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1.
Rev. esp. cardiol. (Ed. impr.) ; 65(6): 517-524, jun. 2012.
Article in Spanish | IBECS | ID: ibc-100252

ABSTRACT

Introducción y objetivos. Evaluar la capacidad de la tomografía computarizada con multidetectores en el diagnóstico de la disfunción ventricular izquierda de origen coronario y valorar su exactitud diagnóstica comparándola con la combinación de coronariografía invasiva y resonancia magnética. Métodos. Se estudió a 40 pacientes consecutivos con disfunción ventricular izquierda de origen no filiado mediante coronariografía invasiva y resonancia con contraste. A todos ellos se les realizó además un estudio de tomografía computarizada con multidetectores incluyendo presencia de calcio coronario y su cuantificación, coronariografía y valoración tisular del miocardio. Resultados. La sensibilidad y la especificidad de la presencia de calcio coronario para identificar la disfunción ventricular izquierda de origen coronario fueron del 100 y el 31% respectivamente. Si se considera un score de calcio por Agatston>100, la especificidad sube al 58% manteniendo la sensibilidad del 100%. Los valores de sensibilidad y especificidad de la coronariografía por tomografía computarizada con multidetectores fueron del 100 y el 96% respectivamente; para la identificación de áreas de necrosis en la adquisición precoz, del 57 y el 100% y en la adquisición tardía, del 84 y el 96%. Para identificar a los pacientes coronarios con necrosis, la sensibilidad y la especificidad fueron del 92 y el 100% respectivamente. Conclusiones. De todas las herramientas diagnósticas disponibles en tomografía computarizada con multidetectores, la coronariografía es la que muestra mayor exactitud diagnóstica para determinar el origen coronario de la disfunción ventricular. La combinación del estudio coronariográfico y el estudio tisular del miocardio tras el contraste permite obtener en un solo examen información similar a la de la combinación de cateterismo y resonancia con contraste (AU)


Introduction and objectives. To evaluate the capability of multidetector computed tomography to diagnose the coronary etiology of left ventricular dysfunction compared with using invasive coronary angiography and magnetic resonance. Methods. Forty consecutive patients with left ventricular dysfunction of uncertain etiology underwent invasive coronary angiography and contrast magnetic resonance. All patients were evaluated with multidetector computed tomography including coronary calcium presence and score, noninvasive coronary angiography, and myocardial tissue assessment. Results. The sensitivity and specificity of the presence of coronary calcium to identify left ventricular dysfunction was 100% and 31%, respectively. If an Agatston calcium score of >100 is taken, specificity increases to 58% with sensitivity still 100%. Sensitivity and specificity for coronary angiography by multidetector computed tomography was 100% and 96%, respectively; for identifying necrosis in contrast acquisition it was 57% and 100%, respectively; and in late acquisition, 84% and 96%, respectively. To identify coronary ventricular dysfunction with necrosis, the sensitivity and specificity was 92% and 100%, respectively. Conclusions. Of all the diagnostic tools available in multidetector computed tomography, coronary angiography is the most accurate in determining the coronary origin of left ventricular dysfunction. A combination of coronary angiography and myocardial tissue study after contrast allows a single test to obtain similar information compared with the combination of invasive coronary angiography and contrast magnetic resonance (AU)


Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Aged, 80 and over , /diagnosis , Multidetector Computed Tomography/instrumentation , Multidetector Computed Tomography/methods , Multidetector Computed Tomography , Multidetector Computed Tomography/standards , Multidetector Computed Tomography/trends , Magnetic Resonance Imaging/methods , Magnetic Resonance Imaging , Sensitivity and Specificity , Prospective Studies , Statistics, Nonparametric
2.
Rev Esp Cardiol (Engl Ed) ; 65(6): 517-24, 2012 Jun.
Article in English | MEDLINE | ID: mdl-22079180

ABSTRACT

INTRODUCTION AND OBJECTIVES: To evaluate the capability of multidetector computed tomography to diagnose the coronary etiology of left ventricular dysfunction compared with using invasive coronary angiography and magnetic resonance. METHODS: Forty consecutive patients with left ventricular dysfunction of uncertain etiology underwent invasive coronary angiography and contrast magnetic resonance. All patients were evaluated with multidetector computed tomography including coronary calcium presence and score, noninvasive coronary angiography, and myocardial tissue assessment. RESULTS: The sensitivity and specificity of the presence of coronary calcium to identify left ventricular dysfunction was 100% and 31%, respectively. If an Agatston calcium score of >100 is taken, specificity increases to 58% with sensitivity still 100%. Sensitivity and specificity for coronary angiography by multidetector computed tomography was 100% and 96%, respectively; for identifying necrosis in contrast acquisition it was 57% and 100%, respectively; and in late acquisition, 84% and 96%, respectively. To identify coronary ventricular dysfunction with necrosis, the sensitivity and specificity was 92% and 100%, respectively. CONCLUSIONS: Of all the diagnostic tools available in multidetector computed tomography, coronary angiography is the most accurate in determining the coronary origin of left ventricular dysfunction. A combination of coronary angiography and myocardial tissue study after contrast allows a single test to obtain similar information compared with the combination of invasive coronary angiography and contrast magnetic resonance.


