bachelorThesis
Descripción de los parámetros de evaluación de la función ventricular derecha por ecocardiografía 2D
Autor
Calderón Miranda, Camilo Andrés
Institución
Resumen
The functional and structural evaluation of the right ventricle (RV) is a fundamental aspect of the echocardiographic study given its prognostic value. Until now, the guidelines establish the assessment based on qualitative, semiquantitative and quantitative parameters with the indication of reporting the dysfunction in a dichotomous manner: Present or absent, with normality cut-off points that are not absolute at an echocardiographic value, but at their interpretation given by the cardiologist. A study has shown that when dysfunction is classified into degrees of severity (mild, moderate, severe) the prognosis in relation to cardiovascular outcomes (MACE) is different. Creating an evaluation system based on 2D-Echocardiography variables that allows RV function to be classified and that is comparable with cardiac magnetic resonance imaging (cMRI), which is the gold standard for RV evaluation, will improve the prognostic evaluation of patients. patients. Objective: to perform a correlation between the evaluation parameters of the right ventricle by echocardiography and cMRI based on 3 staging levels that take the ejection fraction of the right ventricle (FEVD) by cMRI (mild, moderate and severe). Methods: Historical cohort study of patients undergoing 2D-echocardiography and cMRI during the period 2017–2021. The studies were reviewed from the image storage systems and post-processed (by two trained cardiologists blinded to the findings) to obtain right ventricular function values in each of the two imaging techniques, taking FEVD as the reference value. mcRN. Each 2D-Echocardiography parameter was independently analyzed and correlated with the RV ejection fraction by cMRI. Results and conclusions: The classic parameters of quantitative and semiquantitative evaluation of the right ventricle (TAPSE, TAVSE, diastolic area of the RA, CAF%, TAPSE/PsAP, PsAP) showed a staggered behavior (positive or negative) with respect to the fraction of RV ejection measured by cMRI. The correlation of RV evaluation parameters (TAPSE, TAVSE, RA diastolic area, CAF%, TAPSE/PsAP, PsAP) by 2D echocardiography was moderate with respect to FEVD measured by MRI. The TAPSE / PsAP ratio was shown to be the parameter with the best linear behavior (correlation) with the FEVD measured by cMRI