Network


Latest external collaboration on country level. Dive into details by clicking on the dots.

Hotspot


Dive into the research topics where Esther Pérez David is active.

Publication


Featured researches published by Esther Pérez David.


Revista Espanola De Cardiologia | 2002

Utilidad clínica de los distintos marcadores biológicos CPK, CPK MB masa, mioglobina y troponina T en una unidad de dolor torácico. ¿Cuándo, cuáles y cómo pedirlos?

Javier Fernández Portales; José A. García Robles; Javier Jiménez Candil; Esther Pérez David; Juan Ramón Rey Blas; Leopoldo Pérez de Isla; Óscar Díaz Castro; Jesús Almendral

Background. The prognostic value of biochemical markers in relation to time since onset of chest pain was evaluated in an emergency room with a chest pain unit. Methods. In a single-center, prospective study we included 321 consecutive patients admitted to the emergency room with suspected unstable angina IIIB and an evolution of less than 12 hours. Blood samples were collected for CPK, CPK MB mass, myoglobin, and cardiac troponin T assays 6, 12, and 18 h after the onset of pain. ROC curve analysis was carried out to compare biochemical markers in terms of cutoff values and time since onset of pain. We determined the relation between prognosis and biochemical markers before and after adjustment for baseline characteristics. Results. CPK mass and myoglobin showed the maximum sensitivity and specificity for new ischemic recurrences 6 hours after the onset of chest pain with laboratory cutoff values. We had to wait 12 h after the onset of pain for troponin T to be useful using the laboratory cutoff value (0.1 ng/ml). A single determination 6 hours after onset of chest pain of cardiac troponin T above 0.04 ng/ml was the most sensitive and specific marker for new ischemic recurrences. Conclusions. A single blood determination of cardiac troponin T 6 hours after the onset of chest pain complete the prognostic stratification in combination with clinical and ECG variables. The best cutoff point of cardiac troponin T, based on univariate and multivariate analysis, was 0.04 ng/ml 6 h after the onset of chest pain.


Revista Espanola De Cardiologia | 2003

Estratificación de riesgo en pacientes con dolor torácico sin ascenso persistente del segmento ST basado en variables clínicas, ECG y bioquímicas: ¿Cuánto tiempo debemos esperar?

Javier Fernández Portales; Fabiola Pérez Reyes; José A. García Robles; Javier Jiménez Candil; Esther Pérez David; Juan Ramón Rey Blas; Leopoldo Pérez de Isla; Óscar Díaz Castro; Jesús Almendral

Introduction. We use clinical, ECG, and biochemical data to stratify risk in patients with chest pain without ST segment elevation. However, the prognostic performance of these studies in relation to time from onset of symptoms is unknown. Patients and method. In a single-center, prospective study, 321 consecutive patients who had been admitted in the emergency room with a suspected acute coronary syndrome without ST segment elevation were included in the study. Blood samples were collected for CK, CK-MB mass, myoglobin, and cardiac troponin T analysis 6, 12 and 18 hours after the onset of pain and other clinical and ECG data were recorded. Univariate and multivariate analysis was used to identify independent prognostic predictors 6 and 12 hours after the onset of chest pain. Results. Five variables were independent predictors of the recurrence of ischemia. The model correctly classified 82% of the patients. Age, history of coronary artery disease, prolonged chest pain at rest in the preceding 15 days, pain, ST-segment changes with pain, and cardiac troponin T in excess of 0.1 ng/m 12 hours after the onset of chest pain were identified by logistic regression. A similar model was analyzed at 6 hours, after changing the cutoff point for cardiac troponin T. Cardiac troponin T was considered positive with values of 0.04 ng/ml 6 hours after the onset of chest pain. Conclusions. More than 80% of the patients admitted to the emergency room with chest pain without ST segment elevation can be correctly classified for new ischemic recurrences using clinical, ECG, and biochemical parameters 6 hours after the onset of pain.


