Objective: To investigate the relationship between body mass index (BMI) and clinicopathological characteristics and prognosis of gastric cancer patients. Methods: The clinical data of 788 patients with advanced gastric cancer were retrospectively analyzed. According to WHO weight standard, BMI<18.5 kg/m² was the low weight group, BMI 18.5~< 25.0 kg/m² was the normal weight group, BMI ≥ 25.0 kg/m² was the overweight group. The low weight group included 127 cases, the normal weight group included 540 cases and the overweight group included 121 cases. The relationship between different BMI groups and clinicopathological characteristics of patients was analyzed. Cox multivariate regression model was used to analyze the independent factor of the prognosis of patients. Results: The average BMI of 788 patients was 21.70 kg/m². The patients′ BMI was significantly correlated with depth of invasion, maximum diameter of tumors, neutrophil-to-lymphocyte ratio (NLR) and platelet-to-lymphocyte ratio (PLR) (all P<0.05). BMI was marginally correlated with gender, age, smoking, alcohol consumption, TNM stage, lymph node metastasis and histological type (all P>0.05). Furthermore, BMI was significantly correlated with prealbumin, prognostic nutritional index, total protein, albumin and hemoglobin levels (all P<0.05). BMI was also significantly correlated with intraoperative bleeding volume, operation time, number of lymph node resection, number of lymph node metastasis and lymph node metastatic ratio (all P<0.05). The median survival time of the entire group was 35.3 months. The median survival time of patients in low weight group, normal weight group, and overweight group was 21.0 months, 26.3 months, and 31.2 months, respectively, the differences were statistically significant (P<0.001). Cox multivariate analysis showed that TNM stage, depth of tumor invasion, lymph node metastasis, PLR and BMI were independent risk factors of the prognosis of patients with gastric cancer (all P<0.05). Conclusions BMI is associated with the nutritional status, intraoperative blood loss, operative time, and lymph node metastatic ratio of patients with gastric cancer. BMI is an independent risk factor of the prognosis of patients with gastric cancer. The overall survival time of patients with low body weight is shorter than those of normal weight and overweight patients.

Objective: To study the relationship of liver function index alanine aminotransferase and aspartate aminotransferase ratio (LSR) with clinicopathological factors in patients with gastric cancer and its clinical significance in predicting the survival of patients. Methods: A retrospective case-control study was used. Retrospective analysis was conducted on 891 patients with advanced gastric cancer who underwent gastric cancer surgery at the Gastrointestinal Surgery Department of Harbin Medical University Cancer Hospital from January 2007 to December 2010, having complete postoperative clinicopathological and follow-up data. Case inclusion criteria: (1) preoperative definite diagnosis of gastric cancer, residual gastric cancer and other gastric tumors were excluded; (2) no neoadjuvant therapy before surgery; (3) no other serious diseases such as acute coronary heart disease, cirrhosis, chronic renal failure, etc.; (4) radical gastrectomy was performed, palliative treatment or open laparotomy cases were excluded; (5) complete postoperative pathological data, complete follow-up information; (6) cause of death was associated with gastric cancer. Blood examination was performed during hospitalization. The best cut-off points of LSR, hemoglobin, lymph node metastasis rate, maximum diameter of tumors, alkaline phosphatase, glutamyl transpeptidase, total bilirubin and lactate dehydrogenase were obtained by using receiver operating characteristic curve(ROC). Patients were divided into two groups according to best LSR cut-off points. The relationship between LSR and clinicopathological factors was analyzed, and the overall survival rate of different LSR groups was compared. Relevant clinical factors and LSR were included in the univariate and multivariate survival analysis using the Cox method. Results: The best cut-off point of LSR in ROC curve was 1.43, and 682 cases in LSR<1.43 group, 209 cases in LSR≥1.43 group. The best cut-off points of hemoglobin, lymph node metastasis rate, maximum diameter of tumors, alkaline phosphatase, glutamyl transpeptidase, total bilirubin and lactate dehydrogenase were 130.2 g/L, 18.0%, 4.75 cm, 68.1 U/L, 16.55 U/L, 5.58 μmol/L and 135.8 U/L, respectively. Between patients with LSR<1.43 and LSR≥1.43, age (χ²=4.412, P=0.036), depth of tumor invasion (χ²=64.306, P<0.001), histological type (χ²=8.026, P=0.005), alkaline phosphatase (χ²=8.217, P=0.004), glutamyl transpeptidase (χ²=33.207, P<0.001), total bilirubin (χ²=14.012, P<0.001) and lactate dehydrogenase (χ²=63.630, P<0.001) were significantly different. The 1-, 3- and 5-year survival rates of LSR<1.43 group and LSR≥1.43 group were 70.8%, 31.3%, 25.0% and 64.9%, 24.4%, 11.3% respectively, whose difference was significant (χ²=10.140, P=0.001). Univariate analysis showed that age, hemoglobin, TNM stage, depth of invasion, lymph node metastasis rate, lymph node metastasis, histological type, maximum diameter of tumors, glutamyl transferase, total bilirubin and LSR were associated with overall survival of gastric cancer (all P<0.05). Multivariate analysis showed that tumor TNM stage (HR=1.605, 95%CI: 1.332 to 1.936, P<0.001), tumor invasion depth (HR=1.299, 95%CI: 1.168 to 1.445, P<0.001), lymph node metastasis rate (HR=2.400, 95%CI:1.873 to 3.076, P<0.001), lymph node metastasis (HR=1.263, 95%CI: 1.106 to 1.478, P=0.007), maximum tumor diameter (HR=1.375, 95%CI: 1.134 to 1.669, P=0.001), and LSR (HR=1.427, 95%CI: 1.190 to 1.711, P<0.001) were independent risk factors for the prognosis of patients with gastric cancer. Conclusions LSR is an independent risk factor for the prognosis of gastric cancer patients, and the detection is simple and easy. It is a potential marker for the prognosis of gastric cancer. Therefore, in the preoperative comprehensive management stage, it should be possible to restore and improve the liver function in order to obtain a better prognosis of gastric cancer and prolong the survival time of patients.

Objective To study the relationship between preoperative systemic immune inflammatory index (SII) and the prognosis of postoperative patients. Methods A retrospective analysis was made on 1 509 patients with gastric cancer who underwent gastric cancer surgery at the Department of Gastrointestinal Surgery,Affiliated Tumor Hospital of Harbin Medical University from Jan 1991 to Dec 2012.The SII values [SII =(platelets x neutrophils) / lymphocytes] were calculated and grouped according to the SII mean.The relationship between SII and clinical factors was analyzed.Results Preoperative mean SII was 570.5,substratified into SII ＜ 570.5 group (871 cases),and SII ＞ 570.5 group (638 cases).There was a statistically significant difference between SII level and gender(x2 =4.239,P =0.040),tumor maximum diameter(x2 =31.852,P ＜ 0.001),total serum protein (x2 =7.962,P =0.005),Alb/Glob ratio(x2 =26.127,P＜ 0.001) and Hb(x2 =64.647,P＜ 0.001).The 1-,3-,and 5-year survival rates were 77.1％,42.4％,31.4％ and 68.9％,28.1％,19.8％,respectively(x2 =39.557,P ＜ 0.001).Multivariate analysis showed that tumor TNM stage (HR =1.592,95％ CI:1.401-1.809,P ＜ 0.001),infiltration depth(HR =1.256,95％ CI:1.145-1.377,P ＜ 0.001),lymph node metastasis(HR =1.177,95 ％ CI:1.042-1.329,P =0.009),tumor maximum diameter (HR =1.151,95 ％ CI:1.006-1.317,P =0.040),Hb(HR =0.832,95％ CI:0.737-0.940,P =0.003) and SII (HR =1.337,95％ CI:1.187-1.505,P ＜ 0.001) were independent risk factors for the prognosis of patients with gastric cancer.Conclusions SII is an independent risk factor for the prognosis of patients with gastric cancer.Preoperative SII ＞ 570.5 indicates poor prognosis.

Objective To study the relationship between preoperative serum ALT and clinicopathological factors in patients with gastric cancer after radical gastrectomy.Methods At the Department of Gastrointestinal Surgery,Tumor Hospital of Harbin Medical University from Jan 2008 to Dec 2010,491 patients were grouped according to ROC curve cut-off point of serum ALT.The relationship between ALT and clinical factors was analyzed,and single-factor and multi-factor survival analysis was performed.Results There were 201 patients with ALT ≤ 20.05 U/L,and 290 patients with ALT ＞ 20.05 U/L Serum ALT was associated with age (x2 =11.231,P ＜ 0.001),depth of tumor invasion (x2 =23.178,P＜0.001),GGT(x2 =19.190,P＜0.001) and AST(x2 =30.771,P＜0.001).The 1-,3-,and 5-year survival rates of patients with ALT ≤ 20.05U/L and ALT ＞ 20.05U/L were 83.5％,51.4％,42.1％ and 66.2％,27.4％,15.7％.There was significant difference between the two groups (x2 =41.711,P＜0.001).Muhivariate analysis showed that tumor TNM stage(HR =1.882,95％ CI:1.468-2.413,P ＜0.001),tumor infiltration depth (HR =1.161,95％ CI:1.020-1.322,P =0.024),lymph node metastasis (HR =1.177,95％ CI:1.042-1.329,P =0.009),Hb (HR =0.726,95％ CI:0.579-0.909,P =0.005),neutrophil to lymphocyte rate(HR =1.275,95％ CI:1.002-1.623,P =0.048) and ALT(HR =2.191,95％ CI:1.754-2.738,P ＜ 0.001) were independent risk factors for the prognosis.Conclusions Serum ALT is an independent risk factor for the prognosis of gastric cancer patients after radical gastrectomy.

