Objective To explore the value of surgical treatment in rectal small cell neuroendocrine carcinoma (RSCC). Method The clinical data of patients with pathologically diagnosed as RSCC from 2000 to 2019 were extracted from the Surveillance, Epidemiology and End Results (SEER) database, to explore the effect of surgical treatment on cancer-specific survival (CSS) and overall survival (OS). Results A total of 348 cases were included with the median follow-up of 8 months (IQR: 3–16 months). Of the 101 patients in the operation group, 84 died (83.2%), including 56 tumor-related deaths (55.4%). Of the 247 patients in the non-operation group, 215 died (87.0%), including 131 tumor-related deaths (53.0%). The estimated 1-year OS of the operation group and the non-operation group were 49.6% and 34.4%, respectively, and the estimated 1-year CSS of those were 62.2% and 49.2%, respectively. There were significant differences between the two groups (both P<0.05). Results of multivariate prognostic analysis by Cox proportional hazard model showed that differentiation, SEER stage, receiving operative treatment or not, receiving chemotherapy or not, and receiving radiotherapy or not were independent influencing factors for OS, and SEER stage, receiving operative treatment or not, receiving chemotherapy or not, and receiving radiotherapy or not were independent influencing factors for CSS (all P<0.05). The OS [RR=0.61, 95%CI was (0.45, 0.81), P<0.001] and CSS [RR=0.67, 95%CI was (0.47, 0.95), P=0.025] in RSCC patients were significantly improved by surgical treatment. Conclusion Surgical treatment can improve the OS and CSS in RSCC patients.
Objective To evaluate the prognostic value of surgical treatment in gallbladder squamous cell carcinoma (GSCC) by using real-world data with a large sample in the Surveillance, Epidemiology and End Results (SEER) database. Methods The clinical data of patients with pathologically diagnosed GSCC from 2000 to 2019 were extracted from the SEER database. According to the inclusion and exclusion criteria, a total of 257 patients were included after strict screening. The patients were divided into operation group and non-operation group according to whether they underwent surgery. The cancer-specific survival (CSS) and the overall survival (OS) between the two groups were compared, and the influencing factors for the CSS and the OS were analyzed by using Cox proportional hazard model. Results Of 257 patients, 127 (49.4%) were in the operation group, and 130 (50.6%) in the non-operation group. The average follow-up ranged from 0 to 220 months, with the median follow-up time of 3 months. Of the 127 patients in the operation group, 105 died (82.7%), including 88 tumor-related deaths (69.3%). Of the 130 patients in the non-operation group, 124 died (95.4%), including 115 tumor-related deaths (88.5%). The median survival time for OS in the operation group and the non-operation group were 6 months and 3 months, respectively, and that for CSS were 7 months and 3 months, respectively. The estimated 1-year OS of the operation group and the non-operation group were 30.1% and 4.6% respectively; the estimated 1-year CSS were 35.1% and 5.8%, respectively. There were significant differences between the two groups on OS and CSS (χ2=41.400, P<0.001; χ2=42.750, P<0.001). That the OS [HR=0.44, 95%CI (0.25, 0.77), P=0.004] and the CSS [HR=0.46, 95%CI (0.25, 0.84), P=0.011] in GSCC patients were significantly improved by surgical treatment, showed by the results of multivariate prognostic analysis via Cox proportional hazard mode. Conclusions Surgical treatment was an independent factor affecting the prognosis of GSCC, and it could improve the OS and the CSS. As for the modus operandi, R0 resection should be recommended.
ObjectiveTo investigate the impact of surgical treatment on the prognosis of patients with gastric signet-ring cell carcinoma (GSRC). MethodsThe clinicopathologic and prognosis data of patients pathologically diagnosed with GSRC from 2000 to 2019 were extracted from the Surveillance, Epidemiology, and End Results (SEER) database. The Cox proportional hazards regression model was used to analyze the impact of surgery on overall survival (OS) and cancer-specific survival (CSS) of patients with GSRC. ResultsA total of 3 457 patients with GSRC were included, including 2 048 cases in the operation group and 1 409 cases in the non-operation group. The propensity-score matching by a 1∶1 nearest neighbour algorithm was conducted to control for confounding baseline differences. There were 802 cases in the operation group and 802 cases in the non-operation group after matching. The OS and CSS curves drawn by Kaplan-Meier method of the operation group were better than those of the non-operation group (χ2=434.3 P<0.001; χ2=412.4, P<0.001). The multivariate Cox proportional hazards regression analysis showed that the elderly (≥ 60 years old), late AJCC tumor stage (stage Ⅰ as reference), and patients with bone metastasis of GSRC increased the risk of shortening OS and CSS (P<0.05), while patients treated with surgery and chemotherapy decreased the risk of shortening OS and CSS (P<0.05). ConclusionAccording to the analysis results of SEER database in this study, surgical treatment is beneficial to improve the prognosis for patients with GSRC.