ObjectiveTo observe the clinical curative effect of interventional chemotherapy in the treatment of advanced gastric cancer. MethodsThirty advanced gastric cancer patients underwent arterial infusion chemotherapy and embolization treatment between January and December 30, 2013. The treatment was carried out every three weeks. We evaluated the clinical results after the third treatment. The clinical improvement was assessed based on alleviation of such symptoms as epigastric pain, poor appetite, nausea, vomiting and fecal occult blood. The tumor size was evaluated through abdominal CT examination. ResultsAbdominal pain relieved in 19 out of 28 patients (67.9%); appetite improved in 18 out of 24 patients (75.0%); vomiting relieved in 15 out of 16 cases (93.8%); and fecal 9 out of 12 patients with positive occult blood turned to negative (75.0%). The total effective rate was 83.3%, and 8 patients accepted interventional therapy after operation. The survival rates during the 6, 12 and 24-month follow-up were respectively 85.0%, 65.0%, and 25.0%. ConclusionsInterventional chemotherapy and embolization treatment are effective for advanced gastric cancer, which can relieve symptoms and lower tumor stage. Some patients have a second chance of operation, which can be an effective method in the treatment of advanced gastric cancer.
ObjectiveTo evaluate the relationship between methylenetetrahydrofolate reductase (MTHFR) gene C677T polymorphism and efficacy of fluorouracil-based chemotherapy in patients with advanced gastric cancer (AGC). MethodsComputer retrieval in China Journal Full-text Database, Chinese Science and Technology Periodical Database, Wanfang database, Chinese Biomedical Literature Database, PubMed, EMbase, Cochrane Library and Web of Science Database (from their establishment to May 28, 2013) was performed to include case-control studies on MTHFR gene C677T polymorphism and sensitivity to fluorouracil-based chemotherapy in patients with advanced gastric cancer. Statistical analysis was done by using RevMan 5.1 software. ResultsSeven case-control studies with 775 patients were included. The meta-analysis showed that among MTHFR C677T genotypes, for TT vs. CC, OR=4.63, 95%CI (1.23, 17.4); and for CC+CT vs. TT, OR=0.21, 95%CI (0.06, 0.78). Subgroup analysis of Asian group showed that for TT vs. CC, OR=32.99, 95%CI (11.40,95.42); and for CC+CT vs. TT, OR=0.04, 95%CI (0.02, 0.10). Sensitivity analysis performed according to different detection methods showed that for TT vs. CC, OR=6.03, 95%CI (1.53, 23.72); and for CC+CT vs.TT, OR=0.17, 95%CI (0.04, 0.68). ConclusionPolymorphism of MTHFR C677T gene may be associated with sensitivity to fluorouracil-based chemotherapy in patients with AGC.
ObjectiveTo summarize the research progress of neoadjuvant chemotherapy in advanced gastric cancer. MethodThe literatures about the research progress of neoadjuvant chemotherapy in the advanced gastric cancer were reviewed. ResultsThe neoadjuvant chemotherapy in the advanced gastric cancer could significantly improve the R0 resection rate, improve the long-term survival rate, and reduce the risk of death.The course of neoadjuvant chemotherapy for locally advanced gastric cancer without distant metastasis generally was 6-9 weeks, and then according to the results of the curative effect evaluation to decide whether to undergo surgery treatment.Further the clinical research and improvement of chemotherapy sensitivity detection method were helpful to the unity of the standard of neoadjuvant chemotherapy. ConclusionsThe curative effect of neoadjuvant chemotherapy in advanced gastric cancer is clear.But there is no uniform standard on such as indications, chemotherapy regimens, medication time, and curative effect evaluation index, and so on.It is still needed the further research of multicenter and large clinical trials.