Objective To evaluate the prognostic value of prognostic nutritional index (PNI) in gastric cancer patients with peritoneal metastasis.Methods 287 gastric cancer patients with peritoneal metastasis were enrolled from Jan 2010 to Dec 2016.Results Compared with PNI ＞ 45,patients in PNI≤45 group were elder [(59 ± 11) vs.(54 ± 11),t =3.734,P =0.000],lower albumin [(35 ± 4) g/L vs.(42 ± 4)g/L,t =15.988,P =0.003)],lower plasm hemoglobin concentration [(110 ± 22)g/L vs.(129 ±24) g/L,t =6.245,P =0.000),higher platelet count/lymphocyte count ratio [PLR,(210 ± 89) vs.(150 ± 66),t =6.547,P =0.000],higher neutrophil count/lymphocyte count ratio [NLR,(3.7 ± 2.9)vs.(2.4 ± 1.2),t =4.628,P =0.000],lower percentage of pallative gastrectomy (45.5％ to 58.5％,x2 =4.45,P =0.035).Logistic regression analysis showed that age ＞ 58-years,NLR ＞ 2.87,PLR ＞ 170,hemoglobin ≤ 130 g/L,local organ infiltration were risk factors leading to low-PNI (all P ＜ 0.05).The median survival time for all patients was 8.7 months.Univariate analysis revealed that,PNI ＞ 45,serum albumin ＞ 40 g/L,no ascites,lower-grade of peritoneal metastasis,pallative gastrectomy,postoperation chemotherapy were positively associated with better prognosis (all P ＜ 0.05).Multivariate analysis demonstarted that,PNI (HR =0.717,P =0.039).Grade of peritoneal metastasis (HR =1.206,P =0.044),pallative gastrectomy (HR =1.529,P =0.001) were independent prognostic risk factors for the patients with peritoneal metastasis.Conclusion PNI are both predictors of nutrition assessment and of prognosis for gastric cancer patients with peritoneal metastasis.

Objective:To compare the ability of platelet-lymphocyte ratio (PLR) and neutrophil-lymphocyte ratio (NLR) in evaluating the prognosis of patients with TNM stageⅠto Ⅲ gastric cancer.Methods:From May 2001 to December 2013, the clinicopathological data of 645 patients with gastric cancer treated at Harbin Medical University Cancer Hospital were retrospectively analyzed. Chi-square test was used to analyze the differences between NLR, and PLR and clinicopathological characteristics of patients. Kaplan-Meier method and log-rank test were performed to compare the overall survival of patients. Cox proportional hazards regression model was performed to analyze the prognosis of gastric cancer patients. The ability of NLR and PLR to evaluate the prognosis of gastric cancer was compared by receiver operating characteristic curve.Results:The cutoff values of PLR and NLR were 141.50 and 1.94, respectively. PLR was associated with gender, resection method, maximum diameter of tumor, whether chemotherapy, T-stage, N-stage, TNM stage, tumor location, white blood cell, hemoglobin, albumin, and whether total gastrectomy ( χ2=9.224, 10.577, 28.825, 6.831, 29.059, 28.637, 30.748, 18.023, 24.320, 77.274, 9.021 and 10.745, all P<0.05). NLR were associated with resection method, maximum diameter of tumor, T-stage, N-stage and TNM stage, white blood cell, hemoglobin and albumin ( χ2=14.563, 12.092, 22.697, 44.735, 34.151, 7.949, 9.611 and 7.498, all P<0.05). The results of multivariate analysis showed that resection method, whether chemotherapy, T-stage, N-stage, PLR and whether total gastrectomy were all independent risk factors for gastric cancer patients ( χ2=23.653, 22.023, 16.697, 24.038, 4.110 and 22.364, all P<0.05). The five-year cumulative survival rate of the patients with PLR<141.50 was higher than that of patients with PLR≥141.50 (55.4% vs. 30.5%), and the difference was statistically significant ( χ2=47.968, P<0.01). The AUC value of PLR in prognostic evaluation of gastric cancer was 0.629, which was higher than that of NLR (0.596, P<0.01). Conclusion:PLR is better than NLR in the prognostic evaluation of gastric cancer patients.