Revista Espanola De Cardiologia | 1999

Viabilidad y seguridad del empleo de la ecografía intracoronaria. Experiencia de un centro

Ramón López-Palop; Javier Botas; Jaime Elízaga; Eulogio García; Juan R. Rey; Javier Soriano; Manuel Abeytua; María Eugenia Fuentes; Esther Pérez David; Juan L. Delcán

Introduccion y objetivos. La ecografia intracoronaria presenta numerosas ventajas en la cuantificacion y caracterizacion de las lesiones coronarias con respecto a la angiografia. Sin embargo, estudios previos han senalado entre un 3,5 y un 11% de complicaciones y un 10–30% de lesiones no abordables mediante esta tecnica. El objetivo de este trabajo es estudiar la incidencia actual de complicaciones con los nuevos modelos de sondas y la viabilidad de la realizacion de esta prueba en un grupo de pacientes consecutivos. Material y metodos. Se analizaron la viabilidad de la exploracion, como el porcentaje de exitos respecto a intentos, y las complicaciones aparecidas en todos los procedimientos en los que se intento utilizar la ultrasonografia intracoronaria entre julio de 1994 y febrero de 1996. Las complicaciones fueron divididas en relacionadas, dudosamente relacionadas y no relacionadas con el estudio ecografico. Resultados Se estudiaron 239 vasos en 209 procedimientos (el 74% intervencionistas) y 139 pacientes. Se logro realizar el estudio ultrasonico en el 100% de los estudios diagnosticos y en el 96% de los intervencionistas. Existieron complicaciones mayores y menores en el 2,4 y en el 10,5% de los procedimientos, respectivamente. Ninguna complicacion mayor estuvo relacionada con la exploracion con ultrasonidos. Tres pacientes presentaron complicaciones menores relacionadas con el dispositivo (1,4%), siempre en estudios basales de procedimientos intervencionistas. Conclusiones La ecografia intracoronaria es una tecnica segura y factible en la gran mayoria de los procedimientos. El menor tamano de las sondas y la mayor experiencia de los operadores han disminuido notablemente las complicaciones, especialmente la mas frecuente hasta ahora, el espasmo coronario. Las complicaciones se asocian a estudios basales de procedimientos intervencionistas y a una menor experiencia del operador.


European Heart Journal | 2009

Endocardial fibroelastosis in dilated cardiomyopathy in a 28-year-old transplant recipient

Esther Pérez David; Raquel Prieto Arévalo; Francisco Fernández-Avilés

A 28-year-old male was admitted to our hospital due to heart failure secondary to dilated cardiomyopathy. His first heart failure episode occurred when he was 8 months old, triggered by a respiratory infection, with good response to medical treatment. He was diagnosed dilated cardiomyopathy. Afterwards, he remained asymptomatic until he reached the adult age. The patient referred severe functional capacity impairment in the last 3 months. A …


Revista Espanola De Cardiologia | 2004

Ecocardiografía de contraste en el infarto agudo de miocardio: la importancia de estudiar la microcirculación coronaria

Esther Pérez David; Miguel Angel García Fernández

22 Hace 15 años, la introducción del tratamiento de reperfusión en el infarto agudo de miocardio (IAM) revolucionó el mundo de la cardiología. Numerosos ensayos clínicos demostraron que la recanalización de la arteria coronaria ocluida mejoraba significativamente el pronóstico del paciente con IAM a corto y a largo plazo1. Sólo a principios de los años noventa comenzó a reconocerse el hecho de que la restauración de un flujo normal en la arteria coronaria epicárdica no implicaba la normalización de la perfusión miocárdica ya que, tanto por la presencia de isquemia prolongada como por lesión secundaria al tratamiento de reperfusión, podía persistir disfunción microvascular e incluso obstrucción de los capilares miocárdicos, a pesar de que la arteria epicárdica origen del infarto estuviera abierta. Se comprobaba así la existencia clínica del fenómeno de no reflujo, que ya se había descrito mucho antes en modelos experimentales2. También se demostró que su aparición tenía un importante valor pronóstico, de tal manera que los pacientes con lesión microvascular tenían una mayor incidencia de complicaciones y de remodelado adverso del ventrículo izquierdo3. Por esta razón, se ha ido concediendo importancia cada vez mayor al estudio de la microcirculación miocárdica en el IAM, y diversas técnicas se han desarrollado con este fin. El grado de resolución de la elevación del segmento ST después del tratamiento de reperfusión ha demostrado ser un método sencillo de gran valor, que presenta una buena correlación con otras técnicas para la valoración de la perfusión y es un buen predictor de la recuperación funcional4. El resultado angiográfico final tras la angioplastia primaria, ED I TO R I A L E S


