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Treatment Outcomes and Survival Study of Gastric Cancer Patients: A Retrospective Analysis in an Endemic Region

  • Basaran, Hamit (Department of Radiation Oncology, Erzurum Regional Training and Research Hospital) ;
  • Koca, Timur (Department of Radiation Oncology, Erzurum Regional Training and Research Hospital) ;
  • Cerkesli, Arda Kaymak (Department of Radiation Oncology, Erzurum Regional Training and Research Hospital) ;
  • Arslan, Deniz (Department of Medical Oncology, Erzurum Regional Training and Research Hospital) ;
  • Karaca, Sibel (Department of Radiation Oncology, Erzurum Regional Training and Research Hospital)
  • Published : 2015.03.18

Abstract

Purpose: To present information about prognostic factors of gastric cancer patients treated in our Erzurum center including age, gender, tumour location, pathological grade, stage and the effect of treatment on survival. Materials and Methods: This retrospective study was performed on patients who applied to our clinic and diagnosed as gastric cancer. Age and gender of the patients, primary location, histopathological characteristics, TNM stage of the gastric cancers (GCs), treatment applied, oncological treatment modalities and survival outcomes were studied. A univariate analysis of potential prognostic factors was performed with the log-rank test for categorical factors and parameters with a p value < 0.05 at the univariate step were included in the multivariate regression. Results: A total of 228 patients with a confirmed diagnosis of gastric cancer were included in the study with a male/female ratio of 1.47. Median follow-up period was estimated as 22.3 (range, 3 to 96) months. When diagnosis of the patients at admission was analysed, stage III patients were most frequently encountered (n=147; 64.5%). One hundred and twenty-six (55.3%) underwent surgical treatment, while 117 (51.3%) were given adjuvant chemotherapy. Median overall survival time was 18.0 (${\pm}1.19$) months. Mean overall survival rates for 1, 2, 3 and 5 years were $68{\pm}0.031%$, $36{\pm}0.033%$, $24{\pm}0.031%$and $15.5{\pm}0.036%$, respectively. Univariate variables found to be significant for median OS in the multivariate analysis were evaluated with Cox regression analysis. A significant difference was found among TNM stage groups, location of the tumour and postoperative adjuvant treatment receivers (p values were 0.011, 0.025 and 0.001, respectively). Conclusions: This study revealed that it is possible to achieve long-term survival of gastric cancer with early diagnosis. Besides, in locally advanced GC patients, curative resection followed by adjuvant concomitant chemoradiotherapy based on the McDonald regimen was an independent prognostic factor for survival.

Keywords

Gastric cancer;overall survival;prognostic factors;chemoradiotherapy

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