Objective: To demonstrate by dissection of anatomical specimens and prenatalultrasonographic images of the fetal heart the presence of the cardiac fulcrum asa fixation structure supporting the helical myocardial band. Methods: Six heartsof fetuses between 20-24 weeks of gestational age resulting from spontaneousabortions were dissected, finding the cardiac fulcrum in the proximity of the aortaand connections with myocardial fibers. In 50 singleton pregnancies with fetusesbetween 18-37 weeks of gestation, fetal cardiac ultrasonography was used to obtain2D, Doppler, color and three-dimensional modalities, STIC, HD Flow and speckletracking, images, fulcrum measurements and its kinetics. Results: With the describedstrategy, the presence of the cardiac fulcrum or myocardial lever was identifiedand demonstrated, establishing its anatomical characteristics, connections withmyocardial fibers of ...