Revista Espanola De Cardiologia | 1997

El «síndrome» de obstrucción medioventricular con aneurisma apical en la miocardiopatía hipertrófica: presentación de un caso

Esteban González Torrecilla; Juan Fernández-Yáñez; Eulogio García; Esther Pérez David; Miguel Angel García Fernández; Juan L. Delcán

Presentamos el caso de una paciente de 81 anosde edad con miocardiopatia hipertrofica y obstruccionmedioventricular con aneurisma apical parcialmentediscinetico. La clinica de presentacionfue un infarto agudo de miocardio lateral con episodiosde taquicardia ventricular sostenida y uniformey una auscultacion cardiaca anodina. El estudiode perfusion isotopico en reposo sugirio uninfarto antiguo apical en ausencia de lesiones coronarias.En el ECG se observo una elevacion persistentedel segmento ST en derivaciones anteroapicalessin desarrollo de onda Q al alta. El caso esun raro ejemplo, en una anciana previamente asintomatica,de un sindrome diferenciado en el amplioespectro clinico de la miocardiopatia hipertrofica.


computing in cardiology conference | 2007

Cardiac motion analysis from magnetic resonance imaging: Cine magnetic resonance versus tagged magnetic resonance

A Bajo; Maria J. Ledesma-Carbayo; C.S. Marta; Esther Pérez David; Miguel A. García-Fernández; M. Desco; Andrés Santos

The objective of this work is to compare the results obtained from the motion analysis of tagged vs. CINE MR sequences when using spatio-temporal non-rigid registration techniques based on pixel intensity. Those techniques have been previously validated on tagged MR images. Moreover, registration algorithms have been applied to MR CINE sequences to obtain radial displacement and strain parameters demonstrating its usefulness to quantify regional myocardial function. Tagged and CINE MR short axis sequences from 10 subjects were examined. Four segments were manually selected in both the tagged MR and CINE sequences. Automatic estimation of the myocardial motion field was performed using a consecutive non-rigid registration algorithm based on a semilocal Bspline parametric model. Finally, a statistical analysis was applied to compare the systolic displacement and strain estimations from both types of sequences. An important discrepancy between results obtained from tagged MR based strain analysis and CINE MR has been found.


Journal of Cardiovascular Magnetic Resonance | 2011

Usefulness of myocardial circunferential strain in acute myocardial infarction for prediction of contractile function recovery: a MRI myocardial tagging study

Esther Pérez David; Loreto Bravo Calero; Maria J. Ledesma-Carbayo; Jose L. Rubio; Javier Bermejo; Francisco Fernández-Avilés; Javier Lafuente

Background In patients (p) with acute myocardial infarction (AMI), quantitation of myocardial regional function may be useful to differentiate between stunned and necrotic myocardium and to predict ventricular function recovery during follow-up. Different parameters exist to evaluate regional myocardial function such as circunferential /radial strain and displacement. The purpose of this study is to determine the most useful parameter for prediction of contractile function recovery obtained from tagged MRI.


European Heart Journal | 2010

Coronary sinus dilatation in an elderly patient with dyspnoea

Esther Pérez David; Jose Juan Gomez de Diego; Francisco Fernández Avilés

A 75-year-old man was referred to our institution due to dyspnoea on exertion in the past 2 years. He had been previously healthy and was only being treated for arterial hypertension. During physical examination, a continuing murmur was heard over the left sternal border. ECG showed incomplete right bundle branch block. Echocardiography ( Panels A and …


European Heart Journal | 2008

An unusual cause of cardiomegaly

Esther Pérez David; Julio Osende; Francisco Fernández-Avilés

A 38-year-old male patient was referred to our institution to study the origin of global cardiomegaly observed in a chest radiograph ( Panel A ). No remarkable data were reported in his medical record excepting hip fracture at the age of 3 after a road traffic accident, which required surgery. He was asymptomatic and …

Collaboration


Dive into the Esther Pérez David's collaboration.

Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Javier Bermejo Thomas

Technical University of Madrid

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Pablo Ávila Alonso

Complutense University of Madrid

View shared research outputs
Top Co-Authors

Avatar
Top Co-Authors

Avatar
Top Co-Authors

Avatar

Alicia Barrio

Complutense University of Madrid

View shared research outputs
Researchain Logo
Decentralizing Knowledge