OBJECTIVE: To compare the clinicopathological features and the prognosis between patients with adenocarcinoma of esophagogastric junction (AEG) and with adenocarcinoma of gastric antrum (AGA), and to investigate the prognostic factors of AEG and AGA. METHODS: A retrospective cohort study was performed on clinicopathological data of 239 AEG patients (AEG group) and 313 AGA patients selected simultaneously (AGA group) undergoing operation at Harbin Medical University Cancer Hospital from January 2001 to December 2012. INCLUSION CRITERIA: (1) receiving radical surgery (R0 resection); (2) AEG or AGA confirmed by pathological examination of postoperative tissue specimens; (3) without preoperative neoadjuvant radiotherapy or chemotherapy; (4) complete clinicopathological and follow-up data; (5) patients who died of non-tumor-related causes were excluded. Chi-square test and independent samples t-test were used to determine differences in clinicopathological factors between two groups. The overall survival (OS) of patients was compared by Kaplan-Meier method and Log-rank test. Multivariate prognosis analysis was performed using Cox proportional hazards regression model. RESULTS: As compared to AGA group, AEG group had higher proportion of male [82.0%(196/239) vs. 65.2%(204/313),χ²=19.243,P<0.001], older age [(60±10) years vs. (55±12) years, t=4.895, P<0.001], larger tumor diameter [(5.6±2.4) cm vs. (5.0±3.3) cm, t=2.480,P=0.013], more T4 stage[64.8%(155/239) vs. 55.6%(174/313),Z=-3.998, P<0.001], and more advanced tumor stage [stage III:60.7%(145/239) vs. 55.6%(174/313),Z=-2.564,P=0.010]. There were no statistically significant differences in serum albumin or hemoglobin between two groups (all P>0.05). The 5-year OS rate was 33.5% and 56.9% in AEG group and AGA group respectively and the median OS was 60.0(3.0-60.0) months and 33.6(3.0-60.0) months respectively; the difference was statistically significant (P<0.001). In AEG group, univariate analysis showed that differences of hemoglobin level (5-year OS rate: 24.0% for <130 g/L, 39.9% for ≥130 g/L, P=0.006), tumor diameter (5-year OS rate: 41.9% for <5 cm,28.8% for ≥5 cm, P=0.014), N stage (5-year OS rate: 42.2% for N0, 40.9% for N1, 31.7% for N2, 15.8% for N3a, 9.0% for N3b, P<0.001) and TNM stage (5-year OS rate: 56.2% for stage I, 38.5% for stage II, 28.3% for stage III,P=0.017) were statistically significant (all P<0.05); multivariate analysis revealed that the worse N stage was an independent risk factor of prognosis survival for AEG patients(HR=1.404,95%CI:1.164-1.693, P<0.001), and serum hemoglobin level ≥130 g/L was an independent protective factor of prognosis survival for AEG patients (HR=0.689,95%CI:0.501-0.946,P=0.021). In AGA group, univariate analysis showed that differences of serum albumin (5-year OS rate: 49.1% for <40 g/L, 61.1% for ≥ 40 g/L, P=0.021), tumor diameter (5-year OS rate: 74.2% for <5 cm, 39.9% for ≥ 5 cm, P<0.001), T stage (5-year OS rate: 98.3% for T1,83.3% for T2,50.0% for T3,36.8% for T4, P<0.001), N stage (5-year OS rate: 89.0% for N0, 62.3% for N1, 50.0% for N2, 33.9% for N3a, 10.3% for N3b, P<0.001) and TNM stage (5-year OS rate: 97.3% for stage I, 75.8% for stage II, 32.8% for stage III, P<0.001) were statistically significant (all P<0.05); multivariate analysis revealed that the worse T stage (HR=1.516,95%CI:1.060-2.167,P=0.023) and the worse N stage (HR=1.453,95%CI:1.209-1.747,P<0.001) were independent risk factors for prognosis of AGA patients. CONCLUSIONS As compared to AGA, AEG presents have poorer prognosis,and is easier to present with later pathological stage and larger tumor diameter. N stage and hemoglobin level are independent factors associated with the OS of AEG patients. T stage and N stage are independent factors associated with the OS of AGA patients.
Adenocarcinoma ; mortality ; pathology ; surgery ; Adult ; Aged ; Esophagogastric Junction ; pathology ; surgery ; Female ; Humans ; Kaplan-Meier Estimate ; Male ; Middle Aged ; Neoplasm Staging ; Prognosis ; Pyloric Antrum ; pathology ; surgery ; Retrospective Studies ; Stomach Neoplasms ; mortality ; pathology ; surgery