ObjectiveTo evaluate the prognostic significance of serum levels of vascular endothelial growth factor (VEGF) and insulin-like growth factors-Ⅰ (IGF-Ⅰ) in advanced gastric cancer patients who were treated with oxaliplatin/5-fluorouracil (FOLFOX). MethodsNinety-six advanced gastric cancer patients who were treated with FOLFOX in our hospital between March 2007 to August 2010 were enrolled in this study. All of the patients were treated with oxaliplatin (85 mg/m2) as a 2-hour infusion on day 1, and leucovorin (20 mg/m2, about 10 min) on day 1 and day 2, followed by a 5-fluorouracil bolus (400 mg/m2) and 22 hours of continuous infusion of 600 mg/m2. Treatment was repeated in 2-week intervals, and patients received 4 chemotherapy cycle in total. The levels of serum VEGF and IGF-Ⅰ were measured using enzyme-linked immunoassays. The relationship between serum levels of VEGF/IGF-Ⅰ and the clinicopathological characteristics of patients, the relationship between serum levels of VEGF/IGF-Ⅰ and prognosis of patients, were analyzed. ResultsThe serum levels of VEGF and IGF-Ⅰ were (464.4±57.4) pg/mL and (33.5±7.3) ng/mL, respectively. The serum level of VEGF was related with surgical history, Lauren's classification, TNM staging before treatment, and pathological type (P < 0.05), and serum level of IGF-Ⅰ was related with TNM staging before treatment and number of transferred organs (P < 0.05). The serum levels of VEGF and IGF-Ⅰ in stable disease (SD) +progressive disease (PD) patiens were higher than those of complete response (CR) +partial response (PR) patients (P < 0.05). The results of Cox proportional hazard regression model showed that, effect of chemotherapy (HR=1.764, P=0.006), number of transferred organs (HR=1.662, P=0.015), serum level of VEGF (HR=1.834, P=0.012) and IGF-Ⅰ (HR=1.855, P=0.008), were all significantly related with time to progression (TTP); serum level of VEGF (HR=2.205, P=0.002) and IGF-Ⅰ (HR=1.931, P=0.004) were all significantly related with overall survival (OS). ConclusionLevels of serum VEGF and IGF-Ⅰ are independent prognostic factors in patients with advanced gastric cancer who were treated with FOLFOX chemotherapy.
ObjectiveTo investigate the risk factors of hepatoduodenal lymph node (HDLN) metastasis in patients with advanced gastric cancer and its effect on prognosis. MethodsClinical datas of patients with advanced gastric cancer who underwent D2 radical gastrectomy for gastric cancer and HDLN dissection between Jan 2011 and Nov 2013 in department of general surgery of Ankang Central Hospital were retrospectively reviewed. Multivariate logistic regression analysis was performed to identify the independent risk factors associated with HDLN metastasis. Survival curves were performed to compare the survival rate of patients with or without HDLN metastasis and of patients with HDLN metastasis or with other lymph node metastasis. A Cox proportional hazards model was used for the multivariate analysis of risk factors for death in advanced gastric cancer. ResultsThe incidence of HDLN metastasis was 10.7% in patients with advanced gastric cancer. Multivariate logistic regression analyses revealed that the middle or lower stomach cancer (OR=6.014, P=0.002) and stage T3 or T4 (OR=5.133, P=0.021) were independent risk factors for HDLN metastasis. The 2-year overall survival (OS) rate was 36.7% in patients with HDLN metastasis. It was lower in patients with HDLN metastasis compared with those without (P=0.002). Limited to node-positive patients, patients with HDLN metastasis demonstrated decreased 2-year OS rate compared with node-positive patients without HDLN metastasis (P=0.027). Cox proportional hazard analysis identified poorly differentiated or undifferentiated cancer, stage of T3 or T4, and HDLN metastasis were independent poor prognostic factors in the patients with advanced gastric cancer (P < 0.05). ConclusionsCancer located in the middle or lower stomach, and stage T3 or T4 were independent risk factors for HDLN metastasis in patients with advanced gastric cancer. HDLN metastasis demonstrated a poor prognosis.
