Published online Feb 16, 2015. doi: 10.4253/wjge.v7.i2.121
Peer-review started: June 16, 2014
First decision: July 17, 2014
Revised: November 10, 2014
Accepted: November 27, 2014
Article in press: December 1, 2014
Published online: February 16, 2015
Currently, endoscopic submucosal dissection (ESD) and laparoscopic gastrectomy (LG) have become widely accepted and increasingly play important roles in the treatment of gastric cancer. Data from an administrative database associated with the diagnosis procedure combination (DPC) system have revealed some circumstances of ESD and LG in Japan. Some studies demonstrated that medical costs or length of stay of patients receiving ESD for gastric cancer had become significantly reduced while length of hospitalization and costs were significantly increased in older patients. With respect to LG, some recent reports have shown that this has been a cost-beneficial treatment for patients compared with open gastrectomy while simultaneous LG and cholecystectomy is a safe procedure for patients with both gastric cancer and gallbladder stones. These epidemiological studies using the administrative database in the DPC system closely reflect clinical circumstances of endoscopic and surgical treatment for gastric cancer in Japan. However, DPC database does not contain detailed clinical data such as histological types and lesion size of gastric cancer. The link between the DPC database and another detailed clinical database may be vital for future research into endoscopic and laparoscopic treatments for gastric cancer.
Core tip: Currently, endoscopic submucosal dissection (ESD) and laparoscopic gastrectomy (LG) have become accepted for treatment of gastric cancer and increasingly played important roles on the treatments of gastric cancer in Japan. Using the database on national administrative database associated with the diagnosis procedure combination (DPC) system, the various studies with regards to ESD and LG for gastric cancer have been revealed. We herein describe the circumstance of ESD and LG for gastric cancer in Japan based on reports using Japanese administrative database associated in the DPC system in this review.