4
2
Galvarini Recabarren M y cols. Ecoendoscopia en la estadificación del cáncer. Esófago y Estómago. Rev Argent Cirug 2021;113(1):32-42
staging; EUS has shown the best accuracy for T and N outcome as expected but not staꢀsꢀcally significant.
1
8
19
staging . Kuntz et al. evaluated the three modaliꢀes
Nowadays, there are not many centers in
and reported that EUS had the greatest accuracy for T Argenꢀna that rouꢀnely implement EUS for staging of
staging (73%) and N staging (87%). The lowest accuracy EAC and GAC. We believe that this is partly due to the
for T staging was observed with MRI (48%), while MRI difficulty in training young endoscopists in the use of
and CT scan showed similar performance for N staging this complex tool. The cost of the equipment, materials
(
69% and 65%, respecꢀvely). Kwee et al.20 reported and their adequate maintenance is another limitaꢀon
that although mulꢀdetector CT and MRI have improved due to the fragile economic situaꢀon of our country.
the accuracy for T staging, EUS remains the first-choice We did not find any evidence of the current use of EUS
imaging modality for locoregional staging. However, in Argenꢀna for this disease in the literature, but if we
CT and MRI are the best studies for evaluaꢀng distant want to expand its use, we should start by training
disease; therefore, the complementary role of cross- our endoscopists in different reference centers in the
secꢀonal imaging and EUS in staging of esophageal and country and thus increase the access of the populaꢀon
gastric cancer is of utmost importance.
to this pracꢀce.
We understand the limitaꢀons of our study due
to its retrospecꢀve nature. In our series of paꢀents with
GAC we observed a higher number of indicaꢀons of Conclusions
perioperaꢀvechemotherapyinpaꢀentsundergoingEUS
staging (G3 40% vs. G4 7%) which is not reflected in the
The use of EUS as a tool for locoregional
absolute numbers of lymph node metastases, probably staging in selected paꢀents with EAC and GAC plays a
due to the difference in the sample size. In terms of very important role in the selecꢀon of paꢀents who will
overall survival and disease-free survival, those paꢀents undergo neoadjuvant treatment before curaꢀve intent
treated with perioperaꢀve chemotherapy had beꢄer surgery.
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