ObjectiveTo evaluate clinical effect of neoadjuvant chemotherapy combined with laparoscopic gastrectomy in treatment of local advanced gastric cancer. MethodsThe clinical data of 24 patients with local advanced gastric cancer undergoing 2 courses of FLEEOX neoadjuvant chemotherapy from July 2012 to July 2015 were analyzed. The efficacy of neoadjuvant chemotherapy based on radiographic results was evaluated. The gastrectomy was performed on week 2 after neoadjuvant chemotherapy. Patients were treated with XELOX regimen as adjuvant chemotherapy after laparoscopic gastrectomy. Results① Complete response occurred in 4 cases (16.6%), partial response in 18 cases (75.0%), stable disease in 1 case (4.2%), disease progressive in 1 case (4.2%). The total effective rate of neoadjuvant chemotherapy was 91.6% (22/24). ② The serum tumor markers CEA, CA19-9, and CA125 levels after neoadjuvant chemotherapy were significantly lower than those before neoadjuvant chemotherapy (P < 0.001) and reached normal levels. ③ Two courses of neoadjuvant chemotherapy and laparoscopic exploration were completed successfully in these 24 patients. Two patients with intraabdominal metastasis were underwent palliative gastrojejunostomy, the other 22 patients were underwent laparoscopic D2 radical gastrectomy. The operative time was (236±45) min, the intraoperative blood loss was (150±50) mL, the number of lymph node dissected was 17.4 ± 5.3, the postoperative gastrointestinal function recovery time was (3.1±0.8) d. ④ There was no death due to surgery. One case suffered anastomotic leakage, 1 case intestinal obstruction, and 1 case pulmonary infection after surgery. The postoperative complications were cured by conservative treatment. ⑤ The haematological adverse events included anemia (9 patients), leukopenia (14 patients), thrombocytopenia (8 patients), aminotransferase abnormality (5 in elevated ALT, 6 in elevated AST), the most common toxicity was nausea (19 patients), 10 patients suffered nerve toxicity. All the patients were relieved after treatment. ⑥ The patients were followed up for 4-39 months, 1 case died of cachexia as the result of extensive abdominal metastasis, 1 case died of liver failure as the result of multiple liver metastases, 1 case was death as the result of brain metastasis, 1 case was death as the result of the other cause, the other 20 patients were alive. ConclusionsThe preliminary results of limited cases in this study show that FLEEOX neoadjuvant chemotherapy combined with laparoscopic gastrectomy for local advanced gastric cancer is safe and effective. It has advantages of minimal invasion and fast recovery.
ObjectiveTo compare the clinical effects of continuous hyperthermic peritoneal perfusion chemotherapy (CHPPC) and intravenous chemotherapy for advanced gastric cancer patients, and find better nursing methods. MethodsSixty advanced gastric cancer patients who underwent chemotherapy between June 2013 and June 2014 were divided into CHPPC group (group C, n=30) and intravenous chemotherapy group (group V, n=30). We recorded the nursing methods for both the two groups, patients' satisfaction to the nursing and treatment, peritoneal metastasis rate and quality of life during the chemotherapy. ResultsThe life quality in group V was lower than that in group C (P<0.05). The differences in patients' satisfaction rate, peritoneal metastasis rate, and one-year survival rate were not significantly different between the two groups (P>0.05). ConclusionFor patients with advanced gastric cancer requiring chemotherapy, in spite of higher cost and more complicated operations, CHPPC is superior in lower adverse events rate, better quality of life during chemotherapy and doesn't decrease patients' satisfaction to the nursing and treatment.
Objective To evaluate the effectiveness and safety of postoperative intraperitoneal hyperthermic perfusion chemotherapy (IHPC) for advanced gastric cancer, so as to provide references for clinical practice and study. Methods The following databases including The Cochrane Library, PubMed, EMbase, CBM, CNKI, VIP and WanFang were searched on computer, and other searches were also performed to collect all relevant randomized controlled trials (RCTs) on postoperative IHPC versus intravenous chemotherapy alone (IC) for advanced gastric cancer. The quality of the included studies was assessed according to Cochrane Handbook 5.1 for Systematic Review, and Meta-analysis was conducted by using RevMan 5.1 software. Results A total of 18 RCTs involving 2299 patients were included. The results of meta-analyses showed that: a) Efficacy evaluation: There were significant differences between the IHPC group and the IC group in 1-, 2-, 3-, and 5-year survival rate, 3- and 5-year recurrence rate, and 3- and 5-year distant metastasis rate; the OR value and 95%CI were 1.88 (1.49, 2.39), 2.45 (1.64, 3.67), 2.29 (1.92, 2.73), 2.17 (1.70, 2.76), 0.39 (0.29, 0.52), 0.54 (0.40, 0.72), 0.55 (0.38, 0.78), 0.58 (0.42, 0.81), respectively; b) Safety evaluation: There were significant differences between the IHPC group and the IC group in the incidence of abdominal pain, abdominal distension, nausea and vomiting; the OR value and 95%CI were 2.20 (1.58, 3.07), 7.00 (2.67, 18.36), 0.65 (0.45, 0.95), respectively. But there were no significant differences between the IHPC group and the IC group in the incidence of alopecia, ileus, bone marrow inhibition, and hepatic lesion. Conclusion Compared with IC, postoperative IHPC+IC can improve survival rate and reduce the recurrence and distant metastasis rate; additionally, it is safe and feasible, so it is recommended that the detailed condition of patients should be taken into consideration when the postoperative IHPC+IC therapy is applied to clinic.
