[Repeated intraperitoneal injection of low-dose CDDP for gastric cancer with ascites owing to peritonitis carcinomatosa].

We attempted treating 5 patients with ascites from peritonitis carcinomatosa of gastric carcinoma using TS-1 as systemic chemotherapy, and repeated intraperitoneal injection of low-dose CDDP for the carcinomatous ascites. TS-1 was administered in the usual manner and repeated intraperitoneal injection of CDDP (10 mg/body) dissolved in physiological saline 20-500 ml was given with an implantable reservoir. In 3 patients, the carcinomatous ascites disappeared, and in 2 other patients they decreased remarkably.