To investigate the influencing factors of long-term prognosis of patients with T4 gastric cancer after laparoscopic radical operation.

Retrospective analysis was performed with the clinical data of 50 patients with T4 gastric cancer who underwent laparoscopic radical gastrectomy from January 2016 to December 2017. All the data were processed by using SPSS22.0 software, the mean age and other measurement data were expressed as (±s), and the comparison between groups was examined by using independent t test. The prognosis of patients with different clinicopathological features were described by n(%), and were performed by using χ² test. The survival curve were plotted by using K-M method, and the independent factors influencing the long-term prognosis of T4 gastric cancer were analyzed by using multivariate Logistic regression analysis. A P value of <0.05 was considered as statistically significant difference.

During the follow-up period, there were 31 cases (62.0%) survived without incident, 5 cases(10.0%) recurred, , and 14 cases(28.0%) died.Multivariate logistic regression analysis showed that lymph node metastasis(OR=1.269, 95%CI=1.136~1.547) and platelet counting ≥400×10⁹/L(OR=3.927, 95%CI=1.537~2.658) were independent factors for the long-term prognosis of T4 gastric cancer patients after laparoscopic radical surgery.

Lymph node metastasis and platelet counting ≥400×10⁹/L were independent factors influencing the long-term prognosisof patients with T4 gastric cancer after laparoscopic surgery.