ObjectiveTo compare the clinical recovery and immune response between laparoscopic-assisted and open D2 gastrectomy for advanced gastric cancer. MethodsThe clinical data of 53 patients with advanced gastric cancer from January 2012 to October 2013 were studied prospectively. According to random number table, patients were randomly divided into laparoscopic-assisted group(LA group, n=27) and open operation group(OO group, n=26). Operative time, blood loss, time to passage of flatus, time to resume soft diet, after bed time, postoperative hospital stay, and number of retrieved lymph nodes were compared respectively between the two groups. The changes in CD3, CD4+, CD8+, IgG, IgA, IgM, and CRP were examined respectively by using flow cytometry and immunoturbidimetric assays on the preoperative day 1, and on the postoperative day 1 and 7. ResultsThe operative time was longer significantly in LA group than that in OO group(P < 0.05). The mean blood loss, the first flatus time, after bed time, and postoperative hospital stay in the two groups were all different statistically(P < 0.05), and all were better in LA group. However, the mean number of retrieved lymph nodes and the time to resume soft diet were not significantly different in the two groups(P > 0.05). On the day 1 and 7 after operation, the CD3, CD4+, and CD8+ significantly decreased as compared with those preoperatively in two groups(P < 0.01, P < 0.05). On the day 1 after operation, the levels of IgG, IgA, and IgM significantly decreased as compared with those preoperatively in two groups(P < 0.05). Those immunoglobulin in LA group recovered to close to the level before surgery, but in OO group sustained lower level(P < 0.05). On the day 1 and 7 after operation, CRP level significantly increased as compared with those preoperatively in two groups(P < 0.01, P < 0.05). Those changes of above index were not significantly different between the LA group and OO group on the day 1 after operation(P > 0.05). All index recovered gradually in the two groups on the day 7 after operation and were better in LA group(P < 0.05, except IgA). ConclusionLaparoscopic radical gastrectomy for advanced gastric cancer resulted in a quicker clinical recovery and a lesser depression to the perioperative cellular and humoral immune function.
Objective To systematically evaluate the safety and efficacy of trastuzumab combined with chemotherapy for HER-2 positive patients with advanced gastric cancer. Methods We searched ClinicalTrails.gov, PubMed, EMbase, Web of Science, The Cochrane Library (Issue 5, 2016), CNKI, CBM, WanFang Data, VIP and major meeting proceeding databases (ASCO and ESMO) from inception to May 2016, to collect randomized controlled trials (RCTs) or non-RCTs about trastuzumab combined with chemotherapy versus chemotherapy alone for advanced gastric cancer. Two reviewers independently screened literature, extracted data and assessed the risk of bias of the included studies. Meta-analysis was performed by using RevMan 5.3 software. Results Nine studies involving 1 034 HER-2 positive patients were included, of which three were RCTs and the other six were non-RCTs. Meta-analysis results indicated that the trastuzumab combined with chemotherapy group (the trial group) was superior to the chemotherapy alone group (the control group) in complete remission (OR=2.76, 95%CI 1.40 to 5.44,P=0.003), partial remission (OR=1.81, 95%CI 1.40 to 2.33,P<0.000 01), overall response rate (OR=2.09, 95%CI 1.63 to 2.68,P<0.000 01) and disease control rate (OR=2.20, 95%CI 1.63 to 2.98,P<0.000 1), while there was no statistical significances in stable disease (OR=0.87, 95%CI 0.66 to 1.14,P=0.31). In terms of safety, the incidence of diarrhea (OR=1.51, 95%CI 1.10 to 2.06,P=0.01) and erythra (OR=4.35, 95%CI 1.25 to 15.10,P=0.02) in the trial group were higher than the control group. However, other adverse reactions were no significant differences in two groups. Conclusion Compared with chemotherapy alone, trastuzumab combined with chemotherapy in the treatment of HER-2 positive patients with advanced gastric cancer can significantly improve response rate, but it may increase the incidence of diarrhea and erythra. Because of the limited quality and quantity of the included studies, the above conclusion needs to be verified by conducting more high quality studies.