Comparing the survival rates of patients with stage IIIC endometrial cancer undergoing sandwich therapy to those undergoing sequential chemotherapy and radiotherapy: a meta-analysis
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The use of additional treatment after surgery for stage IIIC endometrial cancer (EC) according to the Federation of Gynecology and Obstetrics (FIGO) is still a topic of discussion. This meta-analysis examined the effects of sandwich treatment and sequential treatment on the survival of individuals diagnosed with stage IIIC EC. We examined the literature from various databases regarding the overall survival (OS) and adverse effects of the two additional therapies following surgery in individuals diagnosed with stage IIIC EC. Revman 5.4.1 was utilized to combine hazard ratios (HR) and their corresponding 95% confidence intervals (95% CI) for OS and toxicities. The findings comprised of five retrospective investigations involving a combined total of 800 individuals. The patients who underwent sandwich treatment did not demonstrate a notable improvement in survival rates over a period of 3 years. Upon eliminating the impact of extensive samples, it was discovered that sandwich therapy exhibited a superior 5-year overall survival compared to patients receiving sequential therapy. The effectiveness of sandwich therapy was superior to sequential therapy in terms of a 3-year OS for non-endometrioid histology, although the outcome did not reach statistical significance. The toxicities of both treatments were similar. In terms of long-term survival, sandwich therapy was found to be more advantageous than sequential therapy for patients with stage IIIC EC, with no significant disparity observed in the 3-year OS and toxicities between the two treatments. Sandwich therapy exhibited a tendency towards improved effectiveness in patients with histology other than endometrioid.