânsito , Adulto , Aspirina/administração & dosagem , Feminino , Seguimentos , Humanos , Medição de Risco , Sensibilidade e Especificidade , Trombose/tratamento farmacológico , Trombose/etiologia , Ferimentos não Penetrantes/complicações
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA
...