ABSTRACT
Introducción: La tromboembolia pulmonar aguda (TEP) es un padecimiento grave. La ecocardiografía tridimensional (ECO-3D) es un método accesible, novedoso y preciso para cuantificar la función ventricular y auricular derechas. A la fecha, no existen suficientes estudios que evalúen su papel en esta entidad. Objetivo: Determinar la utilidad del ECO-3D en la evaluación de la función ventricular y auricular derecha, y el riesgo de complicaciones cardiovasculares en pacientes con TEP aguda. Material y métodos: Se analizaron 35 pacientes, admitidos al HC CMN SXXI con TEP por angioTAC, mediante equipo Phillips IE 33, se midieron parámetros bidimensionales (2D) y 3D relacionados con función ventricular y auricular derecha (TomTec y qlab 10). Se evaluaron complicaciones cardiovasculares intrahospitalarias. Resultados: El riesgo relativo de eventos cardiovasculares mayores combinados (ECMC) intrahospitalarios por ECO-3D fue: índice de esfericidad de la aurícula derecha > 1.32; RR 20.3 IC 95% 2.9-13.8; p = 0.0001, FEVD RR 7.3 IC 95% 2.5-20.9; p = 0.0001, VDFVD > 77 mL RR de 7.3 IC 95% 2.56-20.9; p = 0.0001, VSFVD RR 5.5 IC 95% 2.26-13.3; p = 0.0001. El análisis multivariado mostró tres predictores de riesgo independiente: índice de esfericidad de la aurícula derecha > 1.32, TEP masiva y presión arterial media. Conclusiones: La evaluación combinada mediante ecocardiografía 3D de función ventricular y auricular derechas permiten una evaluación cuantitativa, predicción del riesgo para la presentación de complicaciones cardiovasculares y tiempo de estancia intrahospitalarios en pacientes con TEP aguda.
Introduction: Acute pulmonary embolism (PE) is a serious condition. Tridimensional Ecocardiography (3D ECHO) is an accessible, novel and accurate method for determination of right ventricular and atrial function. To date there are insufficient studies to assess their role in this entity. Objective: Determine the usefulness of ECO-3D in evaluating right atrial and ventricular function, and the risk of cardiovascular complications in patients with acute PE. Material and methods: 35 patients were admitted to the HC CMN SXXI with PE by CT angiogram, we analized 2D and 3D parameters by Philips iE33, right atrial and ventricular function (TomTec and QLAB 10). Hospital cardiovascular complications were evaluated. Results: The relative risk of major combined cardiovascular events for 3D ECHO was: right atrial sphericity index > 1.32; RR 20.3 95% CI 2.9-13.8; p = 0.0001, RVEF RR 7.3 95% CI 2.5-20.9; p = 0.0001, RVEDV> 77 mL RR 2.56 95% CI 7.3-20.9, p = 0.0001, RR 5.5 RVESV 95% CI 2.26-13.3; p = 0.0001. Multivariate analysis showed three independent risk predictors: right atrial sphericity index > 1.32, massive PE and mean arterial pressure. Conclusions: The combined assessment by 3D echocardiography right ventricular and atrial function allow a quantitative assessment, risk prediction for cardiovascular complications and presentation of time-hospital stay in patients with acute PE.
ABSTRACT
In echocardiographic evaluation of patients with aortic stenosis (AS), prospective studies have demonstrated that left ventricular stoke work loss index (LVSWLI) provide a more clinical efficacy than calculate of aortic valve area (AVA) by continuity equation to estimate severity of stenosis. The aim of this study was assess in our population of patients with AS the correlation between LVSWLI and AVA in regard to severity. MATERIAL AND METHODS: Forty nine patients with moderate and severe AS were evaluated by transthoracic echocardiography. Grades of AS were assessed by transaortic flow velocity (Vmax) and mean aortic transvalvular gradient (deltaP). AVA and LVSWLI were calculated and Pearson's and Spearman's correlation coefficients between both methods were assessed. Significance level was set at <0.05. RESULTS: The age of the patients was 66 +/- 13 (31-84 years). Thirty four (69%) patients had severe AS and 15 (31%) moderate AS. The Pearson's correlation coefficient between LVSWLI and AVA was 0.79 (p<0.04) and between LVSWLI and deltaP was 0.90 (p<0.03). The Spearman's correlation coefficient between LVSWLI and symptomatic status was 0.70 (rho = 0.70, p < 0.003). CONCLUSIONS: In patients with moderate and severe AS, the correlation between LVSWLI and deltaP is higher than correlation between LVSWLI and AVA. Moreover LVSWLI has a higher correlation with presence of symptoms than AVA.
Subject(s)
Adult , Aged , Aged, 80 and over , Female , Humans , Male , Middle Aged , Aortic Valve Stenosis/pathology , Aortic Valve Stenosis , Aortic Valve/pathology , Stroke Volume , Prospective Studies , Severity of Illness IndexABSTRACT
OBJECTIVES: The goal of this study was to assess the impact of left ventricular diastolic filling on remodeling and survival after acute myocardial infarction. METHODS: We studied 36 patients with first acute myocardial treated with thrombolytic agents. A Doppler echocardiography was performed at 24 hours, 30 and 90 days after infarction. It measured the relation between E and A waves peak velocities (E/A ratio) and of the E deceleration time (EDT, ms), as well as the flow propagation velocity using color mode M and the E'-wave by tissular Doppler at the lateral mitral ring. RESULTS: Patients were divided into three groups. Group I, restrctive filling (deceleration time < 140 ms, E/FPV > or = 2, E/A> 2 and E/E' > 15). Group II, elevated filling pressure (deceleration time > or = 140 ms, E/FVP > or = 2, E/A 1,2 and E/E' < or = 15). Group III, normal filling pressure (deceleration time > or = 140 ms, E/FVP < 2, E/A < 1 and E/E' < 15). The E/FPV showed a better correlation in the group with restrictive filling and left ventricular filling pressure was significantly greater than in the group with normal filling pressure at 90 days (2.18 +/- 0.90 vs. 1.5 +/- 0.35; r = 0.99; P = .0001). The end diastolic volume (EDV) was similar in the three groups 24 hours after infarction. EDV varied at 90 days after infarction in those patients that underwent successful coronary angioplasty. Group I, 142.48 +/- 32 vs. 112.48 +/- 32, r = 573; P < .0001). CONCLUSIONS: E/FVP, using color M-mode Doppler echocardiography, estimates left ventricular filling pressure and predicts left ventricular dilation after acute myocardial infarction.