Subject(s)
Calcinosis/complications , Coronary Artery Disease/complications , Ventricular Dysfunction, Left/etiology , Adult , Aged , Aged, 80 and over , Calcinosis/diagnosis , Coronary Angiography/methods , Coronary Artery Disease/diagnosis , Female , Humans , Magnetic Resonance Imaging , Male , Middle Aged , Multidetector Computed Tomography/methods , Necrosis , Prospective Studies , Sensitivity and Specificity
3.
Rev Esp Cardiol ; 55(2): 113-20, 2002 Feb.
Article in Spanish | MEDLINE | ID: mdl-11852022

ABSTRACT

INTRODUCTION AND OBJECTIVES: Atrial fibrillation is an arrhythmia with high morbidity and mortality. Restoring sinus rhythm is one of the principle objectives in its management. The present study aimed to assess the efficacy of scheduled cardioversion on atrial fibrillation by comparing two different therapeutic approaches: electrical vs. pharmacological cardioversion. PATIENTS AND METHOD: Two hundred thirty patients with atrial fibrillation of more than 48 hours duration and requiring sinus rhythm restoration were included. One hundred forty-four patients underwent external electrical cardioversion and 86 patients received quinidine. We analyzed the rate of success, duration of hospital stay, complications and clinical and echocardiographic variable that might predict success. RESULTS: Sinus rhythm was restored in 181 of 230 patients (79%). The rate of success was 77% (111/144 patients) in the electrical group and 81% (70 of 86 patients) in the pharmacological group (ns). In 13 pharmacological group patients for whom the first attempt failed attempt, a second attempt with electrical cardioversion was made and was successful in 8 patients (61%). No embolic complication was recorded and only two electrical disturbances were seen. Only atrial fibrillation lasting less than 8 weeks was associated with a higher success rate (p < 0.01). CONCLUSIONS: Scheduled cardioversion in atrial fibrillation is an effective technique with a high success rate and a very low rate of complication. Electrical cardioversion and pharmacological cardioversion with quinidine are similarly effective, although the latter involves a longer hospital stay.


Subject(s)
Atrial Fibrillation/therapy , Electric Countershock/methods , Atrial Fibrillation/drug therapy , Electric Stimulation Therapy , Female , Humans , Male , Middle Aged , Prospective Studies
4.
Rev. esp. cardiol. (Ed. impr.) ; 55(2): 113-120, feb. 2002.
Article in Es | IBECS | ID: ibc-5687

ABSTRACT

Introducción y objetivos. La fibrilación auricular es una arritmia con una elevada morbimortalidad. Restablecer el ritmo sinusal es uno de los objetivos principales en su manejo. El objetivo del presente estudio es evaluar la eficacia de la cardioversión programada en la fibrilación auricular comparando dos estrategias: la cardioversión eléctrica y la farmacológica. Pacientes y método. Se incluyeron 230 pacientes consecutivos con fibrilación auricular de más de 48 h de evolución tributarios de intento de reversión a ritmo sinusal. En 144 casos se realizó cardioversión eléctrica externa y en 86 farmacológica con quinidina, analizándose el porcentaje de éxito alcanzado, la estancia hospitalaria, las complicaciones y una serie de variables clínicas y ecocardiográficas que permitieran predecir un mayor éxito en la cardioversión. Resultados. Se consiguió restablecer el ritmo sinusal en 181 de 230 pacientes (79 por ciento). En el grupo eléctrico el porcentaje de éxito fue del 77 por ciento (111/144 casos) y en el grupo farmacológico del 81 por ciento (70/86 casos; p = NS).En 13 pacientes del grupo farmacológico en los que fracasó el primer intento se realizó posteriormente cardioversión eléctrica, que fue eficaz en 8 casos (61 por ciento). No se produjo ninguna complicación embólica y sólo dos eléctricas. Únicamente la presencia de una duración de la fibrilación auricular menor de 8 semanas se asoció a un mayor éxito (p < 0,01).Conclusiones. La cardioversión programada en la fibrilación auricular es una técnica eficaz, con una alta tasa de éxitos y un muy bajo índice de complicaciones. La eficacia es similar entre la cardioversión eléctrica y la farmacológica, aunque con una mayor estancia hospitalaria en el grupo farmacológico (AU)


Subject(s)
Middle Aged , Male , Female , Humans , Prospective Studies , Atrial Fibrillation , Electric Stimulation Therapy , Electric Countershock
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