Abstract
Advanced gastric cancer remains a significant concern for the medical community mostly due to the locoregional extension of the disease. Most commonly, stomach neoplasms are resectable, but not curable, due to the elevated percentage of peritoneal dissemination after gastrectomy and extensive lymph node dissection. Locoregional intraperitoneal chemotherapy plays a pivotal role in overall survival and prognosis of patients with advanced gastric cancer and shows a high probability of peritoneal dissemination after gastrectomy. In this review, we aimed to collect and present literature data concerning intraperitoneal chemotherapy in advanced stages of gastric cancer as well as evaluate the safety and survival benefit of the procedure. We conducted a survey including all randomized controlled trials and clinical trials that were published in the last 30 years. The keywords used were: advanced gastric cancer, intraperitoneal chemotherapy and peritoneal carcinomatosis. We searched for clinical trials in Pubmed, Embase databases and the Cochrane library. Inclusion criteria were: patients with advanced gastric cancer with no macroscopical signs of peritoneal dissemination, who were treated with D2 gastrectomy and received one or more cycles of intraperitoneal chemotherapy. The final review included 20 articles. The safety of intraperitoneal chemotherapy, as well as the survival benefit of patients were evaluated. The majority of articles denoted that intraperitoneal chemotherapy is a safe procedure without severe or lethal complications. The majority of complications were hematological while non-hematologic complications were also noted. A survival benefit with statistically significant results (p<0.05) was observed in 6 out of 10 randomized controlled trials. Intraperitoneal chemotherapy for advanced gastric cancer is a safe procedure with promising results regarding survival benefit and prognosis. Further patient evaluation is required in order to standardize the type of chemotherapeutic agent and the sufficient dose and cycles for the most appropriate results.
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