ECG and BNP have been assessed as screening tests for LVSD and heart failure. However, echocardiography also provides information about valvular disease and LVH. We assessed how good these screening tests are in identifying whether the subsequent echocardiogram will have any significant abnormality.
Jeyaseelan, S., Goudie, B. M., Pringle, S. D., Donnan, P. T., Sullivan, F. M., & Struthers, A. D. (2007). A critical re-appraisal of different ways of selecting ambulatory patients with suspected heart failure for echocardiography. European Journal of Heart Failure, 9(1), 55-61. https://doi.org/10.1016/j.ejheart.2006.04.003