[Efficacy of TS-1 in patients with peritonitis carcinomatosa from gastric cancer].

Medical treatment with TS-1 was performed in patients with gastric cancer with peritonitis carcinomatosa. The median survival time for the patients who underwent distal or total gastrectomy was 14.0 months, and that for the patients who underwent exploratory laparotomy was 9.3 months. Compared with other medical care, the anti-cancer drug TS-1 enabled prolonged survival time and shortened hospitalization. Since TS-1 had few side effects, it was useful to patients suffering from gastric cancer with peritonitis carcinomatosa.