CEA levels over 5ng/ml were classified as abnormal levels, as well as DD levels over 0.5 mg/ml. During postoperative monitoring of patients, the DD and CEA levels were evaluated at each check up.
Los niveles de ACE mayores a 5 ng/ml fueron establecidos como anormales así como niveles de DD mayores a 0,5 mg/ml. Durante el seguimiento postquirúrgico a los pacientes se les tomaba para cada revisión el DD y el ACE.