EBUS/EUS : quelle relation ? Pour quel résultat ?

Mediastinal staging of non metastatic patients is a key moment in the initial diagnosis of non-small cell lung cancer. It has a major impact on which treatment the patient will receive. Even if surgery has the best negative predictive value, endoscopic ultrasonography should be used first for the staging. It is more accurate, with less side effects, cheaper, and also because it can be done without anesthesia. More invasive diagnosis methods should be used only when EBUS or EUS show negative results or for mediastinal evaluation after neoadjuvant chemotherapy. The combined ultrasound (CUS) is the mix between the 2 previous methods which allows a nearly complete mediastinal staging. It is the most sensitive technic. However, for organisation purpose, pulmonologist now realize authentic endobronchial ultrasound (EUS-B).