Correlación ecocardiográfica entre la Integral Velocidad Tiempo del tracto de salida del ventrículo izquierdo y la Fracción de Eyección en un hospital de cuarto nivel en Bogotá

Abstract

Introduction: The evaluation of the left ventricular function can be assessed by quantifying the ventricular volumes and represents an important value in the diagnosis, management, follow-up, and prognosis of the patients in a variety of clinical settings. However, in some patients could have technical limitations in order to evaluate these volumes, so additional methods may be required in order to help estimate them. Objective: To evaluate the correlation between the left ventricular outflow tract velocity time integral (LVOT VTI) and the left ventricular ejection fraction (LVEF) of patients admitted to an echocardiography study. Methods: Study of diagnostic tests to evaluate the retrospective correlation between LVOT VTI and LVEF. Results: The correlation between the LVOT VTI and LVEF showed in this Study a strong correlation, estimated by a Pearson correlation coefficient of 0.671 (95% CI 0.604-0.729) and statistical significance p < 0.0001. Conclusion and discussion: LVOT IVT presents a good correlation with LVEF determined by the Simpson method, which is proposed as a useful tool for the approximation in the echocardiography services to estimate an approximate of the LVEF in cases where there may be limitations for its estimation.