The Eschmann bougie is considered the gold standard of introducers 8, and even though a comparative study between the two devices has not been performed, in a study made in mannequins, the performance of both the Eschmann bougie as well as the Frova bougie were found to be similar or maybe inferior to the AOC.
El dispositivo de Eschmann se considera el patrón de oro en introductores 8, y aunque no se ha realizado un estudio comparativo de ambos dispositivos, sí se evidencia que, en un estudio hecho con maniquíes, el desempeño tanto del catéter de Eschmann, como del introductor de Frova, puede ser similar, e incluso inferior al del COA.