Utilidad de la ecoendoscopia digestiva alta de re-estadiaje para la detección de enfermedad residual tras tratamiento neoadyuvante del cáncer esofagogástrico. Comparativa con PET-TC y correlación con pronóstico y supervivencia de los pacientes

Zusammenfassung

Endoscopic ultrasonography is commonly used for the initial staging of esophago- gastric adenocarcinoma. However, the preoperative staging after neoadjuvant therapy remains controversial, with PET-CT and endoscopic ultrasonography suggested but not universally applied. In this study, a large series of gastric and esophago-gastric junction adenocarcinomas, where both procedures were performed as part of the initial staging and after preoperative chemother- apy are examined. The thesis findings indicate that both EUS and PET-CT have limitations but can determine the stage of cancer and predict survival. Notably, the study showed that the assessment of lymph nodes using endoscopic ultrasonography and the evaluation of response to preoperative chemotherapy were predictive of survival, underscoring the importance of this procedure as an additional tool for staging in this particular setting.