Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, DF, Mexico
Haydee Cristina Verduzco-Aguirre , Mónica Isabel Meneses Medina , Ana Karen Valenzuela , Vanessa Rosas Camargo , Luis Guillermo Anaya Sánchez , Edwin Ulises Cortez Dominguez , Fidel David Huitzil-Melendez
Background: gastric cancer is common in Mexico. Evaluation of treatment strategies is greatly important in early gastric cancer. National institutions rarely report their outcomes, limiting feedback and policy improvements. Methods: single-center retrospective review of patients with histologically confirmed localized gastric cancer diagnosed from Jan 2005 to Dec 2017. Overall survival (OS) and recurrence-free survival (RFS) were estimated by Kaplan-Meier curves and compared with log-rank rest. A p value < 0.05 was significant. Results: we included 78 cases, median age 63 years, 52.6% men. Surgery was the initial treatment in 46 patients (59%) and 87% achieved R0 resection. Adjuvant treatment was administered to 63% of patients. 29 patients (37.2%) started perioperative chemotherapy with 86.2% of them being resected, and 75.9% having R0 resection. 13 patients (44.8%) also received postoperative chemotherapy. Better performance status (p=0.036) and lower albumin levels (p=0.039) were found in patients with initial surgery vs those with perioperative chemotherapy. At the time of surgery, most patients had stage III disease in both groups but 5 patients had M1 disease despite negative initial laparoscopy in the chemotherapy group and 5 patients did not require aduvant tx given early stage in the surgery first group. Median OS and RFS are reported in table. Conclusions: Most patients in our center undergo initial surgery. We report a differential survival according to initial treatment. More advanced disease in chemotherapy first group may explain differences. Given non-random assignment, we could not show survival benefit of chemotherapy treated patients.
Median OS (mo) | p | Median RFS (mo) | p | |
---|---|---|---|---|
All patients (n 78) | 29.5 | 18.8 | ||
Initial treatment | ||||
Surgery (n=46) | 43.6 | 0.208 | 35.2 | 0.018 |
Chemotherapy (n=29) | 28.7 | 10.5 | ||
Adjuvant treatment | ||||
Yes (n=42) | 43.6 | 0.024 | 35.2 | 0.043 |
No (n=33) | 24.9 | 11.2 | ||
R0 resection | ||||
Yes (n=62) | 43.6 | 0.023 | 26.6 | 0.089 |
No (n=13) | 16.6 | 9.7 | ||
Pathologic stage at resection | ||||
I-II (n=36) | 83.8 | 0.001 | 84.0 | 0.001 |
III-IV (n=35) | 19.0 | 9.7 | ||
Neo- + adjuvant chemotherapy | ||||
Yes (n=13) | 27.1 | 0.16 | 14.1 | 0.76 |
No (n=62) | 53.7 | 20.6 |
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